Abstract
Summary
In a series of 28 cats injected with varying doses of chlorpromazine, 13 (46%) developed tremors. The basic tremor was present at rest and disappeared on movement. The rhythm was most often 6-8/sec, but a few animals displayed a faster or slower rate. The tremor was reversible and reproducible. The implications of these observations relative to human parkinsonism are discussed.
The authors are indebted to Doctors Ingram, Sash and Correll for valuable assistance and suggestions.
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