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A member asked:

Would it be wise to take benadryl (diphenhydramine) 50mg before ct scan with contrast just incase of allergic reaction?

A doctor has provided 1 answer
Dr. John Chiu answered

Talk to radiologist: but it will not likely help to prevent a true anaphylactic reaction by itself although it will not hurt either.

Answered 12/12/2019

3.3k views

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Related Questions

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In the event of a hives-only, but still troubling, allergic reaction, what can someone allergic to Benadryl (diphenhydramine) take? Don't wanna use an epipen for hives.

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Is it safe to take Benadryl (diphenhydramine) and Zyrtec together? I was put on Zyrtec for an allergic reaction with steroids for swelling and it's keeping me awake.

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I don't have benadryl (diphenhydramine) but I do have Claritin d. I'm having an allergic reaction and it causes welts and itching. Can I take the Claritin to get the same effect benadryl (diphenhydramine) has?

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A member asked:

Other than benadryl, (diphenhydramine) what else can I take to stop an allergic reaction from getting worst?

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I'm having n allergic reaction to ambian can I take benadryl (diphenhydramine) to help?

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