azelastine vs meclizine
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of azelastine and meclizine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
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Azelastine nasal spray is an antihistamine medicine. It helps relieve allergy and non-allergy nasal symptoms.
Meclizine is an antihistamine and antiemetic. It helps prevent and treat nausea, vomiting, and dizziness, especially from motion sickness.
This medicine treats symptoms of seasonal allergies in adults and kids 5 years and older. It also treats symptoms of vasomotor rhinitis (stuffy or runny nose not caused by allergies) in adults and teens 12 years and older. It works by blocking histamine, a substance in the body that causes allergy symptoms.
Meclizine treats nausea, vomiting, and dizziness. It is often used for motion sickness. Talk to your doctor about other uses for this medicine. It can help you feel better when you are traveling.
Azelastine is an antihistamine. It blocks histamine, a natural substance that your body makes during an allergic reaction. By blocking histamine, azelastine helps reduce allergy symptoms like sneezing, runny nose, and itchy eyes.
Meclizine works by blocking certain natural substances in your body. These substances, like histamine, can cause nausea and dizziness. By blocking them, meclizine helps reduce these symptoms.
- • Bitter taste
- • Headache
- • Sleepiness
- • Nasal burning
- • Sore throat
- • Dizziness
- • Fatigue
- Treatment Failure 1,876
- Fatigue 1,144
- Headache 883
- Nausea 879
- Dyspnoea 836
- Dizziness 1,570
- Nausea 1,351
- Fatigue 1,303
- Headache 1,010
- Diarrhoea 991
Azelastine nasal spray can cause sleepiness. Be careful driving or operating machinery until you know how this medicine affects you. Avoid drinking alcohol or taking other medicines that can cause sleepiness while using this spray.
No specific warnings noted.
There is limited information about the safety of azelastine nasal spray during pregnancy. Talk to your doctor if you are pregnant or plan to become pregnant. It is not known if azelastine passes into breast milk, so talk to your doctor if you are breastfeeding.
Talk to your doctor if you are pregnant or breastfeeding before taking meclizine. It is important to weigh the benefits and risks with your doctor.
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How to Read This azelastine vs meclizine Comparison
azelastine is classified in the Antihistamine (Nasal) drug class, while meclizine sits within the Antihistamine / Antiemetic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are available over the counter.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, azelastine has 5,618 submissions while meclizine has 6,225. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for azelastine or meclizine.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.