Ketamine onset after intramuscular administration is approximately which time?

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Multiple Choice

Ketamine onset after intramuscular administration is approximately which time?

Explanation:
Ketamine given by intramuscular injection is absorbed quickly from the muscle into the bloodstream, but not as instantly as IV delivery. This route yields effects in a matter of minutes, typically around two to four minutes. Intravenous administration acts within seconds, intranasal takes a bit longer (several minutes), and oral use is variable due to first-pass metabolism. So the best estimate for IM onset is about 2–4 minutes.

Ketamine given by intramuscular injection is absorbed quickly from the muscle into the bloodstream, but not as instantly as IV delivery. This route yields effects in a matter of minutes, typically around two to four minutes. Intravenous administration acts within seconds, intranasal takes a bit longer (several minutes), and oral use is variable due to first-pass metabolism. So the best estimate for IM onset is about 2–4 minutes.

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