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Doctor insights on: Cetirizine Vs Fexofenadine

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Which is best zyrtec allegra (fexofenadine) claranex?

Which is best zyrtec allegra (fexofenadine) claranex?

Depends: All 3 of the mentioned new generation antihistamines (zyrtec, allegra, (fexofenadine) clarinex) are effective for treating allergic rhinitis and hives. What's interesting is that each individual person may respond better to one over the other. While every allergist probably has his/her favorite, truth is...They all work. If not happy with one, try a different one! ...Read more

Dr. Howard Schneider
359 Doctors shared insights

Fexofenadine (Definition)

Fexofenadine is an antihistamine which is used to treat allergies such as hayfever, and hives. It can be taken once or twice a day. It is a second generation antihistamine and does not cause as much drowsiness as other antihistamines such as Diphenhydramine (benaryl) or chlorpheniramine. Always be careful about drowsiness with any antihistamine especially if driving ...Read more


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Can I take zyrtec and allegra (fexofenadine) together?

Can I take zyrtec and allegra (fexofenadine) together?

Not advisable: I would not take both at the same time because these medications do the same thing and can have additive effects if used together. They are both antihistamines for the treatment of allergies. If one of these alone is not helping, sometimes switching to the other one is helpful. If none of these remedies work, then consultation with your doctor or allergist would be appropriate. ...Read more

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What's the difference between zyrtec and allegra (fexofenadine)?

What's the difference between zyrtec and allegra (fexofenadine)?

Different molecules: Zyrtec (cetirizine) is an antihistamine called ceterizine and Allegra is fexofenadine. They both block histamine type 1 receptors on cells and diminish the allergic reaction. Overall, they have the same effect for people, but some people prefer one more than the other based on their personal responses to the rx. ...Read more

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Is it ok to take a zyrtec after taking a allegra (fexofenadine)?

NO: Two antihystamines, not recommended. Take maximum dose of one and that is it! ...Read more

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What happens if I take four allegras (fexofenadine) and one zyrtec?

What happens if I take four allegras (fexofenadine) and one zyrtec?

Allergy meds: Hello. Allergy medication like zyrtec, Allegra and Claritin (loratadine) help with the symptoms of allergy. The dose for an adult is 180 mg for Allegra and 10 mg for zyrtec. If you take these meds on the same day, an increase in dryness as well as sedation will likely occur. Especially 4 Allegra and 1 zyrtec. There are other medications to help with your allergies. See your doctor. ...Read more

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Can I take allegra (fexofenadine) in the morning and zyrtec at night?

See your doctor: This is a high dose of antihistamines and should be best directed by an allergist. Sometimes the high doses are mandated to treat certain conditions, but not seasonal allergies. You should consult an allergist about your symptoms for the best way to treat them. ...Read more

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Is it safe to take allegra (fexofenadine) and zyrtec at the same time?

Is it safe to take allegra (fexofenadine) and zyrtec at the same time?

Allergy meds: Hello. Allergy medication like zyrtec and Allegra (fexofenadine) help with the symptoms of allergy. The dose for an adult is 180 mg for Allegra (fexofenadine) and 10 mg for zyrtec. If you take both on the same day, an increase in dryness as well as sedation will likely occur. There are other medications to help with your allergies. Instead of taking these two medications, see your doctor for other options. ...Read more

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Can I mix allegra (fexofenadine) & zyrtec for my allegy relief if allegra (fexofenadine) alone is not enough?

Can I mix allegra (fexofenadine) & zyrtec for my allegy relief if allegra (fexofenadine) alone is not enough?

You could, but: They do exactly the same thing so taking both is just like taking a double dose of one. Instead, you should try something from a different medication category, like a prescription nasal steroid spray. ...Read more

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What is better antihistamine Cetirizine or Fexofenadine?

I like Cetirizine: My personal preference is Zyrtec (cetirizine) however both have similar effects. Allegra (fexofenadine) could be considered the least sedating out of all the OTC antihistamines. ...Read more

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What is the difference between zyrtec and allegra (fexofenadine) d allergy?

What is the difference between zyrtec and allegra (fexofenadine) d allergy?

Decongestants: Most allergy medicines contain antihistamines, decongestants or a combination of the two. Antihistamines help runny, watery or itchy nose or eyes. Decongestants help congestion and stuffiness. Allegra, claritine and zyrtec are pure antihistamines. Allegra d, Claritin (loratadine) d and zyrtec d contain pseudo Ephedrine (sudafed).). 'd' stands for decongestant. At night it can keep you awake. ...Read more

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Is allegra (fexofenadine) or zyrtec safer? Which one has no cardiac effects at all?

Is allegra (fexofenadine) or zyrtec safer? Which one has no cardiac effects at all?

Allegra (fexofenadine) safer: Zyrtec causes sedation & slows reaction time in about 8% of users. Allegra (fexofenadine) does not. In high doses zyrtec can have adverse effects on cardiac rate & rhythm through its mild effects as an anticholinergic agent. Not so with allegra (fexofenadine). The parent compound of allegra (fexofenadine), terfenadine marketed as seldane, caused rare but serious heart rhythm problems. Allegra (fexofenadine) does not cause these problems at all. ...Read more

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I have daily hive break outs and use Allegra (fexofenadine) but I also have anxiety...could the Allegra (fexofenadine) be exacerbating my anxiety? Is Zyrtec better for anxiety?

I have daily hive break outs and use Allegra (fexofenadine) but I also have anxiety...could the Allegra (fexofenadine) be exacerbating my anxiety? Is Zyrtec better for anxiety?

Allegra (fexofenadine) vs Zyrtec: Allegra (fexofenadine) does not commonly cause or worsen anxiety. That said it can cause problems when taken in combination with other meds. It might be worth trying Zyrtec to see if there is any difference in your anxiety. Talk to your doctor about it and see what is the best option. Some common SE of Fexofenadine are:
headache
dizziness
diarrhea
vomiting
pain in the arms, legs, or back. ...Read more

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Which works best for dermographia, fexofenadine, loratidine, or cetirizine?

Cetirizine plus. ..: I think that of the otc antihistamines, Cetirizine is the most effective. However, I would combine this with Famotidine (pepcid) to block additional histamine receptors that are also present in your skin. ...Read more

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What's best for allergic cough-oxomemazine, cetirizine, loratidine or fexofenadine?

What's best for allergic cough-oxomemazine, cetirizine, loratidine or fexofenadine?

Post-nasal drips?: If the cough is from post-nasal drips, then I prefer using cetirizine or fexofenadine. A better option would be a nasal steroid. However if the cough is from a sinus infection, you may then need an antibiotic; from asthma, you will need asthma medications. Best to see a doctor. ...Read more

Dr. John Chiu
569 Doctors shared insights

Cetirizine (Definition)

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


Dr. John Chiu
549 Doctors shared insights

Zyrtec (Definition)

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