Oats exhibit opioid activity. - GreenMedInfo Summary

Abstract Title:

The pharmacology of Avena sativa.

Abstract Source:

J Pharm Pharmacol. 1975 Feb;27(2):92-8. PMID: 237083

Abstract Author(s):

J Connor, T Connor, P B Marshall, A Reid, M J Turnbull


The pharmacology of Avena sativa has been investigated in laboratory animals following a report that tincture of Avena sativa reduced the craying for cigarettes in man. The tincture, evaporated to dryness, craving for cigarettes in man. The tincture, evaporated to dryness, re-constituted in an equal volume of water and administered by stomach tube or intraperitoneal injection, antagonized the antinociceptive effect of morphine in two separate test (hot-plate and tail flick). Compared with animals made depedent on morphine alone, mice pretreated with repeated injections of morphine plus extract passed a smaller number of stools and tended to jump less after administration of nalorphine. The pressor response to intravenously administered nicotine in urethane-anaesthetized rats was also antagonized by prior administration of Avena sativa. However, the aqueous extract prepared from the tincture did not affect the seizure threshold to bemegride or nicotine or the sleeping time induced by barbitone sodium.

Study Type : Animal Study

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