Eyes Home > Alphagan P Side Effects

Eye allergies, redness, and itching are some of the most common side effects reported with Alphagan P. Other problems that have been reported in people using this medication include vision changes, dizziness, and drowsiness. Notify your healthcare provider immediately if you develop any serious side effects, such as difficulty breathing or any signs of an allergic reaction.

An Introduction to Alphagan P Side Effects

As with any medicine, Alphagan® P (brimonidine tartrate) can cause side effects. However, not everyone who uses the medication will have problems. Most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Alphagan P. Your healthcare provider can discuss a more complete list with you.)

Common Side Effects of Alphagan P

Alphagan P has been studied thoroughly in clinical trials in which the side effects of a group of people using the drug were documented. Based on these studies, the most common side effects of Alphagan P or Alphagan (the older formulation of the drug) occurred in 10 to 20 percent of people and included:
  • Eye allergies (allergic conjunctivitis)
  • Eye redness
  • Eye itching.
Other common reactions to Alphagan P or Alphagan (reported in 1 to 9 percent of people) included but were not limited to:
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
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