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Doctor insights on: Can I Take Zyrtec At Night I Claritin In The Morning For Allergies

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Can I take Claritin (loratadine) in the morning and zyrtec at night. Allergies are just that bad..

Can I take Claritin (loratadine) in the morning and zyrtec at night. Allergies are just that bad..

Should be OK: I have also found that seasonal allergies can benefit from a sinus rinse using a Neilmed (for example), a little teapot like container with saltwater. If you take the antihistamine in the am and pm I do not think they have to be the same brand. ...Read more

Dr. John Chiu
2,638 Doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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I take Zyrtec in the morning and Claritin (loratadine) at night and that usually helps but my allergies are so much worse after moving to Kentucky from New York.

I take Zyrtec in the morning and Claritin (loratadine) at night and that usually helps but my allergies are so much worse after moving to Kentucky from New York.

Several: The treatment of allergies involves three general concepts: avoidance, medicine and immunotherapy. The medicines include antihistamines, nasal steroids and sometime leukotriene blockers. An allergist can help guide one in making the right treatment decisions. ...Read more

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I took a generic allergy medicine at 11am this morning containing loratadine but it has not helped. Could I take a Zyrtec (cetirizine) now or should I just wait?

I took a generic allergy medicine at 11am this morning containing loratadine but it has not helped. Could I take a Zyrtec (cetirizine) now or should I just wait?

Pharmacist: Since almost twelve hours have elapsed it probably will not be problematic to take the zyrtec (cetirizine) tonight even though these are once daily medications. Your pharmacist is quite qualified to answer this type of question for you. ...Read more

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I take zyrtec for skin allergies. Is it safe to take 2 Zyrtec, or 1 zyrtec, 1 Claritin (loratadine) @ night? I get no relief with 1 zyrtec.

I take zyrtec for skin allergies. Is it safe to take 2 Zyrtec, or 1 zyrtec, 1 Claritin (loratadine) @ night? I get no relief with 1 zyrtec.

Zyrtec (cetirizine): antihistamine OTC. The maximum recommended dose of Zyrtec (cetirizine) is 10mg per day. The interesting fact that studies have been shown that there is no advantage between 10 mg to the 20 mg dose of Zyrtec (cetirizine). Talk to your dermatologist for more information. Hope it helps. ...Read more

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Zyrtec, claritin, singular, and allegra don't work on my 7 yr olds allergies at night (nasal drip & cough) only benedryl. Can he take it every night?

Zyrtec, claritin, singular, and allegra don't work on my 7 yr olds allergies at night (nasal drip & cough) only benedryl. Can he take it every night?

Dose?: Zyrtec & Benadryl (diphenhydramine) are very similar. He should get similar relief if he's taking the right dose for his weight. Benadryl (diphenhydramine) will make him more drowsy. You should talk to his doctor about an rx nose spray to control allergies like Flonase or nasonex. ...Read more

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I get headaches from allergies. Can I take Claritin (loratadine) and zyrtec at the same time? Claritin (loratadine) didn't work alone when I traveled away from home.

I get headaches from allergies. Can I take Claritin (loratadine) and zyrtec at the same time? Claritin (loratadine) didn't work alone when I traveled away from home.

Yes, but: Both Claritin (loratadine) and zyrtec (cetirizine) are new generation antihistamines. While there is no harm to using them together, there is likely no added benefit either. The most effective treatment for nasal allergies is the topical nasal steroid sprays such as qnasl, flonase, veramyst, nasonex, (mometasone) etc if a person doesn't have relief with an antihistamine alone. ...Read more

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I take OTC allergy meds everyday. I heard it can be helpful to switch OTC allergy meds every 3-4 months. Is this true? Zyrtec, Claritin, (loratadine) Allegra?

I take OTC allergy meds everyday. I heard it can be helpful to switch OTC allergy meds every 3-4 months. Is this true? Zyrtec, Claritin, (loratadine) Allegra?

Similar medications: The medications you mentioned have the same mechanism of action. Everyone's body may have a different response to medications. Some studies have indicated that tolerance to antihistamines does not occur however switching to find which works best for you is reasonable. The best medication = the one with lowest side effects and works! Consider saline and nasal steroid spray or allergy testing. ...Read more

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Hello, am I able to take OTC claritin (loratadine) or zyrtec for allergies during pregnancy?

Hello, am I able to take OTC claritin (loratadine) or zyrtec for allergies during pregnancy?

Claritin (loratadine): We always recommend to avoid meds if possible, but if you have to Claritin (loratadine) should be ok ...Read more

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I have very bad seasonal allergies. I have tried everything, Zyrtec, Claritin (loratadine) and Allegra. Nothing works, what can I take?

I have very bad seasonal allergies. I have tried everything, Zyrtec, Claritin (loratadine) and Allegra. Nothing works, what can I take?

See an allergist: If none of these OTC meds worked, unlikely that anything else will, you need to be evaluated, good history and physical examination. See your doctor first for initial evaluation, who would refer you or check aaaai. Org or acaai. Org for an allergist in your area, best wishes ...Read more

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My allergies are unbearable today. I take Zyrtec and Flonase daily and they did nothing. I took Allegra too with no relief, can I also take Claritin (loratadine)?

My allergies are unbearable today. I take Zyrtec and Flonase daily and they did nothing. I took Allegra too with no relief, can I also take Claritin (loratadine)?

You can, but: It is unlikely to add additional coverage after taking both Zyrtec and Allegra (fexofenadine). It is important to understand that blocking histamine receptors is not a cure-all for allergy. There are many potential symptoms that may be driving you crazy and knowing more about them will help a physician to recommend short term therapy for short term relief. See Allergist and consider virtual consult if needed. ...Read more

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Is it safe to take zyrtec or Claritin (loratadine) while pregnant? I'm 37 years old, 6 weeks pregnant and have seasonal allergies.

Is it safe to take zyrtec or Claritin (loratadine) while pregnant? I'm 37 years old, 6 weeks pregnant and have seasonal allergies.

Both: Both zyrtec and Claritin (loratadine) are classified by the fda (the U.S. Food and drug administration) as pregnancy category b drugs, meaning there is no known risk to pregnant women or their babies.

So there is no evidence that either one is harmful. Let your OB doctor know all the drugs and supplements you are taking. Best wishes with your pregnancy and congratulations! ...Read more

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I'm currently living in Paraguay and I take Zyrtec and Flonase everyday for allergies. This week I added a pill with Sudafed and Claritin in it to clear up extra sinus trouble from a cold, but now I'm having stomachaches and trouble sleeping. Is the pseud

I'm currently living in Paraguay and I take Zyrtec and Flonase everyday for allergies. This week I added a pill with Sudafed and Claritin in it to clear up extra sinus trouble from a cold, but now I'm having stomachaches and trouble sleeping. Is the pseud

Pseudoephe: Insomnia is a common side effect from pseudoephedrine and I have not recommended it use for at least a decade. Be sure to aim the Flonase towards the sides of the nose and not in the center and see if this works better. If not, time to see a doctor to see if you may have a sinus infection. ...Read more

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Which is better for allergies zyrtec or claritin (loratadine)?

Zyrtec (cetirizine): Zyrtec (cetirizine) has more anti-allergy or anti-inflamatory effects than clariten (loratidine) and is often better for most allergic symptoms. It does cause drowsiness in some patients. Antihistamines work best when taken at bedtime if you are taking them on a daily basis - as in a pollen allergy or allergy to a pet that lives in your house. ...Read more

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In suffering pretty bad from allergies right now. Should I switch from Claritin (loratadine) to Zyrtec tomorrow?

Yes: Yes, you should! Zyrtec in my clinical experience works better, the trade off is that it's a little more sedating than Claritin. If sleepiness is a problem, then take the Zyrtec at night before bed. Hope this helps! You may need a nasal spray if this doesn't do the trick. Hope this helps! ...Read more

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For children's allergies should you combine zyrtec and claritin (loratadine)?

For children's allergies should you combine zyrtec and claritin (loratadine)?

Pick one: While both zyrtec (cetirizine) and Claritin (loratadine) are approved for treatment of allergies in children, it is rarely necessary to use both at the same time. In my experience, Claritin works for many and zyrtec works for most patients. While there is little harm to combining these, it doesn't add to the effectiveness. ...Read more

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Will something like Claritin (loratadine) or zyrtec relieve cat allergy symptoms?

Possible: Oral antihistamines are used to treat itchy nose, eye and sneezing. So if one is experiencing these symptoms use of anti histamines would be reasonable. ...Read more

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How to treat mild cat allergies? Is just taking Claritin (loratadine) or zyrtec helpful enough?

Depends: If your symptoms are adequately controlled, then yes. However, if one of your symptoms is nasal congestion, then you nay want to try Claritin d, Allegra d, or zyrtec d. Avoidance of cats is best, if possible. ...Read more

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I noticed allergies has 180 mg where as Claritin (loratadine) and Zyrtec says 10mg. Does this mean allergra is stronger?

Yes and no: The mg per se means nothing, it is the biologic or chemical activity that matters. For example, a ton of TNT will be far less powerful than a pound of uranium when used as an explosive. On the other hand, I personally believe that Allegra overall has a little more anti-histamine activity than Claritin (loratadine) but not necessarily Zyrtec. ...Read more

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What to do about really bad allergies! Zyrtec, semprex and Claritin (loratadine) d not helping!?

See an allergist: See an allergist. There are other options including allergen immunotherapy. ...Read more

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What is the difference, if any, between zyrtec, claritin, (loratadine) or allegra in their effectiveness for springtime allergies?

Same: Each of the medicines work for some people; others for other people. No one medicine works for everyone all of the time. Sometimes you have to try different ones to see which one works best for you. ...Read more

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My Dr. Recom. Claritin (loratadine) D for my bad allergies and sinusitis. I think it's not helping and I'm not reacting well to it. Ok to stop? Start zyrtec again?

My Dr. Recom. Claritin (loratadine) D for my bad allergies and sinusitis. I think it's not helping and I'm not reacting well to it. Ok to stop? Start zyrtec again?

Whatever works better: Some people respond differently to different medications, although in your case I recommend that you would see an allergist for evaluation, check out aaaai. Org or acaai. Org for an allergist in your area, good luck ...Read more

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I just took a claritin (loratadine) about 6 hours ago and just took a zyrtec is that okay? Also I'm not sure if I have a cold or allergies, I think its both : (. I've been using the zicam hopefully it will make it go away. What do u suggest? Thank u so much

See your doctor: Or an allergist, seems your symptoms need more control and OTC drugs aren't working. No harm of combining claritin (loratadine) and zyrtec 6 hours apart, but don't repeat without doctor's advice. Zicam is controversial and the FDA issued a warning about using the product and there was a recall. Check aaaai. Org or acaai. Org for an allergist in your area, good luck ...Read more

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What can I do for a grass allergy? Claritin (loratadine)? Zyrtec?

What can I do for a grass allergy? Claritin (loratadine)? Zyrtec?

Various treatments: In general allergy treatment involved avoidance of allergen, use of medications (oral antihistamines, nasal steroids) and allergen immunotherapy. ...Read more

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Have taken allegra, claritin, (loratadine) and zyrtec to help with my allergies this season. None of them have relieved my symptoms. Any other OTC for relief?

Have taken allegra, claritin, (loratadine) and zyrtec to help with my allergies this season. None of them have relieved my symptoms. Any other OTC for relief?

Nasalcrom (cromolyn): Over the counter options include Nasalcrom nasal spray. Some people find neil med sinus rinses are helpful as well. Others find that Allegra d or zyrtec d pills can help. If these do not help see your doctor to get some prescription nose sprays ...Read more

Dr. Ashraf Abdel Azeem
540 Doctors shared insights

Claritin (Definition)

Claritin is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


Dr. John Chiu
575 Doctors shared insights

Cetirizine (Definition)

Ceftirizine is the generic name of an antihistamine previously marketed under the ...Read more