TIMORIN contains Timolol Maleate Ophthalmic Solution IP 0.5% w/v, a sterile ophthalmic beta-blocker formulated to effectively reduce elevated intraocular pressure (IOP) in patients with open-angle glaucoma and ocular hypertension. By reducing aqueous humor production, TIMORIN helps protect the optic nerve and preserve vision when used under the supervision of an ophthalmologist.