Drugs Home > Olopatadine Ophthalmic Solution

Olopatadine ophthalmic solution is a prescription medicine licensed to relieve or prevent eye allergies. As an antihistamine, it works by blocking a specific type of histamine in the body. The medication comes as an eyedrop and is available in two different strengths. Potential side effects include headaches, sore throat, and burning or stinging.

What Is Olopatadine Ophthalmic Solution?

Olopatadine ophthalmic solution (Patanol®, Pataday™) is a prescription eyedrop used for the treatment of eye allergies (known medically as allergic conjunctivitis, which is a common cause of pink eye). It comes in two forms: Patanol (taken twice a day) or Pataday (taken just once a day).
(Click What Is Olopatadine Ophthalmic Solution Used For? for more information, including possible off-label uses.)

Possible Side Effects

Just like any medicine, olopatadine ophthalmic solution can cause side effects. However, not everyone who uses the drug will experience problems. Most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are easily treated by you or your healthcare provider. Serious side effects are less common.
Possible side effects of olopatadine ophthalmic solution include but are not limited to:
(Click Side Effects of Olopatadine Ophthalmic Solution to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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