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ALPHAGAN vs ALPHAGAN P

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Rating

72/100
72/100

Pharmacy pays

$10.38 /mL
$10.38 /mL

Type

RX
RX

Active ingredient

BRIMONIDINE TARTRATE
BRIMONIDINE TARTRATE

Manufacturer

Dosage forms

Drops
Drops

Drug class

Alpha-Adrenergic Agonist
Alpha-Adrenergic Agonist

Boxed warning

None
None

Treats

Open-Angle Glaucoma
Open-Angle Glaucoma

Frequently asked questions

Which is better-rated, Alphagan or Alphagan P?

Alphagan and Alphagan P are tied at 3.6 out of 5 by our independent rating.

Which is cheaper, Alphagan or Alphagan P?

Pharmacies pay about the same to acquire either one — roughly $10.38 per ml, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Alphagan and Alphagan P?

Both Alphagan and Alphagan P share the active ingredient Brimonidine Tartrate.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.