Serotonin syndrome secondary to phenelzine-venlafaxine interaction. 1998

L A Weiner, and M Smythe, and J Cisek
Department of Pharmacy Practice, Wayne State University, Detroit, Michigan, USA.

A 44-year-old woman accidentally ingested phenelzine along with venlafaxine. Thirty minutes after the ingestion the woman began to feel nauseous and anxious. Approximately 45 minutes later a friend noted that the woman had lower extremity shaking and increasingly rapid respirations. The friend brought the woman to the emergency department and she was subsequently diagnosed with serotonin syndrome. Serotonin syndrome is usually precipitated by combinations of serotonin-potentiating agents and can lead to devastating outcomes. When using combinations of drugs that elevate serotonin levels in the central nervous system, the possibility of serotonin syndrome should be considered.

UI MeSH Term Description Entries
D010624 Phenelzine One of the MONOAMINE OXIDASE INHIBITORS used to treat DEPRESSION; PHOBIC DISORDERS; and PANIC. Fenelzin,2-Phenethylhydrazine,Nardelzine,Nardil,Phenelzine Sulfate,Phenethylhydrazine,beta-Phenylethylhydrazine,2 Phenethylhydrazine,Sulfate, Phenelzine,beta Phenylethylhydrazine
D002490 Central Nervous System The main information-processing organs of the nervous system, consisting of the brain, spinal cord, and meninges. Cerebrospinal Axis,Axi, Cerebrospinal,Axis, Cerebrospinal,Central Nervous Systems,Cerebrospinal Axi,Nervous System, Central,Nervous Systems, Central,Systems, Central Nervous
D002493 Central Nervous System Diseases Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord. CNS Disease,Central Nervous System Disease,Central Nervous System Disorder,CNS Diseases,Central Nervous System Disorders
D003511 Cyclohexanols Monohydroxy derivatives of cyclohexanes that contain the general formula R-C6H11O. They have a camphorlike odor and are used in making soaps, insecticides, germicides, dry cleaning, and plasticizers. Cyclohexanol
D004347 Drug Interactions The action of a drug that may affect the activity, metabolism, or toxicity of another drug. Drug Interaction,Interaction, Drug,Interactions, Drug
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000069470 Venlafaxine Hydrochloride A cyclohexanol and phenylethylamine derivative that functions as a SEROTONIN AND NORADRENALINE REUPTAKE INHIBITOR (SNRI) and is used as an ANTIDEPRESSIVE AGENT. 1-(2-(dimethylamino)-1-(4-methoxyphenyl)ethyl)cyclohexanol HCl,Cyclohexanol, 1-(2-(dimethylamino)-1-(4-methoxyphenyl)ethyl)-, hydrochloride,Dobupal,Efexor,Effexor,Sila-Venlafaxine,Trevilor,Vandral,Venlafaxine,Wy 45030,Wy-45,030,Wy-45030,Hydrochloride, Venlafaxine,Sila Venlafaxine,Wy 45,030,Wy45,030,Wy45030
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
D000928 Antidepressive Agents Mood-stimulating drugs used primarily in the treatment of affective disorders and related conditions. Several MONOAMINE OXIDASE INHIBITORS are useful as antidepressants apparently as a long-term consequence of their modulation of catecholamine levels. The tricyclic compounds useful as antidepressive agents (ANTIDEPRESSIVE AGENTS, TRICYCLIC) also appear to act through brain catecholamine systems. A third group (ANTIDEPRESSIVE AGENTS, SECOND-GENERATION) is a diverse group of drugs including some that act specifically on serotonergic systems. Antidepressant,Antidepressant Drug,Antidepressant Medication,Antidepressants,Antidepressive Agent,Thymoanaleptic,Thymoanaleptics,Thymoleptic,Thymoleptics,Antidepressant Drugs,Agent, Antidepressive,Drug, Antidepressant,Medication, Antidepressant

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