papaverine

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pa·pav·er·ine

 (pə-păv′ə-rēn′, -ər-ĭn)
n.
A nonnarcotic alkaloid obtained from the opium poppy, C20H21NO4, structurally distinct from morphine and other opiates, used in its hydrochloride form to relieve spasms of smooth muscle.

[Latin papāver, poppy + -ine.]

papaverine

(pəˈpeɪvəˌriːn; -rɪn)
n
(Elements & Compounds) a white crystalline almost insoluble alkaloid found in opium and used as an antispasmodic to treat coronary spasms and certain types of colic. Formula: C20H21NO4
[C19: from Latin papāver poppy]

pa•pav•er•ine

(pəˈpæv əˌrin, -ər ɪn, pəˈpeɪ vəˌrin, -vər ɪn)

n.
a white, crystalline alkaloid, C20H21NO4, used as a smooth-muscle relaxant.
[1855–60; < Latin papāver poppy + -ine2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.papaverine - an alkaloid medicine (trade name Kavrin) obtained from opium; used to relax smooth muscles; it is nonaddictive
muscle relaxant - a drug that reduces muscle contractility by blocking the transmission of nerve impulses or by decreasing the excitability of the motor end plate or by other actions