Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Epinastine (formerly branded as Elestat) and emedastine (formerly branded as Emadine) are both antihistamine eye drop medications used to treat allergy-related eye symptoms, such as itchiness and redness. However, there are several differences between the two. Epinastine is still available as a generic prescription medication, while emedastine has been discontinued in the U.S. since 2019 for business reasons, not safety concerns. Epinastine is used twice a day and is approved for use in children as young as 2 years old, whereas emedastine's specific dosing and age recommendations are not detailed due to its discontinuation. Epinastine works as both an antihistamine and a mast cell stabilizer, while emedastine functions solely as an antihistamine. Common side effects of epinastine include a burning feeling in the eye and eye redness, while emedastine was noted for having few side effects. If you need an alternative to emedastine, over-the-counter options like olopatadine (Pataday) and ketotifen (Zaditor) are available.
Epinastine
Emedastine
Epinastine
Emedastine
Summary of Elestat vs. Emadine
Summary for Antihistamine
Prescription only
Epinastine hydrochloride is an antihistamine eye drop medication. It's used to prevent eye itchiness that's related to allergies. The eye drops are available by prescription for adults and children 2 years of age and older. The medication is placed directly into the eyes twice a day. Side effects include a burning feeling in the eye and eye redness.
Summary for Antihistamine
Emedastine was an eye drop used for allergies and hay fever. It's no longer available in the U.S.