Amex.
Amex
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Rat pharmacokinetics show a much shorter residence time than humans, but measured half-lives in rats are on the order of ~0.2–1.0 hours (12–60 minutes) in preclinical reports (not “a few minutes”).
Human half-life is longer (clinical t½ reported ~1–2 hours), so the same absolute dose in µg produces much higher exposure in humans than in rats. Regulatory documents and PK reviews note rapid clearance in rodents and higher clearance per kg than in humans
Human half-life is longer (clinical t½ reported ~1–2 hours), so the same absolute dose in µg produces much higher exposure in humans than in rats. Regulatory documents and PK reviews note rapid clearance in rodents and higher clearance per kg than in humans