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Doctor insights on: Non Drowsy Benadryl

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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

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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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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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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Why does Benadryl (diphenhydramine) causes drowsiness?

Why does Benadryl (diphenhydramine) causes drowsiness?

Enters the brain: The molecular structure of benedryl allows it to enter the brain where it can interfere with the chemicals that transfer messages between brain cells. In most people it causes drowsiness, in some it will cause the opposite. Newer antihistamines like loritadine & fexofinadine have molecular structures that prevent entry into the brain, so they don't make you drousy. ...Read more

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When does Benadryl (diphenhydramine) drowsiness wear off?

When does Benadryl (diphenhydramine) drowsiness wear off?

Benadryl (diphenhydramine): Depending on age, weight, how much you take the effect of drowsiness can wear off at different intervals. Also depends on what other meds you take, including other otc such as coffee. ...Read more

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Benadryl (diphenhydramine) has effect on me -- drowsiness?

Benadryl (diphenhydramine) has effect on me -- drowsiness?

Common effect: Benedryl is one of the most common products in over the counter sleep aids. It works quickly & well for allergies, but if you read the small print on most bottles it warns you of this effect. Occasionally some people get the opposite effect & get hyper on it, but that is far less common than the sedation. It actually enters your brain & messes with the neuro-transmitters. ...Read more

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How long does drowsiness generally last after a benadryl (diphenhydramine)?

Four to six hours: The half life of Benadryl (diphenhydramine) is about four to six hours and usually the sedation will wear off within that time frame. As one continues to use it often a certain amount of tolerance develops and less sedation is appreciated. Studies have shown that its effect on brain function still continues despite less sedation. ...Read more

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How long does Benadryl (diphenhydramine) keep you drowsy?

Benadryl (diphenhydramine): Most people it will last 8 hours or so but I have seen people who still feel groggy 12 hours later or more ...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


Benadryl (Definition)

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