\sˈɛɹɪspˌan], \sˈɛɹɪspˌan], \s_ˈɛ_ɹ_ɪ_s_p_ˌa_n]\
Definitions of CERESPAN
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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.
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