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.
Do not take this drug more than your prescribed dosage. A maximum amount of Benadryl intake within 24 hours is only 300 mg and must not exceed beyond that. Donât take Benadryl if you are recently on monoamine oxidase inhibitors (MAOI) for the last 14 days. A severe drug-to-drug interaction may occur, which may cause serious side effects. Do not drive, operate machines, and perform any other activities that need careful attention as soon as you take this drug.