title: [Unipolar depression suddenly switches to hypomania in a patient who has just started taking venlafaxine].
abstract: A woman with a recurrent episode of a depression that hitherto had been unipolar developed a hypomania the day after her treatment with paroxetine 20 mg/day was switched to venlafaxine 75 mg/day. The hypomanic symptoms subsided gradually as the dosage was reduced and the patient thereafter remained in a euthymic state while on venlafaxine at a dose of 18.75 mg/day. Three possible explanations are discussed for the patient's response: there was a pharmacokinetic interaction between paroxetine and venlafaxine, the patient had an idiosyncratic reaction to venlafaxine or venlafaxine inhibited the re-uptake of norepinephrin.
authors.affiliation: Symfora Groep, De Meregaard, Almere. dghkrol@hotmail.com
authors.forename: D G H
authors.initials: DG
authors.lastname: Krol
authors.forename: W A
authors.initials: WA
authors.lastname: Nolen
mesh_terms: D000328:Adult; D018687:Antidepressive Agents, Second-Generation / Q000009:adverse effects* / Q000627:therapeutic use*; D001714:Bipolar Disorder / Q000139:chemically induced*; D003511:Cyclohexanols / Q000009:adverse effects / Q000627:therapeutic use; D003866:Depressive Disorder / Q000188:drug therapy*; D004347:Drug Interactions; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D017374:Paroxetine / Q000009:adverse effects / Q000627:therapeutic use; D016896:Treatment Outcome; D000069470:Venlafaxine Hydrochloride
chemical_list: D018687:Antidepressive Agents, Second-Generation; D003511:Cyclohexanols; D017374:Paroxetine; D000069470:Venlafaxine Hydrochloride