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Doctor insights on: Oral Antihistamine

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Dr. Michael Gabor
203 Doctors shared insights

Oral Antihistamine (Overview)

Oral antihistamines such as diphenhydramine (Benadryl) or hydroxyzine (Atarax, Vistaril) can help to reduce itching, especially in allergic-type reactions.


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Can I take oral antihistamine with me on international trip in unopened box?

Can I take oral antihistamine with me on international trip in unopened box?

Yes: You should be able to take them with you but you might want to check with the airline or a travel agent about peculiar laws the country may have. Any prescriptions you may have, however, will most likely be ok if in a package (bottle/box) with your name and the doctor's name - that would be protected by un charter and the us embassy. Narcotic prescriptions may cause some issues however. ...Read more

Dr. Michael Gabor
203 Doctors shared insights

Oral Antihistamine (Overview)

Oral antihistamines such as diphenhydramine (Benadryl) or hydroxyzine (Atarax, Vistaril) can help to reduce itching, especially in allergic-type reactions.


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What is the best allergy treatment for eyes I mean the best eye drops for allergy. Not over-the-counter drugs. Oral antihistamine alone not helping.

What is the best allergy treatment for eyes I mean the best eye drops for allergy. Not over-the-counter drugs. Oral antihistamine alone not helping.

Patanol (olopatadine): I prefer patanol (olopatadine) drops. There are others which are similar. The important thing is to wash your face with a cool wash cloth before applying to remove any lingering allergens from your facial skin and around your eyes. This helps my patients a great deal. If you're not better with drops see an allergist for testing, you may want to consider allergy shots. ...Read more

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Improving Oral Health (Checklist)

Keep sugars and sticky starches to a minimum
Once
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Any effective OTC alternatives to oral antihistamines?

Antihistamine picks: To answer this we need to know what symptom you want the antihistamine to treat. If you want to stop itching, oral steroids can be used, they are very strong and work well but have loads of side effects and dangers. For a runny nose from allergies, nasal antihistamine or corticosteroid sprays are more effective; montelukast can also be tried. None of these are otc, though. ...Read more

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Treating Oral Thrush (Checklist)

Dab nystatin liquid onto the oral thrush, if approved by the doctor
4x day
Sterilize bottles, nipples, and pacifiers in boiling water
2x week
Look for thrush on the baby's inner cheeks and gums
2x week
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What are the side effects of using antihistamines?

What are the side effects of using antihistamines?

Few: There are no long term adverse effects from using antihistamines. Short term sides effects are typically from older antihistamines such as Benadryl (diphenhydramine) that can cause drowsiness and delayed reaction time. New generation antihistamines such as claritin, clarinex, zyrtec, xyzal and Allegra are generally very well tolerated. No dependence and few if any drug interactions. ...Read more

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I had grapefruit, then took 10mg of cetirizine about an hour or so later. I had no idea grapefruit could interact with antihistamines. Am I in danger?

I had grapefruit, then took 10mg of cetirizine about an hour or so later. I had no idea grapefruit could interact with antihistamines. Am I in danger?

No.: There is a protein in grapefruit that can inhibit one of the systems in the body that metabolize drugs. So, this may increase the potency of certain family of drugs, by decreasing the breaking down of the drug in the body. The two antihistamines that were in this category have been removed from the market, so there is probably a small, but clinically insignificant, effect. Don't worry. ...Read more

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Can I take oral antihistamine with me on international trip in unopened box?

Yes: You should be able to take them with you but you might want to check with the airline or a travel agent about peculiar laws the country may have. Any prescriptions you may have, however, will most likely be ok if in a package (bottle/box) with your name and the doctor's name - that would be protected by un charter and the us embassy. Narcotic prescriptions may cause some issues however. ...Read more

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Can I take zaditor (ketotifen) with oral antihistamine?

Can I take zaditor (ketotifen) with oral antihistamine?

Yes: Zaditor (ketotifen) eye drop has antihistamine and mast cell stablizing qualities. There is no harm in taking an oral antihistamine at the same time. ...Read more

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When do I need to take and oral antihistamine for itching as opposed to a topical cream?

When do I need to take and oral antihistamine for itching as opposed to a topical cream?

Itchy Skin: When the area of itch is too significant for a small amount of cream to cover. And there is nothing wrong with doing both. Itching can be an internal issue or an external issue. Antihistamines help to drastically reduce itch and are longer lasting, depending on the topical cream/ointment used. ...Read more

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Skin between my fingers is chapped & flaky due to antibacterial soap use. I scratch in sleep so never heals. How to heal? Oral antihistamine's useless

Skin between my fingers is chapped & flaky due to antibacterial soap use. I scratch in sleep so never heals. How to heal? Oral antihistamine's useless

Rash Between Fingers: Erosio interdigitalis blastomycetica is a skin condition caused by a Candida Albicans infection, characterized by an oval-shaped area of skin on the web between and extending onto the sides of the fingers. Another possibility is hand eczema. Treatment depends your diagnosis. See you local dermatologist for the correct diagnosis and therapy. ...Read more

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Can I take an additional oral antihistamine with Azelastine nasal spray? For chronic rhinitis, I find the affects of the spray wear off after 5 hours

Can I take an additional oral antihistamine with Azelastine nasal spray? For chronic rhinitis, I find the affects of the spray wear off after 5 hours

Yes: There is no problem in using both. Have you tried a combination with both a nasal steroid and nasal azelastine? Consider seeing an allergist. ...Read more

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What is the best allergy treatment for eyes I mean the best eye drops for allergy. Not over-the-counter drugs. Oral antihistamine alone not helping.

Patanol (olopatadine): I prefer patanol (olopatadine) drops. There are others which are similar. The important thing is to wash your face with a cool wash cloth before applying to remove any lingering allergens from your facial skin and around your eyes. This helps my patients a great deal. If you're not better with drops see an allergist for testing, you may want to consider allergy shots. ...Read more

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Any alternatives to oral antihistamines?

Any alternatives to oral antihistamines?

Depends: It depends on what symptoms you are treating. Assuming that you are treating seasonal allergy symptoms, you could also try prescription nasal sprays, singulair, (montelukast) or allergy shots. ...Read more

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Any effective OTC alternatives to oral antihistamines?

Antihistamine picks: To answer this we need to know what symptom you want the antihistamine to treat. If you want to stop itching, oral steroids can be used, they are very strong and work well but have loads of side effects and dangers. For a runny nose from allergies, nasal antihistamine or corticosteroid sprays are more effective; montelukast can also be tried. None of these are otc, though. ...Read more

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Are alternatives to oral antihistamines more effective or less effective?

Are alternatives to oral antihistamines more effective or less effective?

Antihistamine picks: To answer this we need to know what symptom you want the antihistamine to treat. If you want to stop itching, oral steroids can be used, they are very strong and work well but have loads of side effects and dangers. For a runny nose from allergies, nasal antihistamine or corticosteroid sprays are more effective; montelukast can also be tried. For sleep at night, other meds may work better...Etc. ...Read more

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Where can I find a reliable list of 2nd generation (and newer) oral antihistamines available in the US?

Where can I find a reliable list of 2nd generation (and newer) oral antihistamines available in the US?

No long List: The newer oral nonsedating antihistamines available without prescription in the US are: loratadine (Claritin), fexofenadine (Allegra), cetirizine (Zyrtec) and levocetirizine (Xyzal). Desloratadine (Clarinex) is available by prescription. Some of the insurance medication plans will cover some of the above over-the-counter antihistamines. ...Read more

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Should I get arc for IM Benadryl? To use after the epipen? Or is oral better? What is fastest? What other antihistamines could I use?

Should I get arc for IM Benadryl? To use after the epipen? Or is oral better? What is fastest? What other antihistamines could I use?

Benadryl: Use after epipen: in case of a severe allergic reaction, you want to start by epipen, benadryl can be used prior if you can, or after, oral route is just as fine. If no response, the epinephrine should be repeated after 5 minutes of the initial injection, by that time you call 911 or reach emergency, wish you wellness ...Read more

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Can oral antihistamines stop the itchiness from allergies?

Antihistamine: It may help depending on which type of allergic reactions you get and which organ systems are affected. Can you be more specific? ...Read more

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When I take oral antihistamines I get hives over my entire body. Is it possible to be allergic to antihistamines? What can be taken instead?

Unlikely: Each antihistamine is unique, so it is unlikely that you would be allergic to multiple antihistamines. I had one patient who had hives to an antihistamine, and it turned out to be an allergy to a dye.
You should consult with someone familiar with these medications and medication reactions in general, such as an allergist. ...Read more

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Can u suggest some nasal steroids and oral antihistamines?

Can u suggest some nasal steroids and oral antihistamines?

Treatment advice: It is not in our mission here to give specific treatment advice. But, all oral anti-histamines are over the counter. Nasal steroid sprays are universally similar to each other. ...Read more

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Do antihistamines like Benadryl (diphenhydramine) help prevent oral allergy syndrome?

Do antihistamines like Benadryl (diphenhydramine) help prevent oral allergy syndrome?

Probably not: Oral allergy syndrome is usually caused by pollens and sometimes nuts.
Claritin, zyrtec and Allegra (fexofenadine) can help with pollen allergies. But like any other allergy, it is best to stay away from the problem. Have an allergist test you and see what treatment would be best. ...Read more

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Does pollen season make oral allergy syndrome worse despite taking antihistamines?

Does pollen season make oral allergy syndrome worse despite taking antihistamines?

Yes it can: That's why you need to know the triggers well, try to avoid them as much as you can, ask your doctor about keeping an Epipen (epinephrine) handy, just in case a severe reaction develops, see an allergist if you can for complete assessment. Check aaaai. Org or acaai. Org for an allergist in your area, good luck ...Read more

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What are the risks of low-dose oral prednisone taken over 1 or 2 decades? I am a vet with allergies to pets. Antihistamines not effective anymore.

What are the risks of low-dose oral prednisone taken over 1 or 2 decades? I am a vet with allergies to pets. Antihistamines not effective anymore.

It depends how low: If the dose is low it will replace what your adrenal makes. Even at that level it is tough sometimes to get off of it. With high doses bad problems can occur in all areas of your body. Talk to your doctor or get another opinion about what is best. Thank you for your service. ...Read more

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Does mucinex help post nasal drip? I have taken oral antihistamines, masonry and Sudanese and I'm still having really bad post nasal drip as I sleep.

Intranasal steroids: Studies show intranasal steroids are highly effective as monotherapy for allergic rhinitis and more effective than antihistamines but okay in combination.
If you have sinus pressure/cough you may need MD eval for possible acute bacterial rhinosinusitis as well. ...Read more

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Is it ok to take antihistamines with?

With what?: If you are thinking about drinking alcohol, do not do it. Antihistamines might potentiate the effect of alcohol. ...Read more

Dr. Paul Carter
648 Doctors shared insights

Antihistamine (Definition)

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


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