Serotonin syndrome after challenge with the 5-HT agonist meta-chlorophenylpiperazine. 1998

T Klaassen, and K L Ho Pian, and H G Westenberg, and J A den Boer, and H M van Praag
Department of Psychiatry and Neuropsychology, Maastricht University, The Netherlands.

meta-Chlorophenylpiperazine (mCPP) is a non-selective 5-HT-receptor agonist/antagonist that is used extensively in psychiatry to assess central serotonergic function. We report on three patients who developed symptoms of the serotonin syndrome when they participated in an mCPP (0.5 mg/kg body weight p.o.) challenge test as part of a research protocol. They had relatively high plasma mCPP concentrations. The syndrome did not occur in normal volunteers who had comparable plasma concentrations of mCPP. Investigators should be aware of the possible occurrence of the serotonin syndrome after a single oral dose of mCPP.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009207 Myoclonus Involuntary shock-like contractions, irregular in rhythm and amplitude, followed by relaxation, of a muscle or a group of muscles. This condition may be a feature of some CENTRAL NERVOUS SYSTEM DISEASES; (e.g., EPILEPSY, MYOCLONIC). Nocturnal myoclonus is the principal feature of the NOCTURNAL MYOCLONUS SYNDROME. (From Adams et al., Principles of Neurology, 6th ed, pp102-3). Myoclonus, Action,Myoclonus, Nocturnal,Myoclonus, Palatal,Polymyoclonus,Myoclonic Jerk,Myoclonic Jerking,Myoclonus Simplex,Myoclonus, Eyelid,Myoclonus, Intention,Myoclonus, Lower Extremity,Myoclonus, Oculopalatal,Myoclonus, Segmental,Myoclonus, Sleep,Myoclonus, Upper Extremity,Action Myoclonus,Extremity Myoclonus, Lower,Extremity Myoclonus, Upper,Eyelid Myoclonus,Intention Myoclonus,Jerk, Myoclonic,Jerking, Myoclonic,Jerks, Myoclonic,Lower Extremity Myoclonus,Myoclonic Jerks,Nocturnal Myoclonus,Oculopalatal Myoclonus,Palatal Myoclonus,Segmental Myoclonus,Simplex, Myoclonus,Sleep Myoclonus,Upper Extremity Myoclonus
D010879 Piperazines Compounds that are derived from PIPERAZINE.
D003072 Cognition Disorders Disorders characterized by disturbances in mental processes related to learning, thinking, reasoning, and judgment. Overinclusion,Disorder, Cognition,Disorders, Cognition
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001342 Autonomic Nervous System Diseases Diseases of the AUTONOMIC NERVOUS SYSTEM, including sympathetic, parasympathetic, and enteric nervous systems. Autonomic Disorders,Central Autonomic Nervous System Diseases,Disorders of the Autonomic Nervous System,Dysautonomia,Nervous System Diseases, Autonomic,Nervous System Diseases, Parasympathetic,Nervous System Diseases, Sympathetic,Non-Familial Dysautonomia,Parasympathetic Nervous System Diseases,Peripheral Autonomic Nervous System Diseases,Sympathetic Nervous System Diseases,ANS (Autonomic Nervous System) Diseases,ANS Diseases,Autonomic Central Nervous System Diseases,Autonomic Diseases,Autonomic Nervous System Disorders,Autonomic Peripheral Nervous System Diseases,Segmental Autonomic Dysfunction,ANS Disease,Autonomic Disease,Autonomic Disorder,Autonomic Dysfunction, Segmental,Autonomic Dysfunctions, Segmental,Disorder, Autonomic,Dysautonomia, Non-Familial,Dysautonomias,Non Familial Dysautonomia,Non-Familial Dysautonomias,Segmental Autonomic Dysfunctions
D013577 Syndrome A characteristic symptom complex. Symptom Cluster,Cluster, Symptom,Clusters, Symptom,Symptom Clusters,Syndromes

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