<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1561-2953</journal-id>
<journal-title><![CDATA[Revista Cubana de Endocrinología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Endocrinol]]></abbrev-journal-title>
<issn>1561-2953</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1561-29532013000200010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Preguntas y respuestas sobre aspectos generales del tratamiento farmacológico en el paciente obeso]]></article-title>
<article-title xml:lang="en"><![CDATA[Questions and answers about general aspects of the pharmacotherapy for the obese patients]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Rodríguez]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Licea Puig]]></surname>
<given-names><![CDATA[Manuel Emiliano]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castelo Elías-Calles]]></surname>
<given-names><![CDATA[Lizet]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro de Atención al Diabético INEN  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2013</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>214</fpage>
<lpage>228</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1561-29532013000200010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1561-29532013000200010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1561-29532013000200010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Introducción: a través del uso de la farmacoterapia en el paciente obeso se ha intentado obtener pérdidas de peso, mayores y más rápidas que las reportadas con los métodos convencionales de tratamiento, lo que sin dudas facilita una disminución objetiva de la morbilidad y mortalidad observada en los pacientes con este problema de salud. Objetivos: describir los aspectos generales del tratamiento farmacológico en el paciente obeso y mencionar algunos de los medicamentos usados con este fin. Desarrollo: resulta importante conocer los aspectos generales del tratamiento farmacológico de la obesidad. Consideraciones sobre cómo hacer la selección del fármaco ideal, los principios generales para su uso, cuáles son los criterios de elección de los pacientes y qué fármacos deben ser evitados en el paciente con obesidad, son elementos útiles a conocer para garantizar una asistencia médica de calidad a las personas con obesidad. Productos conocidos e indicados como tratamiento farmacológico de la obesidad pasaron al desuso, por su pobre efectividad o por presentar toda una serie de efectos secundarios. El uso de orlistat o xenical debe de ser la alternativa más común en el tratamiento actual con fármacos para la obesidad. La reciente aprobación de nuevos medicamentos como la lorcaserina (belviq) y qnexa (o qsymia), debe representar una opción de utilidad. Conclusiones: el conocimiento de los aspectos generales del tratamiento farmacológico de la obesidad es indispensable para su uso adecuado. La posibilidad de usar nuevos productos resulta una alternativa esperanzadora.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Introduction: through the use of pharnacotherapy in the obese patients, it has been intended to reach bigger and faster weight loses than those reported by the conventional therapeutic methods, all of which undoubtedly facilitates the objective reduction of morbidity and mortality observed in patients suffering this health problem. Objectives: to describe the general aspects of the drug therapy in the obese patient and to mention some of the drugs used. Development: it is important to know the general aspects of the pharmacotherapy for obesity. Considerations on how to select the optimal drug, the general principles of using it, the criteria for the selection of patients and the types of drugs to be avoided in the obese people are key elements to assure a quality medical care. Some well-known products that were prescribed as pharmaco treatment for obesity are not longer in use because of their ineffectiveness or adverse effects. The use of orlistat or xenical should be the most common alternative to treat this disease at present. The recent approval or new drugs such as Lorcaserina (belviq) and qnexa (qsymia) may represent useful options. Conclusions: the knowledge about the general aspects of the pharmacotherapy aimed at obesity is indispensable. The possibility of using new drugs turns out to be a hopeful alternative.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[obesidad]]></kwd>
<kwd lng="es"><![CDATA[tratamiento farmacológico]]></kwd>
<kwd lng="es"><![CDATA[pérdida de peso]]></kwd>
<kwd lng="en"><![CDATA[obesity]]></kwd>
<kwd lng="en"><![CDATA[drug treatment]]></kwd>
<kwd lng="en"><![CDATA[weight loss]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    <B>REVISI&Oacute;N BIBLIOGR&Aacute;FICA</B></font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="4"><b>Preguntas y    respuestas sobre aspectos generales del tratamiento farmacol&oacute;gico en    el paciente obeso</b></font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="4"><b><font size="3">Questions    and answers about general aspects of the pharmacotherapy for the obese patients    </font> </b></font></p>     <p>&nbsp;</p>     <p><B></B></p> <B>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Dr. Jos&eacute;    Hern&aacute;ndez Rodr&iacute;guez,<SUP> </SUP>Dr. Manuel Emiliano Licea Puig,    Dra. Lizet Castelo El&iacute;as-Calles</font>  </B>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Centro de Atenci&oacute;n    al Diab&eacute;tico. Instituto Nacional de Endocrinolog&iacute;a (INEN). La    Habana, Cuba.</font>      ]]></body>
<body><![CDATA[<P>&nbsp;     <P>&nbsp;     <P><hr size="1" noshade>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>RESUMEN </B></font></p> <B>     <P>  </B>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>Introducci&oacute;n:</b>    a trav&eacute;s del uso de la farmacoterapia en el paciente obeso se ha intentado    obtener p&eacute;rdidas de peso, mayores y m&aacute;s r&aacute;pidas que las    reportadas con los m&eacute;todos convencionales de tratamiento, lo que sin    dudas facilita una disminuci&oacute;n objetiva de la morbilidad y mortalidad    observada en los pacientes con este problema de salud.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>Objetivos:</B>    describir los aspectos generales del tratamiento farmacol&oacute;gico en el    paciente obeso y mencionar algunos de los medicamentos usados con este fin.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>Desarrollo:</B>    resulta importante conocer los aspectos generales del tratamiento farmacol&oacute;gico    de la obesidad. Consideraciones sobre c&oacute;mo hacer la selecci&oacute;n    del f&aacute;rmaco ideal, los principios generales para su uso, cu&aacute;les    son los criterios de elecci&oacute;n de los pacientes y qu&eacute; f&aacute;rmacos    deben ser evitados en el paciente con obesidad, son elementos &uacute;tiles    a conocer para garantizar una asistencia m&eacute;dica de calidad a las personas    con obesidad. Productos<B> </B>conocidos e indicados como tratamiento farmacol&oacute;gico    de la obesidad pasaron al desuso, por su pobre efectividad o por presentar toda    una serie de efectos secundarios. El uso de orlistat o xenical debe de ser la    alternativa m&aacute;s com&uacute;n en el tratamiento actual con f&aacute;rmacos    para la obesidad. La reciente aprobaci&oacute;n de nuevos medicamentos como    la lorcaserina (belviq) y qnexa (o qsymia), debe representar una opci&oacute;n    de utilidad.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>Conclusiones:</B>    el conocimiento de los aspectos generales del tratamiento farmacol&oacute;gico    de la obesidad es indispensable para su uso adecuado. La posibilidad de usar    nuevos productos resulta una alternativa esperanzadora. </font>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>Palabras clave:</B>    obesidad, tratamiento farmacol&oacute;gico, p&eacute;rdida de peso.<hr size="1" noshade></font>     ]]></body>
<body><![CDATA[<P>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>ABSTRACT</b></font></p>     <p><b><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Introduction:    </font></b><font face="Verdana, Arial, Helvetica, sans-serif" size="2">through    the use of pharnacotherapy in the obese patients, it has been intended to reach    bigger and faster weight loses than those reported by the conventional therapeutic    methods, all of which undoubtedly facilitates the objective reduction of morbidity    and mortality observed in patients suffering this health problem.    <br>   <b>Objectives: </b>to describe the general aspects of the drug therapy in the    obese patient and to mention some of the drugs used.    <br>   <b>Development:</b> it is important to know the general aspects of the pharmacotherapy    for obesity. Considerations on how to select the optimal drug, the general principles    of using it, the criteria for the selection of patients and the types of drugs    to be avoided in the obese people are key elements to assure a quality medical    care. Some well-known products that were prescribed as pharmaco treatment for    obesity are not longer in use because of their ineffectiveness or adverse effects.    The use of orlistat or xenical should be the most common alternative to treat    this disease at present. The recent approval or new drugs such as Lorcaserina    (belviq) and qnexa (qsymia) may represent useful options.    <br>   <b>Conclusions: </b>the knowledge about the general aspects of the pharmacotherapy    aimed at obesity is indispensable. The possibility of using new drugs turns    out to be a hopeful alternative.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Key words:</b>    obesity, drug treatment, weight loss.</font><hr size="1" noshade>     <p>&nbsp;</p>     <p>&nbsp;</p>     <P>      ]]></body>
<body><![CDATA[<P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B><font size="3">INTRODUCCI&Oacute;N</font>    </B> </font>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">La obesidad (OB)    es una enfermedad que presenta caracter&iacute;sticas muy peculiares, entre    las que podemos destacar las siguientes:<SUP>1-14</SUP> </font>     <P>  <ul>       <li> &nbsp;<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Antigua      (est&aacute; presente desde los albores de la humanidad hasta nuestros d&iacute;as).    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Frecuente      (sobre todo en los pa&iacute;ses desarrollados).    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Creciente      (su prevalencia contin&uacute;a aumentando de forma alarmante).    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Se presenta      a todas las edades, sexos y condiciones sociales.    ]]></body>
<body><![CDATA[<br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Es una      enfermedad cr&oacute;nica multifactorial (mezcla de factores gen&eacute;ticos,      metab&oacute;licos, endocrinol&oacute;gicos y ambientales). </font>     <br>   </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Es consecuencia      de la interacci&oacute;n entre el genotipo y el medio ambiente.    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Su origen      se relaciona con un desequilibrio entre la energ&iacute;a ingerida, debido      a una alimentaci&oacute;n inadecuada (por exceso), y la gastada, como consecuencia      de la falta de actividad f&iacute;sica regular.    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;La mayor&iacute;a      de los pacientes presentan una OB ex&oacute;gena o &quot;com&uacute;n&quot;,      que se puede prevenir, lo que evita la aparici&oacute;n de complicaciones      que afectan la calidad de vida de estas personas. Solo de 2-3 % de los obesos      presentan causas que secundariamente justifican esta condici&oacute;n.    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Implica      una acumulaci&oacute;n excesiva de grasa, que ocasiona un peso inadecuado      (&iacute;ndice de masa corporal [IMC] </font><font face="Symbol" size="2">&sup3;</font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">      30 kg/m<SUP>2</SUP>), cambios que ir&aacute;n asociados a diversas situaciones      patol&oacute;gicas.    ]]></body>
<body><![CDATA[<br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;Su tratamiento      se encamina a la realizaci&oacute;n de: dietoterapia, ejercicio f&iacute;sico,      medidas educativas, modificaci&oacute;n conductual, farmacoterapia (Ft) y      cirug&iacute;a bari&aacute;trica (CB), y en algunos casos, medidas espec&iacute;ficas      encaminadas al tratamiento de la enfermedad de base, en caso de ser esta de      causa secundaria.    <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&nbsp;El tratamiento      de las enfermedades que acompa&ntilde;an a la OB debe estar presente, pues      estas son causa de aumento de la morbilidad y mortalidad del paciente con      OB. </font> </li>     </ul>     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    <br>   En la pr&aacute;ctica m&eacute;dica habitual existen dificultades para conseguir    resultados significativos y duraderos en el tratamiento del paciente obeso.    De ah&iacute; que estemos hablando del cumplimiento riguroso de medidas dif&iacute;ciles    de seguir por la mayor&iacute;a de los pacientes.<SUP>2,13 </SUP>A trav&eacute;s    del uso de la Ft en el paciente obeso, se ha intentado obtener p&eacute;rdidas    de peso mayores y m&aacute;s r&aacute;pidas que las reportadas con los m&eacute;todos    convencionales de tratamiento, lo que, sin dudas, contribuye a una disminuci&oacute;n    objetiva de la morbilidad y mortalidad observada en los casos con este problema    de salud.<SUP> </SUP>La efectividad de los m&eacute;todos de reducci&oacute;n    de peso es limitada y existe un elevado &iacute;ndice de fracasos, ya que en    la mayor&iacute;a de los pacientes las reca&iacute;das son frecuentes y se acompa&ntilde;an    de la recuperaci&oacute;n del peso previo.<SUP>15,16</SUP> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">La Ft se basa en    el uso de medicamentos capaces de producir una p&eacute;rdida de peso y grasa    corporal a trav&eacute;s de diferentes mecanismos, que podemos observar en la    <a href="#fig1_10">figura</a>.<SUP>17</SUP> Su empleo, junto con el tratamiento    higi&eacute;nico diet&eacute;tico, as&iacute; como de otras medidas, puede constituir    una ayuda considerable para lograr este objetivo, y disminuir y/o controlar    el impacto de las comorbilidades que casi siempre acompa&ntilde;an a la OB.    </font>      <P align="center"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><a name="fig1_10"></a>    <img src="/img/revistas/end/v24n2/f01102013.jpg" width="420" height="363"> </font>      
]]></body>
<body><![CDATA[<P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    <br>   Por la importancia del tema se describen los aspectos generales del tratamiento    farmacol&oacute;gico en el paciente obeso, adem&aacute;s de mencionar algunos    de los productos m&aacute;s indicados a trav&eacute;s de los a&ntilde;os (la    mayor&iacute;a en desuso); pero, en particular, destacar la aprobaci&oacute;n    por las agencias reguladoras de nuevos productos, as&iacute; como de otros cuya    investigaci&oacute;n resulta una alternativa esperanzadora y en pleno desarrollo,    a trav&eacute;s de preguntas y respuestas sobre este tema.</font>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>    <br>   &#191;Cu&aacute;l es la meta perseguida por la mayor&iacute;a de las personas    con OB?</B></font> <B></B>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Tener la posibilidad    de disfrutar del placer de comer (incluso en grandes cantidades), y a pesar    de ello evitar las consecuencias del sobrepeso, con la ayuda de un preparado    c&oacute;modo en su administraci&oacute;n y que evite cualquier problema secundario<SUP>18    </SUP>es la meta perseguida por la mayor&iacute;a de las personas con OB, meta    que,<SUP> </SUP>por el momento no es realista. </font>     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>    <br>   &#191;Idealmente, qu&eacute; caracter&iacute;sticas debe tener una droga para    bajar de peso?</B> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Una droga para    bajar de peso debe reunir las caracter&iacute;sticas siguientes:<SUP>19</SUP>    </font>     <blockquote>       ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Reducci&oacute;n      demostrada de peso y enfermedades asociadas. </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Efectos      secundarios tolerables o transitorios. </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Sin reacciones      adversas mayores despu&eacute;s de a&ntilde;os de uso. </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Eficacia      mantenida a largo plazo. </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Sin propiedades      adictivas. </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Mecanismo(s)      de acci&oacute;n conocido(s). </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Costo      razonable. </font> </p> </blockquote>     <P>    <br>     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Evidentemente,    todav&iacute;a no se cuenta con un medicamento que re&uacute;na estas bondades    en su totalidad. La droga ideal para bajar de peso por el momento no existe.    </font>     ]]></body>
<body><![CDATA[<P>    <br>   <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>&#191;Qu&eacute;    principios b&aacute;sicos debemos tener presentes para el uso racional de los    f&aacute;rmacos anti&#173;obesidad?</B> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Se describen a    continuaci&oacute;n los principios b&aacute;sicos para el uso racional de los    f&aacute;rmacos anti&#173;obesidad:<SUP>20</SUP> </font>     <blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Uso solo como      coadyuvante del tratamiento diet&eacute;tico y los cambios en el estilo de      vida. Por el momento, no existe ninguna terapia farmacol&oacute;gica que permita      liberar el aporte cal&oacute;rico en el tratamiento de la OB. </font>     <br>     <font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Los f&aacute;rmacos      actuales no curan la OB, y su efectividad se prolonga &uacute;nicamente durante      su uso.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- La administraci&oacute;n      debe realizarse siempre bajo supervisi&oacute;n m&eacute;dica continuada.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- La elecci&oacute;n      del f&aacute;rmaco debe ser individualizada, una vez evaluados los riesgos      asociados a su uso. </font> </p> </blockquote>     <P>    ]]></body>
<body><![CDATA[<br>   <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>&#191;Cu&aacute;les    son los</B> <B>criterios de selecci&oacute;n para terapia con drogas anti-obesidad    en pacientes obesos?</B> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Los criterios de    selecci&oacute;n aparecen a continuaci&oacute;n:<SUP>21-23</SUP> </font>     <blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Pacientes con      IMC </font><font face="Symbol" size="2">&sup3;</font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">      30 kg/m<SUP>2</SUP> o un IMC de </font><font face="Symbol" size="2">&sup3;</font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">      27 kg/m<SUP>2</SUP> con comorbilidades, como: diabetes mellitus tipo 2 (DM      2), hipertensi&oacute;n arterial (HTA), dislipidemia (DLP), historia familiar      de padres obesos con muerte prematura por cardiopat&iacute;a isqu&eacute;mica      (CI) o DM 2 con complicaciones, entre otras, en los que la dieta y el ejercicio      no han logrado la p&eacute;rdida de peso esperada.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Pacientes      que f&iacute;sicamente tienen serias limitaciones por su peso corporal (obesidad      m&oacute;rbida), y que no est&eacute;n aptos o no deseen CB. </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    <br>     <B>&#191;Qu&eacute; otros aspectos se deben conocer?</B> </font> </p>   </blockquote>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Es de inter&eacute;s    conocer:<SUP>24</SUP> </font>      ]]></body>
<body><![CDATA[<blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- En general,      estos medicamentos pueden ser administrados m&aacute;s all&aacute; de 3 meses      si se ha perdido al menos 5 % del peso corporal desde el inicio del tratamiento.    <br>     - Si se recupera el peso perdido inicialmente, a pesar de haber cumplido correctamente      las indicaciones, el tratamiento debe ser interrumpido.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- La p&eacute;rdida      de peso durante el tratamiento es usualmente recobrada con el paso del tiempo      despu&eacute;s que cesa el tratamiento farmacol&oacute;gico, pero t&iacute;picamente      a un ritmo m&aacute;s lento que cuando se produjo la p&eacute;rdida de peso.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Un resultado      razonable y m&eacute;dicamente significativo para muchas personas obesas,      es la p&eacute;rdida del 10 % de peso corporal en los primeros 6 meses de      tratamiento farmacol&oacute;gico.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Se insiste      en que el uso de medicamentos como &uacute;nica opci&oacute;n es pr&aacute;cticamente      inefectivo.    <br>     </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Ante      la presencia de obesidad visceral, si el medicamento disminuye la acumulaci&oacute;n      de tejido adiposo intrabdominal, debe de ser considerado efectivo y apropiado.      </font> </p> </blockquote>     <P>    <br>   <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>&#191;Qu&eacute;    f&aacute;rmacos deben ser evitados en un paciente con OB? </B></font>     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">El uso de algunos    medicamentos puede favorecer el incremento de peso, y deben ser evitados, siempre    que sea posible, en un paciente con OB. En el <a href="/img/revistas/end/v24n2/c0110213.gif">cuadro</a>    se pueden observar los m&aacute;s representativos.<SUP>24-26</SUP> </font>  <B></B>      
]]></body>
<body><![CDATA[<P align="left">    <br>   <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>&#191;Qu&eacute;    no se debe indicar como tratamiento farmacol&oacute;gico de la OB?</B> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Existen diferentes    productos comercializados para la p&eacute;rdida de peso que contienen ingredientes    no declarados, y que por tanto, su consumo resulta un gran riesgo.<SUP>27 </SUP>El    consumo de las f&oacute;rmulas anti-obesidad de moda en muchos pa&iacute;ses,    suelen ser un aut&eacute;ntico <I>cocktail explosivo</I> compuesto por extractos    tiroideos, derivados anfetam&iacute;nicos, diur&eacute;ticos y benzodiacepinas,    entre otras.<SUP> </SUP>No se recomienda<SUP> </SUP>el uso de parches d&eacute;rmicos    o productos <I>light</I> sin evidencia cient&iacute;fica, ya que podr&iacute;an    ocasionar riesgos irreparables a la salud de quienes los utilicen.<SUP>24</SUP>    </font>     <P>    <br>   <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>&#191;Cu&aacute;les    han sido los productos m&aacute;s conocidos e indicados como tratamiento farmacol&oacute;gico    de la OB a lo largo de estos &uacute;ltimos a&ntilde;os?</B> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A continuaci&oacute;n    se expone una relaci&oacute;n de los productos<B> </B>m&aacute;s conocidos e    indicados como tratamiento farmacol&oacute;gico de la OB a lo largo de estos    &uacute;ltimos 100 a&ntilde;os, muchos de los cuales pasaron al desuso, por    su pobre efectividad o por presentar una serie de efectos secundarios que obligaron    a su retiro del mercado, as&iacute; como otros recientemente aprobados. Se hace    menci&oacute;n tambi&eacute;n, a ciertos medicamentos que se encuentran en estudio    y que se proponen para ser usados como monoterapia, y en otros casos, como terapia    combinada en el tratamiento de estos pacientes. </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Como se puede ver,    estos productos pueden actuar utilizando uno, o la combinaci&oacute;n de diferentes    mecanismos de acci&oacute;n: </font>     ]]></body>
<body><![CDATA[<P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos farmacol&oacute;gicos    que facilitan la disminuci&oacute;n de la ingesta: </font>     <blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Anfetaminas      (anfetamina, metanfetamina y fenmetracina).<SUP>28</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Derivados      de las anfetaminas (fentermina, dietilpropi&oacute;n, anfepromona, fendimetracina,      benzfetamina, fenilpropanolamina, fenproporex y clobenzorex).<SUP>26,28,29</SUP>      </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Actividad      similar a las anfetaminas (mazindol).<SUP>26,28</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Psicoestimulantes      o estimulantes psicomotores: metilfenidato.<SUP>26</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Inhibidores      selectivos de la recaptaci&oacute;n de serotonina (fenfluramina, dexfenfluramina,<I>      </I>fluoxetina, paroxetina, sertralina,<I> </I>fluvoxamina, paroxetina, citalopram      y sertralina).<SUP>26</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Combinaciones      de derivados de las anfetaminas con inhibidores selectivos de la recaptaci&oacute;n      de serotonina: fenfluramine-phentermine (aminorex).<SUP>30</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Inhibidores      selectivos de la recaptaci&oacute;n de noradrenalina y serotonina: sibutramina      o reductil o meridia.<SUP>31-33</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Antagonistas      del sistema endocanabinoide (bloqueadores selectivos de los receptores canabinoides      de tipo 1): rimonabant o acomplia.<SUP>17, 34-37</SUP> En estudio: taranabant,      otenabant y SLV-319. </font> </p>       ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Hormonas      capaces de producir saciedad en casos espec&iacute;ficos de carencia de esta      y utilizadas en el tratamiento de la OB (leptina).<SUP>38</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Inductores      de la saciedad por acci&oacute;n directa sobre el aparato digestivo (fibra      vegetal: Fibra Guar&#174;, Fibra Leo&#174; y Metamucil&#174;, metilcelulosa      y glucomanan).<SUP>17</SUP> </font> </p> </blockquote>     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos farmacol&oacute;gicos    que facilitan un incremento del gasto energ&eacute;tico: </font>     <blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Desacoplador      de la cadena respiratoria (dinitrofenol).<SUP>39,40</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Anfetaminas.<SUP>28</SUP>      </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Derivados      de las anfetaminas.<SUP>26,28,29</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Actividad      similar a las anfetaminas.<SUP>26,28</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Psicoestimulantes      o estimulantes psicomotores: metilfenidato.<SUP>26</SUP> </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Combinaciones      de derivados de las anfetaminas con inhibidores selectivos de la recaptaci&oacute;n      de serotonina: fenfluramine-phentermine (aminorex).<SUP>30</SUP> </font> </p>       ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Inhibidores      selectivos de la recaptaci&oacute;n de noradrenalina y serotonina.<SUP>26</SUP>      </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Modificaciones      metab&oacute;licas espec&iacute;ficas que facilitan la p&eacute;rdida cal&oacute;rica:      efedrina, cafe&iacute;na.<SUP>41</SUP> </font> </p> </blockquote>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Hormonas con    propiedades de de tipo lipol&iacute;ticas/antilipog&eacute;nicas en el tratamiento    de la OB: </font>     <blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Hormonas      tiroideas<SUP>17</SUP> (&uacute;til solo en caso de hipotiroidismo y OB).      </font> </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Gonadotropina      cori&oacute;nica humana (&uacute;til solo en caso de hipogonadismo y OB).</font>    </p>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Hormona      de crecimiento (&uacute;til solo en caso de d&eacute;ficit de dicha hormona      y OB). </font> </p> </blockquote>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos farmacol&oacute;gicos<B>    </B>inhibidores de la amilasa pancre&aacute;tica: faseolamina.<SUP>42,43</SUP>    </font>     ]]></body>
<body><![CDATA[<P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos farmacol&oacute;gicos<B>    </B>que disminuyen la absorci&oacute;n intestinal de las grasas: orlistat o    xenical.<SUP>44-47</SUP> </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos farmacol&oacute;gicos<B>    </B>sustitutos de las grasas: olestra.<SUP>48</SUP> </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos farmacol&oacute;gicos    que producen p&eacute;rdida de peso por deshidrataci&oacute;n:<SUP>17</SUP>    diur&eacute;ticos (tiazidas: furosemida, entre otras) y laxantes. </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Productos alternativos    no farmacol&oacute;gicos, que supuestamente act&uacute;an a trav&eacute;s de    diferentes mecanismos:<SUP>49</SUP> </font>     <blockquote>       <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&#149; Chitos&aacute;n,      picolinato de cromo, ephedra sinica o ma huang (contiene efedrina), garcinia      cambogia, glucomanano, hidroximetilbutirato, plantago psyllium, piruvato,      yerba mate y yohimbina, spirulina, vinagre de manzana, &aacute;cido linoleico      y centella asi&aacute;tica, entre otras. </font> </p> </blockquote>     ]]></body>
<body><![CDATA[<P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- F&aacute;rmacos    que pueden favorecer la p&eacute;rdida de peso en personas con prediabetes y/o    DM fundamentalmente. Entre ellos se han usado: </font> <ul>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Biguanidas (metformin      o metformina).<SUP>50-54</SUP><a href="#a01">*</a>    <br>         <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Inhibidores      de las alfa glucosidasas (acarbosa, miglitol y voglibosa).<SUP>55,56    <br>         <br>     </SUP> </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">An&aacute;logos      de acci&oacute;n prolongada de la hormona p&eacute;ptido 1 similar al glucag&oacute;n      (GLP-1) (exenatide o byetta, y el liraglutide o victosa).<SUP>57-63</SUP><a href="#a01">*</a>      Otros an&aacute;logos de GLP-1 en estudio (fase III): lixisenatide, albiglutide      y taspoglutide.<SUP>64</SUP>    <br>         ]]></body>
<body><![CDATA[<br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Inhibidores      de la dipeptidil peptidasa-4 (DPP-4) (sitagliptina y vildagliptina, fundamentalmente).<SUP>65-67</SUP>*      Alogliptin, linagliptina, saxagliptina, esitagliptina (estudios sobre su efectividad      terminan entre 2014 y 2018).    <br>         <br>     </font> </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">An&aacute;logo      sint&eacute;tico de la hormona amilina (pramlintide).<SUP>64,68-72</SUP><a href="#a01">*</a>      </font> </li>     </ul>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">- Drogas antiobesidad,    su futuro inmediato: los medicamentos que se se&ntilde;alan a continuaci&oacute;n    han sido estudiados para ser usados en el tratamiento de la OB, en monoterapia    o terapia combinada. Los mecanismos de acci&oacute;n de estos f&aacute;rmacos    pueden ser, en muchos casos, complementarios, por lo que muchos abogan por los    efectos sin&eacute;rgicos de las combinaciones entre medicamentos que operan    a trav&eacute;s de sistemas distintos, que generalmente producen principalmente    una disminuci&oacute;n del apetito y/o aumentan la p&eacute;rdida cal&oacute;rica.    En el caso del cetilistate act&uacute;a a trav&eacute;s de la disminuci&oacute;n    de la absorci&oacute;n intestinal de las grasas. Entre ellos se citan: </font>      <P>  <ul>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Monoterapia:</font>          ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Lorcaserina (belviq)<SUP>73-78</SUP><a href="#a02">**</a> </font> </p>         <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Tesofensina<SUP>79-81</SUP> </font> </p>         <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183; </b>Liraglutide<SUP>81,82        </SUP>(ya citado)<a href="#a03">*** </a></font> </p>         <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Cetilistate<SUP>81,83,84</SUP> </font> </p>   </li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Tratamiento      combinado: </font>          <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Bupropiona + naltrexona (contrave)<SUP>75,82,85-88</SUP> </font> </p>         <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Bupropiona + zonisamida (empatic)<SUP>75,82</SUP> </font> </p>         <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Fentermina + topiramato (qnexa o qsymia)<SUP>75,82,89-91</SUP><a href="#a02">**</a>        </font> </p>         <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>&#183;</b>        Pramlintide + metreleptina<SUP>82,92,93</SUP> </font> </p>   </li>     </ul>     ]]></body>
<body><![CDATA[<P>&nbsp;     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Lo expuesto permite    afirmar que la OB es una enfermedad que requiere de un tratamiento integral    e individualizado. Se conoce que puede ser de utilidad el empleo de medidas    farmacol&oacute;gicas en un gran n&uacute;mero de pacientes para obtener la    p&eacute;rdida de peso esperada, y de esta forma, disminuir sus consecuencias,    de ah&iacute; el gran valor de conocer los aspectos generales de este tipo de    tratamiento. Adem&aacute;s, se puede decir lo limitado que resultan los tratamientos    farmacol&oacute;gicos para la obesidad, el uso de orlistat o xenical debe de    ser la alternativa m&aacute;s com&uacute;n en el tratamiento actual con f&aacute;rmacos    para la obesidad. </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">La prescripci&oacute;n    racional de los an&aacute;logos de acci&oacute;n prolongada de la GLP-1 (exenatide    o byetta y el liraglutide o victosa),<SUP>57-63</SUP> de los inhibidores de    la DPP-4 (sitagliptina y la vildagliptina),<SUP>65-67</SUP> o del an&aacute;logo    sint&eacute;tico de la hormona amilina (pramlintide), para uso fundamentalmente    en pacientes con DM 2 con sobrepeso corporal u OB, ha significado un paso de    avance extraordinario. La reciente aprobaci&oacute;n del uso de la lorcaserina    (belviq) y de qnexa (o qsymia), para el tratamiento farmacol&oacute;gico de    la OB, es, sin dudas, una opci&oacute;n esperanzadora.</font>     <P>&nbsp;     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">_________________________</font>     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><SUP><a name="a01"></a>*</SUP>    Medicamentos aprobados en el tratamiento farmacol&oacute;gico del paciente con    DM 2 y OB.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><SUP><a name="a02"></a>**</SUP>    F&aacute;rmacos recientemente aprobados para uso en el tratamiento farmacol&oacute;gico    de la OB.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><SUP><a name="a03"></a>***</SUP>    F&aacute;rmacos recientemente aprobados para uso en el tratamiento farmacol&oacute;gico    de la OB y en el paciente obeso con DM 2. </font>      <P>&nbsp;      ]]></body>
<body><![CDATA[<P>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B><font size="3">REFERENCIAS    BIBLIOGR&Aacute;FICAS</font></B> </font>      <P>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">1. Pi-Sunyer FX.    The obesity epidemic: pathophysiology and consequences of obesity. Obes Res.    2002;10:97S-104S.     </font>     <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">2. Mart&iacute;nez    Olmos, M&Aacute;, Casanueva Freijo F. Avances en el tratamiento de la obesidad.    Aplicaciones a la pr&aacute;ctica cl&iacute;nica. Medicine. 2009;10(46):3083-90.    </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">3. Plaza J, Ciurana    JM, Vergara LL, Mateos F, Romero MI. Prevalencia de Obesidad en escolares. Rev    Clin Med Fam. 2008;2(3):106-10.     </font>     ]]></body>
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U.S. National Library    of Medicine [homepage en la Internet]. 2012 [citado 10 de septiembre de 2012].    Disponible en: <U><FONT  COLOR="#0000ff"><a href="http://www.nlm.nih.gov/medlineplus/news/fullstory_127324.html" target="_blank">http://www.nlm.nih.gov/medlineplus/news/fullstory_127324.html</a></FONT></U>    </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">92. Trevaskis JL,    Lei C, Koda JE, Weyer C, Parkes DG, Roth JD. Interaction of leptin and amylin    in the long-term maintenance of weight loss in diet-induced obese rats. Obesity    (Silver Spring). 2010;18:21-6.     </font>     <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">93. Ravussin E,    Smith SR, Mitchell JA, Shringarpure R, Shan K, Maier H, et al. Enhanced weight    loss with pramlintide/metreleptin: an integrated neurohormonal approach to obesity    pharmacotherapy. Obesity (Silver Spring). 2009;17:1736-43.    </font>     <P>&nbsp;     <P>&nbsp;      <P>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Recibido: 30 de    noviembre de 2012.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Aprobado:    18 de enero 2013.</font>     ]]></body>
<body><![CDATA[<P>&nbsp;     <P>&nbsp;      <P>      <P>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><I>Jos&eacute;    Hern&aacute;ndez Rodr&iacute;guez.</I> Centro de Atenci&oacute;n al Diab&eacute;tico    del INEN. Ave 17, esquina a D, Vedado, municipio Plaza de la Revoluci&oacute;n.<I>    </I>La Habana, Cuba. Correo electr&oacute;nico: <U><FONT  COLOR="#0000ff"><a href="mailto:pepehdez@infomed.sld.cu">pepehdez@infomed.sld.cu</a></FONT></U>    </font>       ]]></body><back>
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