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Hypotension Due to ChlorpromazineRelation to Cigarette Smoking, Blood Pressure, and Dosage
Chester Swett, Jr, MD;
Jonathan O. Cole, MD;
Stuart C. Hartz, ScD;
Samuel Shapiro, MB, FRCP;
Dennis Slone, MD
Arch Gen Psychiatry. 1977;34(6):661-663.
Abstract
The frequency of hypotension attributed to orally administered chlorpromazine hydrochloride was compared among 187 nonsmokers, 223 "light" smokers, 87 "intermediate" smokers, and 18 "heavy" smokers. Hypotension attributed to the drug occurred in 10%, 8%, 5%, and 0%, respectively. Other factors found to be independently related to hypotension were high diastolic blood pressure on admission and high dosage of chlorpromazine. The results suggest that smoking status, dosage, and blood pressure must be evaluated in order to estimate the likelihood that a patient may become hypotensive after receiving chlorpromazine.
Author Affiliations
From the Drug Epidemiology Unit, Boston University School of Medicine, and Harvard Medical School, McLean Hospital, Belmont, Mass.
Footnotes
Accepted for publication Nov 14, 1975.
Reprint requests to Harvard Medical School, McLean Hospital, Belmont, MA 02178 (Dr Swett).
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