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A 32-year-old member asked:

could you advise what allergy pills do you recommend?

1 doctor answer2 doctors weighed in
Dr. Nayla Mumneh
Allergy and Immunology 29 years experience
Allergy meds: All over the counter second generation antihistamines are good: allegra, zyrtec and claritin (loratadine).

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Similar questions

A 33-year-old member asked:

Why is it that allergy pills don't work every time I take one?

2 doctor answers3 doctors weighed in
Dr. Stephen Kimura
Allergy and Immunology 35 years experience
Timing: Antihistamines work by blocking histamine receptors in your body. If the receptors are all full of histamine already (reaction has occurred), then there is nowhere for them to go and it will not make a difference in allergy symptoms. If you take them before exposure to allergens they can block the receptors and you will have less symptoms.
A 39-year-old member asked:

Is it really possible to be allergic to allergy pills?

2 doctor answers4 doctors weighed in
Dr. Thomas Shen
Internal Medicine 29 years experience
Yes: You can become allergic to any drug, including corticosteroids.
CA
A 42-year-old member asked:

Is there something that counteracts allergy pills?

2 doctor answers3 doctors weighed in
Dr. Thomas Shen
Internal Medicine 29 years experience
No: For antihistamines no.
CA
A 33-year-old member asked:

Why is the number of mg of medication different in different allergy pills?

2 doctor answers3 doctors weighed in
Dr. Stephen Kimura
Allergy and Immunology 35 years experience
Different medication: The mg. Amount of a drug will vary amongst the different classes of drugs because they are different compounds. Fexofenadine typically is a 180 mg dose, where loratidine is 10 mg. They are "equivalent" because in studies they block about the same number of histamine receptors and provide equal efficacy.
Dr. Paul Carter
A Verified Doctor commented
A US doctor answered Learn more
The number of mg is simply the weight or mass of the drug. Different drugs have different size molecules and therefore different weights. But one molecule can still only affect one receptor on the cell regardless of how much it weighs. This may be a bit oversimplified, but makes the basic point about how Allegra 180 is roughly the same as Zyrtec 10.
Feb 25, 2012
A 42-year-old member asked:

My allergy pills aren't working what should I do?

1 doctor answer2 doctors weighed in
Dr. Michael Zacharisen
Allergy and Immunology 33 years experience
Allergist can help: The most effective treatment for allergic rhinitis are the topical nasal steroid sprays. They are safe and effective, but require a prescription. Allergy pills are usually antihistamines and only block the effect of histamine. An allergist can assist in finding the trigger of the allergies and give advice on avoidance measures and other medications available.

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Last updated Jul 26, 2013
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