opioid antagonist

American  

[oh-pee-oid-an-tag-uh-nist] / ˈoʊ piˌɔɪd ænˈtæg ə nɪst /

noun

1. Pharmacology. any drug that counteracts the effects of an opioid, used primarily to treat opioid overdose and as a therapy for opioid or alcohol addiction.

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Example Sentences

Naloxone is a very powerful opioid antagonist.

From Slate

Hope arrives in the form of a shot, an “opioid antagonist” that blocks the high of opioids, offering users an “immunity” of sorts.

From Los Angeles Times

A new drug therapy — the “opioid antagonist” Naltrexone, which promises to block the effect of opiates with a monthly shot, taking away the high that feeds addiction — beckons.

From Washington Post

He said 911 should be called immediately and Narcan or naloxone — an opioid antagonist available at any major pharmacy — should be administered as soon as possible.

From Seattle Times

The updated law authorizes anyone to administer an opioid antagonist as long as they believe in good faith the person receiving the drug is experience an overdose.

From Washington Times