ABSTRACT
INTRODUCTION: Attention deficit hyperactivity disorder has a prevalence of 1-4% of the Spanish school population. Its treatment consists of giving amphetamine derivatives and, recently, non-stimulant drugs, without finding any differences in efficacy in the studies performed. CLINICAL CASE: A 7-year-old girl was referred from neurology due to learning delay and behaviour disorders. Diagnosed as likely ADHD, treatment was started with immediate release methylphenidate, and later with an osmotic release oral system (OROS) methylphenidate. When alopecia areata appeared, this treatment was withdrawn. After the re-introduction of modified release methylphenidate 30:70, symptom control was achieved without the appearance of alopecia. DISCUSSION: There is a published history of two cases of alopecia areata with OROS methylphenidate that resolved after increasing the dose of the drug without clearly knowing the reason for this event. There is no consensus on the priority use of the immediate release formula or the OROS methylphenidate.
Subject(s)
Alopecia Areata/chemically induced , Central Nervous System Stimulants/adverse effects , Methylphenidate/adverse effects , Administration, Oral , Attention Deficit Disorder with Hyperactivity/drug therapy , Central Nervous System Stimulants/administration & dosage , Child , Delayed-Action Preparations , Female , Humans , Methylphenidate/administration & dosageABSTRACT
RESUMEN Introducción: El TDAH tiene una prevalencia del 1-4% de la población escolar española. Su tratamiento se realiza con derivados anfetamínicos y, recientemente, con fármacos no esti mulantes; los estudios realizados no han encontrado diferencias de eficacia. Caso clínico: Niña de 7 arios llegó derivada desde neurología por retraso en el aprendizaje y trastornos de conducta. Orientada como TDAH, se inició tratamiento con metilfenidato de liberación inmediata y posteriormente con la fórmula OROS; apareció alopecia areata y se retiró el tratamiento. Tras la reintroducción de metilfenidato de liberación modificada 30:70, se consiguió controlar los síntomas sin que apareciera alopecia. Discusión: Hay antecedentes publicados de 2 casos de alopecia areata con metilfenidato OROS, que se resolvieron tras el aumento de dosis del fármaco, aunque no se conoce clara mente el motivo de este suceso. No hay consenso sobre el uso prioritario de la fórmula de liberación inmediata o la fórmula OROS del metilfenidato.
ABSTRACT Introduction: Attention deficit hyperactivity disorder has a prevalence of 1-4% of the Spanish school population. Its treatment consists of giving amphetamine derivatives and, recently, non-stimulant drugs, without finding any differences in efficacy in the studies performed. Clinical case: A 7-year-old girl was referred from neurology due to learning delay and behaviour disorders. Diagnosed as likely ADHD, treatment was started with immediate release methylphenidate, and later with an osmotic release oral system (OROS) methylphenidate. When alopecia areata appeared, this treatment was withdrawn. After the re-introduction of modified release methylphenidate 30:70, symptom control was achieved without the appearance of alopecia. Discussion: There is a published history of two cases of alopecia areata with OROS methylp henidate that resolved after increasing the dose of the drug without clearly knowing the reason for this event. There is no consensus on the priority use of the immediate release formula or the OROS methylphenidate.
