Synonyms of 'sedative'
tranquillizerDictionary, narcotic, sleeping pill
They use opium as a sedative.
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soothing or alleviating pain or distress
Narcotics are drugs such as opium or heroin which make you sleepy and stop you feeling pain. You can also use narcotics, especially in American English, to mean any kind of illegal drug.
He appears to be under the influence of some sort of narcotic.
Thesaurus for sedative from the Collins English Thesaurus
A sedative is a medicine or drug that calms you or makes you sleep .