Oloact Eye Drop contains Olopatadine 0.1% w/v, an antihistamine and mast cell stabilizer indicated for the treatment of allergic conjunctivitis. Olopatadine acts by selectively inhibiting histamine H1 receptors and preventing the release of inflammatory mediators from mast cells, thereby reducing symptoms such as itching, redness, and swelling of the conjunctiva. This ophthalmic solution provides rapid relief from ocular itching associated with seasonal allergic conjunctivitis and vernal keratoconjunctivitis. Oloact Eye Drop is typically administered as one drop in the affected eye(s) twice daily or as directed by a healthcare professional. It is well tolerated with minimal systemic absorption, reducing the risk of systemic side effects. Common adverse effects may include mild burning or stinging upon instillation, transient eye irritation, or dry eyes. Patients should avoid touching the dropper tip to any surface to prevent contamination and should not wear contact lenses while using the drops unless advised otherwise by their physician. Oloact Eye Drop is contraindicated in individuals with hypersensitivity to Olopatadine or any other component of the formulation. Use during pregnancy and lactation should be based on a careful risk-benefit assessment by the prescribing physician.