Comparing Allegra vs Zyrtec
Allegra | Zyrtec |
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Allegra (fexofenadine) | Zyrtec (cetirizine) |
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Prescription and OTC
Prescribed for Urticaria, Allergic Rhinitis, Allergies. Allegra may also be used for purposes not listed in this medication guide. |
Prescription and OTC
Zyrtec is an antihistamine that effectively treats allergic reactions such as hay fever or skin reactions caused by insect bites. Although drowsiness with Zyrtec is uncommon, Zyrtec is more likely... View more |
Related suggestions Allergic Rhinitis
Urticaria
Popular comparisons
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More about Allegra (fexofenadine) | More about Zyrtec (cetirizine) | ||||||||
Ratings & Reviews | |||||||||
Allegra has an average rating of 6.8 out of 10 from a total of 93 ratings on Drugs.com. 59% of reviewers reported a positive effect, while 23% reported a negative effect. |
Zyrtec has an average rating of 5.8 out of 10 from a total of 196 ratings on Drugs.com. 44% of reviewers reported a positive effect, while 35% reported a negative effect. |
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Drug Class | |||||||||
Side Effects | |||||||||
See also: Allegra side effects in more detail. |
See also: Zyrtec side effects in more detail. |
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Generic Availability | |||||||||
Lower cost generic approved | Lower cost generic approved | ||||||||
Pricing and Coupons * Prices are without insurance | |||||||||
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Zyrtec prices |
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Dosage Forms Available | |||||||||
N/A |
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Brand Names | |||||||||
Other fexofenadine brands include: Allegra Allergy, Allegra Hives, Allegra ODT, Aller-Ease | Other cetirizine brands include: All Day Allergy, All Day Allergy Children's, Aller-Tec, Aller-Tec Children's, Alleroff, Children's Allergy Relief, Equate Allergy Relief, PediaCare Children's 24-Hour Allergy, Quzyttir, Zyrtec Hives View more | ||||||||
Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||
14 hours |
10.6 hours |
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CSA Schedule ** View glossary of terms | |||||||||
Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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Pregnancy Category | |||||||||
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
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Drug Interactions | |||||||||
A total of 111 drugs are known to interact with Allegra:
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A total of 258 drugs are known to interact with Zyrtec:
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Alcohol/Food/Lifestyle Interactions | |||||||||
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Disease Interactions | |||||||||
First Approval Date | |||||||||
July 25, 1996 |
N/A |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||
N/A |
N/A |
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More Information | |||||||||
Patient resources | |||||||||
Professional Resources | |||||||||
Related Treatment Guide | |||||||||
** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.