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Doctor insights on: Diphenhydramine Sedating Antihistamine

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If i take Benadryl (diphenhydramine) before getting on a plane, will the sedation from it help with my plane anxiety?

If i take Benadryl (diphenhydramine) before getting on a plane, will the sedation from it help with my plane anxiety?

Causes drowsiness: Might suggest this be dealt with like one handles stage fright. Try a beta-blocker like propanalol or timolol. Another choice, alprazolam, which could keep you more awake. Talk to your doc, as these approaches are all generic and relatively cheap. ...Read more

Dr. John Chiu
1,011 doctors shared insights

Diphenhydramine (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


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I am taking Benadryl (diphenhydramine) with minimal side effects only light sedation. Going to try hydroxyzine. Will I get more side effects than Benadryl (diphenhydramine)?

I am taking Benadryl (diphenhydramine) with minimal side effects only light sedation. Going to try hydroxyzine. Will I get more side effects than Benadryl (diphenhydramine)?

Hydroxzine: It depends upon the dose you were taking. Benedryl is a antihistamine that is usually very sedating. If you were on a small dose of benedryl and now u You are going on a large dose of Hydroxzine you may have more sedation. ...Read more

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My son is scheduled for dental work with sedation tomorrow & has to fast from tonight. Is it safe to give Benadryl (diphenhydramine) in the morning for motion sickness?

My son is scheduled for dental work with sedation tomorrow & has to fast from tonight. Is it safe to give Benadryl (diphenhydramine) in the morning for motion sickness?

Not our decision: If your son is being put to sleep for his treatment, the medication may interact with the general anesthetic. The doctor rendering the treatment must make this decision. Call them. ...Read more

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I seem to have developed an allergy to our new dogs. Tried several antihistamines but Benadryl (diphenhydramine) works best. Can i take on a regular basis?

I seem to have developed an allergy to our new dogs.  Tried several antihistamines but Benadryl (diphenhydramine) works best. Can i take on a regular basis?

Allergy: Remember the best treatment is avoidance and we have the same problem. I'd sacrifice to be with my dogs too, hehehe. If you can tolerate Benadryl (diphenhydramine) and it's the only thing that works, you can take it regularly, but remember, it can make you sleepy. Have fun with the dogs, i hope you will develop tolerance. ...Read more

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Have you ever heard of anyone w/true allergy to benadryl (diphenhydramine)? Would this allergy be likely to turn serious? How can someone be allergic to antihistamines?

Have you ever heard of anyone w/true allergy to benadryl (diphenhydramine)? Would this allergy be likely to turn serious? How can someone be allergic to antihistamines?

Yes: Good question. It is very rare but does happen. Sometimes they are not allergic to the Diphenhydramine but the dyes and fillers used to make the medicine. But people have also had reactions to dye free benadryl (diphenhydramine). You can develop an allergy to anything. I have seen people with Benadryl (diphenhydramine) allergy who could take other antihistamines such as hydroxyzine. ...Read more

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What are long term side effects of diphenhydramine antihistamines and do they lose effectiveness over time? K

What are long term side effects of diphenhydramine antihistamines and do they lose effectiveness over time?
K

Minimal: Diphenhydramine is the active ingredient in Benadryl (diphenhydramine) 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

Benadryl (Definition)

Diphenhydramine is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


Dr. Paul Carter
601 doctors shared insights

Antihistamine (Definition)

Sedating and non-sedating antihistamines prevent and treat allergic reactions, and are ...Read more