Antagonism of d-lysergic acid diethylamide and mescaline by 1-methyl-1, 2, 5, 6-tetrahydropyridine-N, N-diethyl-carboxamide (THPC)

Dyer, D.C.; Benington, F.; Morin, R.D.

Archives Internationales de Pharmacodynamie et de Therapie 217(2): 197-200

1975


ISSN/ISBN: 0003-9780
PMID: 127560
Document Number: 84395
Contractions of sheep umbilical vasculature induced by 5-hydroxytryptamine, mescaline and d-lysergic acid diethylamide (LSD) were antagonized by 1-methyl-1, 2, 5, 6-tetrahydropyridine-N, N-diethyl-carboxamide (THPC) 5 X 10(-4)M. THPC did not block contractile responses to angiotensin. The data are interpreted to support our previous suggestions that certain chemical entities representing portions of the LSD molecule may be effectively studied as antagonists to the hallucinogens. The present data indicate that THPC is a weak 5-hydroxytryptamine receptor antagonist.

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