When treating high eye pressure or glaucoma, there is only one standard dosage of brimonidine -- one drop into the affected eye(s) three times daily. This dosage amount is the same for each of the various brimonidine products (including Alphagan and Alphagan P eye drops). If this medication does not adequately control your eye pressure, your healthcare provider may recommend an additional eye medication.
An Introduction to Your Brimonidine DosageThere is only one standard dose of brimonidine tartrate (Alphagan®), regardless of your age, weight, or the severity of your eye condition. As is always the case, do not adjust your brimonidine dose unless your healthcare provider specifically instructs you to do so.
- Brimonidine tartrate 0.2% (in generic form only) -- available in 5, 10, and 15 mL bottles
- Alphagan P 0.1% (in brand-name form only) -- available in 5, 10, and 15 mL bottles
- Brimonidine tartrate 0.15% -- available in 5, 10, and 15 mL bottles.
The differences between brimonidine tartrate 0.2% and the Alphagan P products are the strengths and the preservatives.
The recommended brimonidine dosage for treating glaucoma or high eye pressure is one drop in the affected eye(s) three times daily, with about eight hours between doses, using any strength or form of the products (including original brimonidine or either strength of Alphagan P).
It is generally not recommended to increase the dose beyond the standard recommended amount, even if your eye pressure remains high. If this dose does not adequately lower the pressure in the eye, your healthcare provider may add another type of eye medication.
All brimonidine products appear to be similar in terms of effectiveness.