How much diphenhydramine is too much?!
Question: i took150 mg. of pure diphenhydramine tablets can that be an overdose? i got a sharp pain on the left side of my chest...near my heart. and my heart is beating a lil bit faster...
Answers: i took150 mg. of pure diphenhydramine tablets can that be an overdose? i got a sharp pain on the left side of my chest...near my heart. and my heart is beating a lil bit faster...
For an adult 150 mg shouldn't be an overdose. Some people take up to 400mg/day. As for the chest pain... Dyphenhydramine (benadryl) is an anticholinergic agent with side effects that can include tachycardia (fast heat-rate).
Normal dose is 50mg, but I don't think 150 will cause any long term damage, but if you start noticing really bad effects then go to the DR. or at least call a poison control center and they can advise you.