Biperiden is an anticholinergic drug mostly used to eliminate extra-pyramidial system side effects caused by antipsychotic drugs in psychiatry. It is grouped together with benztropin, procyclidin, and trihexyphenidyl, which have prominent antiparkinson effects, rather than anticholinergic drugs like oxybutynin, flavoxate, and dicyclomine, which have prominent genitourinary system side effects. It is well known that it can cause urinary retention as a side effect though this effect is known to be more dominant in males. It is reported that males with prostate hypertrophy have more risk for urinary retention. In the literature, we could not find any female patients developing urinary retention due to use of biperiden. In this report, we present a female patient with urinary retention caused by biperiden use.
Key words: Anticholinergic; Biperiden; Urinary Retention.
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