Donât get blown away by that big, intimidating word! We havenât introduced word roots yet. I just wanted to demonstrate the major parts of a medical term. Letâs see how prefix and suffix changes can alter the meaning of a term without changing its central meaning by keeping the root the same.
Making the world better, one answer at a time. Benadryl, or diphenhydramine hydrochloride, when taken by mouth, works within 15 to 60 minutes. When injected through a muscle, it takes 20 to 30 minutes to work.When injected through a vein, it works rapidly. The effects of diphenhydramine hydrochloride work for approximately 4 to 8 hours, regardless of the form in which it is taken.aking the world better, one answer at a time. Benadryl, or diphenhydramine hydrochloride, when taken by mouth, works within 15 to 60 minutes. When injected through a muscle, it takes 20 to 30 minutes to work. When injected through a vein, it works rapidly.
They might make you tired but usually starts working for me in 30 to 45 minutes. Klonopin did work for me but it does take awhile. Benadryl is over the counter, Visteral takes a scripe. If you can't wait acouple of days, ask your doctor about the above.