A member asked:

I ingested an allergen 5 days ago. i am still having a reaction and benadryl (diphenhydramine) is the only drug working well. at 190 lbs how much can i take safely?

A doctor has provided 1 answer
Dr. John Chiu answered

Unusual: Unless it was a drug, the allergic reaction does not usually lasts this long. As for Benadryl, (diphenhydramine) the dose is more dependent on its side effects than weight. Most people should be able to tolerate up to 50 mg 4x daily (except those

Answered 10/11/2014

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