<?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>0872-0754</journal-id>
<journal-title><![CDATA[Nascer e Crescer]]></journal-title>
<abbrev-journal-title><![CDATA[Nascer e Crescer]]></abbrev-journal-title>
<issn>0872-0754</issn>
<publisher>
<publisher-name><![CDATA[Centro Hospitalar do Porto]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0872-07542023000100038</article-id>
<article-id pub-id-type="doi">10.25753/birthgrowthmj.v32.i1.25482</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Trichotillomania, obsessive-compulsive symptoms, and methylphenidate &#8722; Is there a link?]]></article-title>
<article-title xml:lang="pt"><![CDATA[Tricotilomania, sintomas obsessivo-compulsivos e metilfenidato &#8722; Que relação?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Antunes]]></surname>
<given-names><![CDATA[Marta P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguiar]]></surname>
<given-names><![CDATA[Inês G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Hospitalar Universitário de Santo António Centro Materno-Infantil do Norte Department of Child and Adolescent Psychiatry]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2023</year>
</pub-date>
<volume>32</volume>
<numero>1</numero>
<fpage>38</fpage>
<lpage>40</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0872-07542023000100038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0872-07542023000100038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0872-07542023000100038&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Psychostimulants, especially methylphenidate (MPH), are established treatments for attention-deficit/hyperactivity disorder (ADHD) in children and adolescents. Their common side effects are well known, and, although trichotillomania (TTM) and obsessive-compulsive symptoms (OCS) are not formally listed among them, they are reported in the literature. This study describes a case of TTM and OCS associated with the use of MPH.  Clinical Case: A nine-year-old boy was referred to the Infant and Adolescence Psychiatry consultation due to obsessive thoughts and TTM. He presented to the first appointment already medicated with immediate-release MPH.  Discussion: The time span between MPH intake and the presentation of TTM and OCS, together with their resolution in the absence of MPH, raised clinical suspicion of an association between MPH and these conditions.  Conclusion: Although TTM and OCS can coexist with ADHD, it was not until MPH exposure that they were observed in the present case.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução: Os psicoestimulantes, particularmente o metilfenidato, são tratamentos estabelecidos para o tratamento da perturbação de hiperatividade e défice de atenção (PHDA) em idade pediátrica. Os efeitos adversos desta classe farmacológica são bem conhecidos e, apesar da tricotilomania e sintomas obsessivo-compulsivos não estarem formalmente identificados entre eles, estão descritos em casos na literatura. O presente estudo reporta um caso de tricotilomania e sintomas obsessivos-compulsivos associados ao uso de metilfenidato.  Caso Clínico: Um rapaz de nove anos de idade foi referenciado à consulta de Pedopsiquiatria por pensamentos obsessivos e tricotilomania. À data da primeira consulta, encontrava-se já medicado com metilfenidato de libertação imediata.  Discussão: A associação temporal entre o início da toma de metilfenidato e a apresentação de sintomas e a resolução dos mesmos após a suspensão do fármaco sugerem uma relação causal.  Conclusão: Embora estas entidades possam ser comórbidas, neste caso o quadro surgiu após a exposição a metilfenidato.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[methylphenidate]]></kwd>
<kwd lng="en"><![CDATA[obsessive-compulsive symptoms]]></kwd>
<kwd lng="en"><![CDATA[psychostimulant]]></kwd>
<kwd lng="en"><![CDATA[trichotillomania]]></kwd>
<kwd lng="pt"><![CDATA[metilfenidato]]></kwd>
<kwd lng="pt"><![CDATA[psicoestimulante]]></kwd>
<kwd lng="pt"><![CDATA[sintomas obsessivo-compulsivos]]></kwd>
<kwd lng="pt"><![CDATA[tricotilomania]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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