Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Olopatadine (Pataday) and azelastine (Astepro Allergy) are both antihistamines used to treat allergy symptoms, but they are used differently. Olopatadine is an eye drop that helps relieve eye itching and redness caused by allergies. It is available over-the-counter and can be used in children as young as 2 years old. On the other hand, azelastine is a nasal spray that treats nasal symptoms like stuffy nose, sneezing, and runny nose. It is also available over-the-counter but is only approved for use in adults and children 6 years and older. Olopatadine should not be used with contact lenses and can cause blurry vision and dry eye. Azelastine might cause a bitter taste, nasal discomfort, and drowsiness. Additionally, azelastine can make you sleepy, so you should avoid alcohol and activities that require alertness.
Olopatadine (Pataday)
Astepro allergy (azelastine)
Olopatadine (Pataday)
Astepro allergy (azelastine)
Summary of Olopatadine vs. Astepro
Summary for Antihistamine
Olopatadine (Pataday) is an antihistamine over-the-counter (OTC) eye drop medication used to treat eye itching and redness from allergies. It's applied to the eyes, typically once or twice daily, depending on the strength. Some side effects of olopatadine (Pataday) include blurry vision and dry eye.
Summary for Antihistamine
Astepro Allergy (azelastine) is an antihistamine nasal spray that's used to treat nasal symptoms due to allergies, such as stuffy nose, sneezing, and runny nose. Astepro Allergy (azelastine) is available over-the-counter (OTC) for adults and children 6 years and older. The strength of Astepro Allergy (azelastine) is 0.15%. The dosage depends on your age, but it's usually sprayed into the nose once or twice a day. Side effects can include a bitter taste in the mouth, nasal discomfort, and sneezing.
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Note: Azelastine nasal spray is also available by prescription in 0.1% and 0.15% strengths.