Olopatadine hydrochloride

Olopatadine hydrochloride is a medication primarily used in the treatment of allergic conjunctivitis and allergic rhinitis. It is an antihistamine and mast cell stabilizer, which works by reducing the body's production of histamines, chemicals that cause allergic reactions.

Pharmacology

Olopatadine hydrochloride is a selective antagonist of the histamine H1 receptor. It inhibits the release of histamine from mast cells, thereby reducing the symptoms of allergic reactions. It also has anti-inflammatory effects, which can help to reduce swelling and redness associated with allergies.

Uses

Olopatadine hydrochloride is used in the form of eye drops to treat the symptoms of allergic conjunctivitis, such as itching, redness, and swelling of the eyes. It is also used as a nasal spray to treat the symptoms of allergic rhinitis, such as sneezing, runny nose, and nasal congestion.

Side Effects

Common side effects of olopatadine hydrochloride include headache, dry mouth, and a bitter taste in the mouth. Less common side effects can include drowsiness, blurred vision, and burning or stinging in the eyes.

Interactions

Olopatadine hydrochloride may interact with other medications, including other antihistamines, sedatives, and certain antidepressants. It is important to inform your healthcare provider of all medications you are currently taking before starting treatment with olopatadine hydrochloride.

See Also

• Antihistamine
• Allergic conjunctivitis
• Allergic rhinitis