Clin Pharmacol Ther. 1979 Apr;25(4):440-6.

Cardiovascular effects of intravenous delta-9-tetrahydrocannabinol: autonomic nervous mechanisms.

Benowitz NL, Rosenberg J, Rogers W, Bachman J, Jones RT.

Abstract

The contribution of autonomic nervous system activity to the cardiovascular effects of delta-9-tetrahydrocannabinol (THC) was evaluated in 4 normal subjects. The peak heart rate rise after THC was attenuated by atropine and by propranolol, and nearly abolished by atropine-propranolol pretreatment. Blocking drugs also attenuated THC-induced changes in forearm blood flow and vascular resistance but did not affect changes in fingertip temperature. The data suggest that THC acts to induce sympathetic stimulation and parasympathetic inhibition of cardiovascular control pathways. Cardiovascular responses in an additional subject who developed hypertension after either intravenous or smoked marijuana are described.

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Cardiovascular effects of intravenous delta-9-tetrahydrocannabinol: autonomic ne...
Cardiovascular effects of intravenous delta-9-tetrahydrocannabinol: autonomic nervous mechanisms.
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Cardiovascular effects of intravenous delta-9-tetrahydrocannabinol: autonomic nervous mechanisms.

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