From Longman Dictionary of Contemporary Englishsedativesed‧a‧tive /ˈsedətɪv/ noun [countable] MDa drug used to make someone calm or go to sleep —sedative adjective
Examples from the Corpus
sedative• Doctors, the suit claims, also supervise attachment of a heart monitor and might give the condemned inmate a sedative.• He was offered a sedative for this test, too.• Ben Barka was then tied to a chair and injected with a sedative.• Valerian root has been used for centuries as a mild sedative.• The news was good: minor cuts, nothing deep, anti-tetanus injections just in case, mild sedative for shock.• In high amounts hops are such a potent sedative that Clement, working as an herbalist, offers them to dental patients.• Our vet came out early that morning with some sedative, but we needn't have bothered.• This annoyed the surgeon, who began to cut before the local or the sedative had taken effect. 