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Doctor insights on: How Many Allegra Can I Take

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Can I take allegra 120 twice a day.

Can I take allegra 120 twice a day.

Most likely: But this would make side effects more likely - dry mouth and eyes for example, perhaps sedation / tiredness. Might think of mixing medicines from different classes if bad allergies are the issue. A primary care provider can help in this regard. ...Read more

Dr. Julie Abbott
360 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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How much allegra (fexofenadine) can I take?

How much allegra (fexofenadine) can I take?

Allegra (fexofenadine): Hello. The normal dose for Allegra (fexofenadine) is 180 mg per day for an adult. Check with your pharmacist for other options if you feel this medication at that dose isn't helpful. There are other otc meds you could try. ...Read more

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Can I take allegra (fexofenadine) with singular?

Can I take allegra (fexofenadine) with singular?

Absolutely: Their mechanisms of action are totally different and even somewhat complementary. ...Read more

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Can I take allegra (fexofenadine) if im on loratabs?

Can I take allegra (fexofenadine) if im on loratabs?

Loratadine / lorabid: The first is an antihistamine, the second an antibiotic. In either case it should be ok, but would speak to your doctor to clarify so that you are not taking double meds when not necessary, as Allegra (fexofenadine) is also an antihistamine. ...Read more

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How long does it take for allegra's effects to begin?

How long does it take for allegra's effects to begin?

Pretty Quickly: Allegra (fexofenadine) and most otc antihistamines has its effect within the first 30 -60 minutes. ...Read more

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What happens if I take too much allegra (fexofenadine)?

Nothing: You may either become sedated or it could make you jittery. Overall the otc allergy medications are very safe and you would have to take many to have any significant side effects. ...Read more

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Can I take allegra (fexofenadine) and claritanl together?

Can I take allegra (fexofenadine) and claritanl together?

Yes, but why: Both Allegra and Claritin (loratadine) are new generation antihistamines used to treat allergies. If symptoms are so severe that both medications are needed, see an allergist for a better treatment plan. However, there is no drug interaction if both are taken together at usual doses. ...Read more

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Can I take anything else on top or allegra (fexofenadine)?

Can I take anything else on top or allegra (fexofenadine)?

Zyrtec (cetirizine): If you mean "on top" of allegra, (fexofenadine) or in addition to Allegra (fexofenadine) to reduce itching I would recommend zyrtec. Allegra (fexofenadine) in the am and zyrtec at night. Zyrtec may cause drowsiness so be careful. ...Read more

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What if I take two allegra (fexofenadine) d, is this safe?

Double dosing: Many over-the counter medications are provided at 1/2 the prescription dose. For example, otc Pepcid (famotidine) is 20mg, whereas the prescribed dose is usually 40 mg. This general principle does not apply to all medications and Allegra-D is a good example. Double dosing the pseudofed in this medication could be dangerous. Always ask the pharmacist about safety before double dosing any otc medications. ...Read more

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Are there people who should not take allegra (fexofenadine)?

Are there people who should not take allegra (fexofenadine)?

Some: Pku patients: Allegra (fexofenadine) odt contains phenylalanine, other Allegra (fexofenadine) formulations are ok.
Pregnancy: it's category c, so pregnant women should avoid and use category b
kidney failure: since Allegra (fexofenadine) is excreted by kidneys, a lower dose is used
previous adverse reaction to allegra (fexofenadine). ...Read more

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How many days does it take for allegra (fexofenadine) to work?

How many days does it take for allegra (fexofenadine) to work?

Hours: Allegra (fexofenadine) and most oral antihistamines will start to work within an hour or so. It does not take days for these medications to work. ...Read more

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How long does allegra (fexofenadine) medication take to expire?

How long does allegra (fexofenadine) medication take to expire?

Read the label: There is considerable debate about the accuracy of label expiration dates. However, as a general rule, it is best to adhere to what the label states is the expiration date. This is especially true of liquid medication. ...Read more

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How long does it take allegra (fexofenadine) to leave your system?

Antihistamines: The antihistamines Allegra (fexofenadine), Claritin (loratadine), and zyrtec (cetirizine) can last in your body for more than a week. Most allergists want these medications discontined for a week before they perform skin testing. Some persons are 'slow-metabolizers' and these drugs can be in your system much longer. ...Read more

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Can I take more then 1 allegra (fexofenadine) a day? One isn't enough.

Can I take more then 1 allegra (fexofenadine) a day? One isn't enough.

Depends: If it is the Allegra (fexofenadine) 12 hr formula, you take it twice daily and the 24 hr formula once a day, just as it says on the package. If you feel you need more rx, then you should see your primary doctor, an allergist, or an otolaryngologist for more direction on how to treat your allergies. There are many more medication options plus allergy testing and immunotherapy can be offered. ...Read more

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What should I do if I accidentally take too much allegra (fexofenadine)?

Stop taking it.: The half life of Allegra (fexofenadine) is 14.5 hours in normal individuals. It is metabolized mainly through the liver and GI tract so if you have liver disease it may be metabolized slower. This means that in a normal individual about half of the medication is left after 14.5 hours. ...Read more

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Can you take too much allegra (fexofenadine)? What would the symptoms be?

Can you take too much allegra (fexofenadine)? What would the symptoms be?

Yes: Any medication can cause problems if taken in excess. Though I am not familiar with specific symptoms regarding Allegra (fexofenadine) overdose, most of the time, patients will have vomiting, abdominal pain, or headaches. I would imagine that liver problems might occur with too much Allegra (fexofenadine) as it is a medication that is broken down by the liver. Bottom line: don't do it. ...Read more

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What if I accidentally take two allegra (fexofenadine) d tablets within 24 hours?

Watch: If you took 2 of 180mg tab, please have someone watch for you the following signs: headache, vomiting, dizziness (2%), fever, pain, drowsiness etc, and contact your md immediately. ...Read more

Dr. Michael Finkelstein
382 Doctors shared insights

Allegra (Definition)

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