ANTISPASMODIC
antispasmodic, spasmolytic, antispasmodic agent
(noun) a drug used to relieve or prevent spasms (especially of the smooth muscles)
Source: WordNet® 3.1
Etymology
Adjective
antispasmodic (not comparable)
(pharmaceutical effect) Referring to something that suppresses spasms, generally a drug.
Noun
antispasmodic (plural antispasmodics)
(pharmaceutical drug) A drug that suppresses spasms.
Source: Wiktionary
An`ti*spas*mod"ic, a. (Med.)
Definition: Good against spasms.
– n.
Definition: A medicine which prevents or allays spasms or convulsions.
Source: Webster’s Unabridged Dictionary 1913 Edition