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Asked by redfruitloop - 1 year ago
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Sparky5458 Level 63 / Retired Golfer
Answered 1 year ago
A question for a pharmacist.
labarca Level 64
Answered 1 year ago
If you mean the injection given to counteract opiate overdose,
I found this on Wikipedia:
"Naloxone is most commonly injected intravenously for fastest action.
The drug generally acts within a minute, and its effects may last up to
45 minutes."

But Wikipedia' and especially me, are not good substitutes for asking
a doctor
XoTilWeOverdose Level 1
Answered 1 year ago
Naloxone acts within minutes and its effects usually last up 45 minutes. Its duration of action will depend on how it was given (eg IM injection will last longer than IV injection) and how much was given. Naloxone has a half life of 1 to 1 1/2 hours (this is the time it takes the body to clear the plasma of the drug by half).
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