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Low-dose risperidone augmentation of antidepressants or anxiolytics is associated with hyperprolactinemia.

AbstractOBJECTIVE: Risperidone in antipsychotic doses induces hyperprolactinemia. The aim of this study was to verify whether the same is true for low doses of risperidone (0.5-2 mg per day) added to antidepressants or anxiolytics. METHODS: Prolactin levels were measured in 4 men (mean age 49.5+/-19.1 years) and 8 women (mean age 31.3+/-8.2 years) inpatients with depressive and anxiety disorders who were treated with risperidone (median doses per day 1.25 mg) for median 15.5 days as an augmentation treatment to antidepressants (n=8), anxiolytics (n=6) and mood stabilizers (n=2). RESULTS: 11 of 12 patients had hyperprolactinemia. Median plasma prolactin level was 1598 mIU/ml, 95% CI 1 040-2 661 mIU/ml. Significant correlation between risperidone daily dose and plasma prolactin level (Spearman's R=0.655, p=0.02) was detected. Two women suffered from galactorrhea and one from amenorrhea. CONCLUSIONS: Even low doses of risperidone used as an augmentation to antidepressants or benzodiazepines are associated with hyperprolactinemia and can induce endocrinological side effects. The co-medication of antidepressants and benzodiazepines can potentially increase intensity of prolactinemia.
AuthorsMiloslav Kopecek, Martin Bares, Jirí Horacek, Pavel Mohr (Affiliation: Prague Psychiatric Centre, 3rd Medical Faculty Prague - Charles University, Centre of Neuropsychiatric Studies in Prague, Prague, Czech Republic. kopecek at pcp.lf3.cuni.cz)
JournalNeuro endocrinology letters (Neuro Endocrinol Lett) Vol. 27 Issue 6 Pg. 803-6 (Dec 2006) ISSN: 0172-780X Sweden
PMID17187006 (Publication Type: Clinical Trial, Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Anti-Anxiety Agents
  • Antidepressive Agents
  • Antipsychotic Agents
  • Benzodiazepines
  • Risperidone
  • Prolactin
Topics
  • Adult
  • Anti-Anxiety Agents (administration & dosage, therapeutic use)
  • Antidepressive Agents (administration & dosage, therapeutic use)
  • Antipsychotic Agents (administration & dosage, adverse effects)
  • Anxiety (blood, drug therapy)
  • Benzodiazepines (administration & dosage, therapeutic use)
  • Depressive Disorder (blood, drug therapy)
  • Dose-Response Relationship, Drug
  • Drug Therapy, Combination
  • Female
  • Humans
  • Hyperprolactinemia (chemically induced)
  • Male
  • Middle Aged
  • Prolactin (blood)
  • Risperidone (administration & dosage, adverse effects)
  • Statistics, Nonparametric