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Doctor insights on: Antihistamines Non Drowsy

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Dr. Anlin Xu Dr. Xu
8 doctors agreed:
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Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Dr. Anlin Xu Dr. Xu
8 doctors agreed:
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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Benadryl (Definition)

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


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Non drowsy Claritin (loratadine) is making me hyper, why?

Non drowsy Claritin (loratadine) is making me hyper, why?

Individual variance: Any medication can produce non-typical effects on some of the population that is not seen in others. Claritin (loratadine) does not seem to cross into the brain in most people, allowing for a lack of sedation for most.However, all of us have some differences in how our body reacts to some medications ant this can be one of them. For you, the medication likely reaches your brain and causes stimulation. ...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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Is non drowsy Claritin (loratadine) ok to take whike breastfeeding?

Yes: This is one of the best tolerated antihistamine preparations for breastfeeding.Transfer into milk is negligible as is effect on milk volume. ...Read more

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Is there anything stronger than claratin or loratadin for allergies? Only non drowsy medications

Is there anything stronger than claratin or loratadin for allergies? Only non drowsy medications

Allergies: good question. Not really taking the drug between 4 to 6 pm helps not the D form) as that is before things bloom adding in a nasal steroid spray (which is otc) in the am also helps. Your doctor could add in singulair (montelukast) at bedtime as well. Bad season this year ...Read more

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Is loratadine like benadryl (diphenhydramine)?

Is loratadine like benadryl (diphenhydramine)?

Kinda mostly: Loratadine is a 'non-sedating antihistamine, ' and Diphenhydramine (/benadryl) is a sedating antihistamine (aka: older / h1 & h2 blocker), so yes, they are close cousins in intended effects--just differ in side effects. ...Read more

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Are there any new, more effective allergy meds than zyrtec, claratin, allegra (fexofenadine)...etc.?

Are there any new, more effective allergy meds than zyrtec, claratin, allegra (fexofenadine)...etc.?

Allergies - hayfever: Everyone is unique and that includes the distribution of histamine receptors that we all have. Thus some anti-histamines work well for some people while other meds don't. It's a matter of finding the right antihistamine for u. Older meds like Benadryl (diphenhydramine) might actually be worth a try. Seeing an allergist would be best as there are new meds just coming out now for allergies (grastek, oralair, Ragwitek ...Read more

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Is Claritin comparable to benadryl (diphenhydramine)?

Is Claritin comparable to benadryl (diphenhydramine)?

Both AH: Both act in similar fashion except that Benadryl (diphenhydramine) causes drowsiness and dry mouth in a much higher percentage of people and it works for just a few hours vs claritin's nearly 24 hours duration of action. ...Read more

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Loratidine non drowsy does it keep you awake?

No: Loratadine is an antihistamine and should not keep one awake. If the antihistamine is paired with a decongestant then there is the potential that this combination could keep one awake. ...Read more

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What are sedating antihistamines for insomnia?

What are sedating antihistamines for insomnia?

Benadryl (diphenhydramine).....: is probably the most readily available sedating antihistamine. It is a common ingredient in over-the-counter (OTC) preparations for sleep, such as Tylenol (acetaminophen) PM -- the PM part is diphenhydramine, the generic name for Benadryl. Another one I like to use is hydroxyzine (also known as Vistaril or Atarax) but that is only available as a prescription, however its metabolite is Zyrtec, which is OTC. ...Read more

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What are non-sedative antihistamines?

What are non-sedative antihistamines?

The newer ones: Antihistamines can cause sedation by entering the brain's tissue and binding to h1 receptors. (called "crossing the blood brain barrier".) that effect is desirable if you are taking an antihistamine for sleep (e.g. Benadryl). The newer antihistamines don't cross the blood brain barrier as much. These include (least to most sedate) fexofenadine (allegra), Cetirizine (zyrtec), loratidine (claritin). ...Read more

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Are there any non sedating anti convulsant drugs?

Are there any non sedating anti convulsant drugs?

Anticonvulsants: Lamictal and Keppra (levetiracetam) are non sedating. It is necessary to know which one will work in a particular type of seizure to decide if they would be appropriate. ...Read more

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Will the non drowsy robitussin (guaifenesin) keep me awake?

Will the non drowsy robitussin (guaifenesin) keep me awake?

No.: It should not keep you awake. It may cause heartbeat irregularities but not wakefulness. ...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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Is zyrtec (cetirizine) more powerful than OTC allergy medicines?

Is zyrtec (cetirizine) more powerful than OTC allergy medicines?

Zyrtec (cetirizine) is OTC: Zyrtec (cetirizine) is otc and is considered a more potent antihistamine than some others. However everyone responds to medication differently. ...Read more

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Dr. Paul Carter
649 doctors shared insights

Antihistamine (Definition)

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


Dr. Marsha Davis
425 doctors shared insights

Drowsiness (Definition)

Drowsiness = feeling sleepy/ feeling ...Read more