Can't find Brimonidine? Here are 4 proven alternatives for glaucoma and ocular hypertension, how they compare, and what to ask your doctor about switching.
If your pharmacy is out of Brimonidine and your next refill feels like it's stuck in limbo, the most important thing to know is this: don't just stop treating your glaucoma. Uncontrolled eye pressure can cause irreversible vision loss — and there are several effective alternatives your doctor can prescribe.
In this guide, we'll explain how Brimonidine works, then walk through four real alternatives that ophthalmologists commonly prescribe when Brimonidine isn't available. Each one works a little differently, so understanding the options will help you have a productive conversation with your doctor.
Brimonidine (brand names Alphagan P, Qoliana) is an alpha-2 adrenergic agonist. That's a fancy way of saying it works by doing two things in your eye:
The result? Lower intraocular pressure (IOP), which is the key to managing glaucoma and preventing vision damage.
Brimonidine is typically used as an eye drop, instilled one drop in the affected eye(s) three times daily. It's available in multiple strengths: 0.1%, 0.15%, and 0.2%. For more details, see our guide on how Brimonidine works.
The following medications are all FDA-approved for lowering intraocular pressure. Each works through a different mechanism, which means they're true alternatives — not just different brands of the same drug.
Drug class: Prostaglandin analog
How it works: Latanoprost increases the outflow of aqueous humor through the uveoscleral pathway. It's actually the most commonly prescribed first-line treatment for open-angle glaucoma.
Why it's a good alternative:
Things to know: Can darken the color of your iris and eyelashes over time. May cause eyelash growth (some patients consider this a perk). Can also cause mild eye redness or stinging.
Drug class: Beta-blocker
How it works: Timolol reduces the production of aqueous humor in the eye. It's been used for glaucoma for decades and has a long track record of safety.
Why it's a good alternative:
Things to know: Because it's a beta-blocker, it can lower heart rate and blood pressure. Not ideal for patients with asthma, COPD, or certain heart conditions. Your doctor will review your medical history before prescribing.
Drug class: Carbonic anhydrase inhibitor
How it works: Dorzolamide reduces aqueous humor production by inhibiting an enzyme called carbonic anhydrase in the eye.
Why it's a good alternative:
Things to know: Can cause a bitter or unusual taste in the mouth. Some patients experience burning or stinging upon instillation. Not recommended for patients with sulfa allergies (though the risk of cross-reaction is debated).
Drug class: Alpha-2 adrenergic agonist (same class as Brimonidine)
How it works: Like Brimonidine, Apraclonidine reduces aqueous humor production through alpha-2 receptor stimulation. However, it's less selective than Brimonidine.
Why it's a good alternative:
Things to know: Apraclonidine is typically used short-term only (it tends to lose effectiveness over weeks to months due to tachyphylaxis). It also has a higher rate of allergic reactions compared to Brimonidine. Your doctor will likely use this as a temporary solution, not a long-term replacement.
If you're considering an alternative to Brimonidine, here's what to bring up at your appointment:
Your eye doctor has likely switched patients between these medications many times and can help you find the best fit quickly.
If you prefer to stay on Brimonidine, it's often findable with a little effort. Use Medfinder to check which pharmacies near you have it in stock, or read our guide on how to find Brimonidine in stock near you for more tips.
Running out of Brimonidine is stressful, but it's not a dead end. Latanoprost, Timolol, Dorzolamide, and Apraclonidine are all proven medications that can keep your eye pressure under control while you sort out your supply issues — or permanently, if you and your doctor decide a switch makes sense.
The most important thing is to keep treating your glaucoma. Talk to your doctor, explore your options, and don't let a stock-out become a gap in your care.
More helpful resources:
You focus on staying healthy. We'll handle the rest.
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