Eyes Home > Alphagan P Uses

Alphagan P is licensed to reduce eye pressure. This helps prevent damage to the optic nerve, loss of peripheral vision, and possibly blindness. Specifically, people use Alphagan P to treat high eye pressure (ocular hypertension) and open-angle glaucoma. This prescription medication is approved for use in adults and children as young as two years old.

What Is Alphagan P Used For?

Alphagan® P (brimonidine tartrate) is a prescription eye drop that helps lower the pressure in the eyes (intraocular pressure). Specifically, it is approved to lower eye pressure in people with the following conditions:
Not everyone with high eye pressure has glaucoma, although high eye pressure can lead to glaucoma. Effectively treating high eye pressure can help prevent glaucoma.
Glaucoma is not a single disease. It is actually a group of diseases sharing certain features, such as:
  • High pressure within the eye (intraocular pressure)
  • Damage to the optic nerve
  • Loss of peripheral (side) vision
  • Possible blindness.


Of all the different types of glaucoma, open-angle glaucoma is by far the most common (see Types of Glaucoma).

Although there is no cure for open-angle glaucoma, symptoms can usually be controlled and further damage may be prevented or reduced. The most common glaucoma treatments are:
Alphagan P can be used by itself or, if necessary, combined with other types of glaucoma medications or treatments.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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