Comparing Alahist D vs Allegra-D 12 Hour
| Alahist D (pheniramine / phenylephrine) | Allegra-D 12 Hour (fexofenadine / pseudoephedrine) |
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| Alahist D (pheniramine / phenylephrine) | Allegra-D 12 Hour (fexofenadine / pseudoephedrine) |
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Over-the-counter
Prescribed for Cold Symptoms, Allergic Rhinitis. Alahist D may also be used for purposes not listed in this medication guide. |
Prescription and OTC
Prescribed for Allergic Rhinitis. Allegra-D 12 Hour may also be used for purposes not listed in this medication guide. |
Related suggestions Allergic Rhinitis
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| More about Alahist D (pheniramine / phenylephrine) | More about Allegra-D 12 Hour (fexofenadine / pseudoephedrine) | ||||||||
| Ratings & Reviews | |||||||||
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Be the first to share your experience with this drug. |
Allegra-D 12 Hour has an average rating of 8.1 out of 10 from a total of 13 ratings on Drugs.com. 69% of reviewers reported a positive effect, while 8% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
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View all Alahist D side effects |
View all Allegra-D 12 Hour side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
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N/A |
N/A |
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| Pricing and Coupons * Prices are without insurance | |||||||||
View all Alahist D prices |
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
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| Dosage Forms | |||||||||
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| Brand Names | |||||||||
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N/A |
Other fexofenadine / pseudoephedrine brands include: Allegra-D 12 Hour Allergy & Congestion, Allegra-D 24 Hour, Allegra-D 24 Hour Allergy & Congestion | ||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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N/A |
14.4 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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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 | |||||||||
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Summary unavailable. See the full pregnancy warnings document. |
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 410 drugs are known to interact with Alahist D:
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A total of 335 drugs are known to interact with Allegra-D 12 Hour:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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| Disease Interactions | |||||||||
| First Approval Date | |||||||||
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N/A |
N/A |
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| WADA Class View classifications | |||||||||
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N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
| Professional Resources | |||||||||
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N/A |
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| Related Treatment Guide | |||||||||
1 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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.