Alphagan eye drops contain brimonidine tartrate 0.2% w/v (2 mg/ml) in a sterile ophthalmic solution presented in a 5 ml plastic bottle.
It is used to help reduce elevated intraocular pressure in conditions such as open-angle glaucoma or ocular hypertension, and is typically used exactly as prescribed by an eye-care professional.
For safe day-to-day use, avoid touching the dropper tip to the eye or surfaces, and follow professional advice on dosing intervals and lens handling.