Alphagan Z Opthalmic Solution 5 ml is used to lower the intraocular pressure in patients with open-angle glaucoma or ocular hypertension. It works by decreasing the production of aqueous humour, thereby lowering the increased pressure in the eye. In some cases, this medicine may cause side effects such as blurred vision, eye redness, discomfort, drowsiness and dry mouth. Avoid touching the container's tip to the eye, eyelids, or surrounding areas as it may contaminate the product