Allegra vs. Nasacort
See how Allegra and Nasacort compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Allegra is an oral antihistamine taken once or twice daily, while Nasacort is a once-daily nasal spray that targets inflammation directly in the nose.
Allegra is FDA-approved for seasonal allergies and chronic hives, but Nasacort only treats seasonal and perennial nasal allergy symptoms.
Nasacort often needs several days of regular use to reach full effect, while Allegra can start relieving symptoms within about an hour.
Allegra vs. Nasacort Drug Summary
Allegra
Allegra (fexofenadine) is a second-generation, non-sedating antihistamine used to relieve seasonal allergy symptoms and chronic hives. It comes as a tablet, an orally disintegrating tablet, or an oral suspension, taken once or twice daily depending on age and strength.
Nasacort
Nasacort (triamcinolone acetonide) is a corticosteroid nasal spray that reduces inflammation in the nasal passages to relieve seasonal and perennial allergy symptoms. It's sprayed into each nostril once a day and is available over the counter.
Allegra vs. Nasacort Side Effects
Allegra
Nasacort
Allegra vs. Nasacort Dosage
Allegra
Nasacort
| STAGE | DOSE | WHEN |
| Starting dose | 30 mg twice daily | At the start |
| Maximum dose | 60 mg once daily | If needed |
| Dose changes | 3 increases | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 110 mcg once daily | At the start |
| Maximum dose | 220 mcg once daily | If needed |
| Dose changes | 1 increase | As tolerated |
Allegra
| STAGE | DOSE | WHEN |
| Starting dose | 30 mg twice daily | At the start |
| Maximum dose | 60 mg once daily | If needed |
| Dose changes | 3 increases | As tolerated |
Nasacort
| STAGE | DOSE | WHEN |
| Starting dose | 110 mcg once daily | At the start |
| Maximum dose | 220 mcg once daily | If needed |
| Dose changes | 1 increase | As tolerated |
Allegra vs. Nasacort Indications
Allegra
Allegra is approved to relieve symptoms of seasonal allergic rhinitis, like sneezing, runny nose, and itchy eyes. It's also approved to treat chronic idiopathic urticaria, or hives without a known cause, in adults and children.
Relief of seasonal allergic rhinitis symptoms
Treatment of chronic idiopathic urticaria (hives)
Approved for ages 6 months and up, by formulation
Available as tablet, ODT, or oral suspension
Nasacort
Nasacort is approved to relieve nasal symptoms of seasonal and perennial allergic rhinitis, such as congestion, sneezing, and runny nose. It is not approved for asthma or for children under 2 years old.
Nasal symptoms of seasonal allergic rhinitis
Nasal symptoms of perennial allergic rhinitis
Approved for ages 2 and older
Not approved for asthma
Allegra vs. Nasacort Pros and Cons
Allegra
Allegra offers fast, non-sedating relief in pill form and is the only one of the two approved for chronic hives. It won't cause the nasal irritation associated with steroid sprays, but it doesn't target nasal congestion or inflammation as directly as Nasacort does.
Pros
Also approved to treat chronic hives
Starts working within about an hour
Oral tablet, ODT, or liquid, no nasal spray needed
Cons
Doesn't directly reduce nasal inflammation or congestion
Higher-strength dosing needs twice-daily tablets for some ages
ODT formulation contains phenylalanine
Nasacort
Nasacort delivers a corticosteroid directly to nasal tissue, often providing stronger relief for congestion than an oral antihistamine. It is dosed once daily and sold over the counter, but it needs consistent daily use to build full effect and carries steroid-specific risks.
Pros
May relieve nasal congestion more effectively than a pill
Once-daily spray, available over the counter
Treats both seasonal and perennial allergy symptoms
Cons
Not approved for chronic hives
Takes days of regular use to reach full effect
Carries steroid risks: septal perforation, slowed growth in kids
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