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A member asked:
How long does it take for a severe allergic reaction to medication take, specifically anaphylaxis?
A doctor has provided 1 answer
Basics: For injected meds we would expect such a reaction within 15-30 minutes while oral medications could start as soon as any absorption occurred, usually within an hour or two. In some cases there might be a delay, but that would be the exception.
Answered 1/27/2021
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