1. sedative
The doctor gave Tom a sedative.
the sedative effect of the drug
Chemical restraint This includes residents being given sedative or antipsychotic medication inappropriately, without regular review.
He believes I just gave him a sedative, but it was only a placebo.
if the patient gets agitated, the regulations say i must give them a sedative
I gave her a sedative an hour ago.
2. soporific
It was a long and soporific speech.
3. tranquilliser