What Is Brimonidine?

Brimonidine is a prescription eye drop medication used to lower eye pressure in people with open-angle glaucoma or ocular hypertension. It belongs to a class of drugs called alpha-2 adrenergic agonists and works by reducing the amount of fluid produced inside the eye while increasing drainage.

Brimonidine is one of the most commonly prescribed glaucoma medications in the United States. It's available in multiple formulations — as a stand-alone eye drop, in combination products, and even as a topical gel for an entirely different condition (facial redness from rosacea).

Brand Names, Generics, and Manufacturer

Brimonidine is sold under several brand names depending on the formulation and intended use:

• Alphagan / Alphagan P — The original brand-name prescription eye drops for glaucoma, manufactured by AbbVie (Allergan). Alphagan P uses a gentler preservative called Purite.
• Lumify — An over-the-counter (OTC) eye drop by Bausch + Lomb containing a very low dose of Brimonidine (0.025%) for temporary redness relief. Lumify does not require a prescription.
• Mirvaso — A topical gel (0.33%) made by Galderma, used to treat facial redness from rosacea. Applied to the skin, not the eyes.
• Combigan — A combination of Brimonidine and Timolol (a beta-blocker), manufactured by AbbVie (Allergan).
• Simbrinza — A combination of Brimonidine and Brinzolamide (a carbonic anhydrase inhibitor).

Generic Brimonidine Tartrate 0.2% is widely available and is the most commonly dispensed version. It is not a controlled substance and has no DEA scheduling.

What Is Brimonidine Used For?

Brimonidine is FDA-approved for the following uses:

Open-Angle Glaucoma

Glaucoma is a group of eye diseases that damage the optic nerve, often caused by abnormally high pressure inside the eye. Brimonidine lowers intraocular pressure (IOP) to slow or prevent vision loss. It may be used alone or alongside other glaucoma medications.

Ocular Hypertension

Some people have elevated eye pressure without optic nerve damage — a condition called ocular hypertension. Brimonidine is used to lower IOP in these patients to reduce the risk of developing glaucoma.

Redness Relief (Lumify)

Lumify (Brimonidine 0.025%) is available over the counter for temporary relief of eye redness. It works by constricting blood vessels on the surface of the eye. Unlike older redness-relieving drops, Lumify has a lower risk of rebound redness.

Facial Redness from Rosacea (Mirvaso)

Mirvaso gel uses Brimonidine's blood vessel-constricting properties to reduce the persistent facial redness associated with rosacea. It's applied to the skin once daily.

For a deeper look at how Brimonidine works in the body, see our guide on Brimonidine's mechanism of action.

How Is Brimonidine Taken?

The dosage depends on which formulation you're using:

Prescription Eye Drops (Glaucoma/Ocular Hypertension)

• Dose: 1 drop in the affected eye(s), 3 times daily, approximately 8 hours apart
• Available concentrations: 0.2% (generic), 0.15% (Alphagan P), 0.1% (Alphagan P)

How to Apply Eye Drops Correctly

1. Wash your hands thoroughly
2. Tilt your head back and look up
3. Pull down your lower eyelid to create a small pocket
4. Hold the dropper above your eye and squeeze one drop into the pocket
5. Close your eyes gently (don't blink hard) for 1-2 minutes
6. Press gently on the inner corner of your eye to prevent the medication from draining into your nose and throat
7. Wait at least 5 minutes before applying any other eye drops
8. Do not touch the dropper tip to your eye or any surface

Lumify (OTC Redness Relief)

• Dose: 1 drop in the affected eye(s) every 6-8 hours as needed
• Do not use more than 4 times daily

Mirvaso Gel (Rosacea)

• Dose: Apply a pea-sized amount to each of the five areas of the face (forehead, chin, nose, each cheek) once daily
• Avoid eyes, mouth, and mucous membranes

Who Should Not Take Brimonidine?

Brimonidine is not appropriate for everyone. Do not use Brimonidine if you:

• Are allergic to Brimonidine Tartrate or any inactive ingredient in the formulation
• Are taking or have recently taken a monoamine oxidase (MAO) inhibitor — the combination can cause dangerous blood pressure spikes
• Have a child under 2 years old — Brimonidine is contraindicated in infants and neonates due to serious risks including CNS depression, apnea, and bradycardia

Use with caution if you have:

• Severe cardiovascular disease
• Liver or kidney impairment
• Depression
• Raynaud's phenomenon
• Orthostatic hypotension (dizziness when standing)

Children aged 2-7 should be closely monitored due to a higher risk of drowsiness. Brimonidine is Pregnancy Category B — use only if clearly needed and after discussing risks with your doctor.

For a complete list of medications to watch out for, see our Brimonidine drug interactions guide.

How Much Does Brimonidine Cost?

The price varies significantly depending on whether you get generic or brand-name Brimonidine:

• Generic Brimonidine 0.2%: $8–$40 for a 5 mL bottle (cash price). With discount cards like GoodRx or SingleCare, as low as $7–$15.
• Alphagan P (brand): $200–$270 without insurance
• Lumify (OTC): $10–$20 at most retailers
• Combigan: $200+ without insurance (generic available)

Generic Brimonidine 0.2% is covered on most insurance formularies as a Tier 1 preferred generic, meaning your copay is typically at the lowest level. Brand-name Alphagan P may require prior authorization or step therapy (trying generic first).

AbbVie offers a co-pay assistance program for Alphagan P through their At Your Service program — eligible commercially insured patients can save up to $2,160 per year. For uninsured or underinsured patients, the Allergan Patient Assistance Program provides Alphagan P at no cost to those who qualify.

For a full breakdown of savings options, visit our guide to saving money on Brimonidine.

Final Thoughts

Brimonidine is a versatile, well-established medication that plays an important role in managing glaucoma, ocular hypertension, and even facial redness from rosacea. Generic versions are widely available and affordable, making it accessible to most patients.

If you've been prescribed Brimonidine, understanding how to use it properly and what to expect from potential side effects will help you get the most benefit from your treatment. As always, follow your doctor's instructions and don't skip doses — consistent use is key to protecting your vision.

Need help finding Brimonidine at a pharmacy near you? Try Medfinder.