Mesh term Papaverine
Browse to parent terms:Benzylisoquinolines
Opiate Alkaloids
Description
An alkaloid found in opium but not closely related to the other opium alkaloids in its structure or pharmacological actions. It is a direct-acting smooth muscle relaxant used in the treatment of impotence and as a vasodilator, especially for cerebral vasodilation. The mechanism of its pharmacological actions is not clear, but it apparently can inhibit phosphodiesterases and it may have direct actions on calcium channels.Browse to child terms:
Tetrahydropapaveroline
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