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Doctor insights on: Non Drowsy Antihistamine

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Can a non drowsy antihistamine that had no side effects that I've noticed hurt you if u take 2 pills in 24hrs instead of 2?

Can a non drowsy antihistamine that had no side effects that I've noticed hurt you if u take 2 pills in 24hrs instead of 2?

No: Which antihistamine? Why using it? Sometimes, for chronic urticaria, cetirizine [Zyrtec] is dosed at 3 a day . The official dose of these is 1 a day. Allegra and claritin are also sometimes used at double or triple dose.It is best if you consult a Dr before you take doses higher than usual. ...Read more

Dr. Marsha Davis
425 doctors shared insights

Drowsiness (Definition)

Being tired is common during pregnancy, especially in the first few months and then towards the end. Exercise, rest, and proper diet all may reduce the degree of tiredness that you feel. It may help to take ...Read more


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Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Yes: Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine). The number of people who feel drowsy on Claritin is so low that it is labeled "non-drowsy". But each of us is unique. I have plenty of patients who feel drowsy on claritin, especially petite women. ...Read more

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Zyrtec (cetirizine) makes me very drowsy. Is this common and are there non-drowsy antihistamines that provide as effective allergy relief? Thanks

Zyrtec (cetirizine) makes me very drowsy. Is this common and are there non-drowsy antihistamines that provide as effective allergy relief? Thanks

Yes: This is a common side effect of Zyrtec, but it is different for everyone. If Zyrtec makes you drowsy, you could try the other 2 common anti-histamines instead - Allegra or Claritin (loratadine). Some people have been drowsy with these medicines as well, but others have not. Best wishes. ...Read more

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Are non-drowsy antihistamines such as Claritin (loratadine) effective for treating asthma?

Are non-drowsy antihistamines such as Claritin (loratadine) effective for treating asthma?

Not directly: Claritin is useful to reduce the symptoms of allergies, especially post nasal drip. It should be used with other medications. Mid you are having serious allergic symptoms that worsen your asthma, see an allergist. ...Read more

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Where can I buy Non drowsy Benadryl (diphenhydramine)?

Where can I buy Non drowsy Benadryl (diphenhydramine)?

Oxymoron: Benadryl (diphenhydramine) is Benadryl (diphenhydramine) which is often associated with drowsiness although not everyone is affected to the same extent. ...Read more

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Please let me know if there is anything that contains the same ingredients that Benadryl (diphenhydramine) has but its non drowsy?

Antihistamine: Benadryl (diphenhydramine) is the first generation antihistamine that has anticholinergic property and crosses the blood-brain barrier causing drowsiness. Several other second generation antihistamine works well and does not cause drowsiness like zyrtec, allergra and claritin. ...Read more

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Why most doctors advice two types of anti histamines for urticaria.One that is with drowsy and the other non drowsy.Tnx?

Hives: Because we can't have you sleepy during the day when you have things to do. The non-sedating are best in the day and sedating are best at night. ...Read more

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Dr. Paul Carter
601 doctors shared insights

Antihistamine (Definition)

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