Mianserin treatment of patients with
psychosis induced by antiparkinsonian drugs
by
Ikeguchi K, Kuroda A
Department of Neurology,
Jichi Medical School, Tochigiken, Japan. .
Eur Arch Psychiatry Clin Neurosci 1995; 244(6):320-4

ABSTRACT

We evaluated the effects of mianserin, a relatively selective 5-HT2 receptor antagonist, on symptoms related to drug-induced psychosis in patients with Parkinson's disease (PD). A total of 12 patients with PD who had developed drug-induced psychosis showed delirium (DSM-III-R criteria; n = 10) and pure visual hallucinations (n = 2). The antiparkinsonian drugs involved in the drug-induced psychosis were L-DOPA/carbidopa, bromocriptine, trihexyphenidyl, and amantadine. They received mianserin (mean 36.7 mg, range 20-60 mg) given orally for 8 weeks. Complete relief or marked improvement in psychotic symptoms was noted in 8 patients, moderate improvement in 2 patients, and no effect in 2 patients. The parkinsonian disability also decreased slightly in 8 patients. These results suggest that serotonin antagonism at 5-HT2 receptors may not only play an important role in the treatment of drug-induced psychosis in PD, but may also ameliorate the symptoms of parkinsonism.

5-HT2
Isatin
L-Dopa
Mianserin
Cabergoline
Amantadine
Bromocriptine
Antipsychotics
Parkinson's disease
Pramipexole : review
Advanced Parkinson's disease
Parkinson's disease: resources
Dopamine, gambling and sex manias
Hedonistic homeostatic dysregulation

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