Doctor insights on:
Diphenhydramine Sedating Antihistamine
What amount of does take to get high off of diphenhydramine hci/antihistamine and how long does it take to kick in?
I have two different antihistamines...One is hydroxyzine and the other is is diphenhydramine..Which one will cause me to gain weight?
What are long term side effects of diphenhydramine antihistamines and do they lose effectiveness over time?
Minimal: Diphenhydramine is the active ingredient in Benadryl and has been around for a very long time. Like most antihistamines, there is not believed to be long term side effects. Losing effectiveness is less well studied, but with ongoing use there could be some development of tolerance or it could be that you are still being exposed to an allergen and that is why symptoms are not controlled. ...Read more
Antihistamines: All are antihistamines and redundant.Get a more detailed answer ›
Why can hydroxyzine be used for anxiety but not diphenhydramine? Both are antihistamines, one derived from the other, correct?
Besides doxylamine & diphenhydramine, what other OTC antihistamines cause drowsiness? Without a prescription.
Allegra: All antihistamines especially the first generation ones (benadryl, bromchlorpheniramine, CTM) can cause drowsiness when given in sufficient doses. Zyrtec at the recommended dose and Loratadine at 2x the recommended dose can cause drowsiness in some people. The least likely AH to cause drowsiness is fexofenadine (Allegra). ...Read moreSee 1 more doctor answer
What happens to the mucus in throat and lungs after taking a strong antihistamine like Diphenhydramine? Feels like it really dries everything up great
Does Diphenhydramine or any strong antihistamines such as seroquel affect muscle growth for athletes?since it affects REM sleep.
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