Timolol (ophthalmic)
Timolol (ophthalmic). Non-selective β-adrenergic blocker — reduces aqueous humor production by ciliary epithelium → lowers intraocular… Transdermal half-life 4 h.
Non-selective β-adrenergic blocker — reduces aqueous humor production by ciliary epithelium → lowers intraocular pressure. Topical application has meaningful systemic absorption — cardiovascular + bronchoconstriction concerns in COPD/asthma + bradycardia.