What Is Brinzolamide? Uses, Dosage, and What You Need to Know in 2026

Brinzolamide is a prescription eye drop used to lower intraocular pressure (IOP) in people with glaucoma or ocular hypertension. It's sold under the brand name Azopt and is now also widely available as a generic. Here is everything you need to know about brinzolamide — from how it works to how to use it correctly.

What Is Brinzolamide Used For?

Brinzolamide is FDA-approved for:

Open-angle glaucoma — The most common type of glaucoma, where the drainage angle of the eye is open but fluid doesn't drain efficiently, causing pressure to build up and gradually damage the optic nerve.

Ocular hypertension — Elevated eye pressure (typically IOP > 21 mmHg) without detectable optic nerve damage, which is a risk factor for developing glaucoma.

Brinzolamide is used either as monotherapy (alone) or as an add-on to other glaucoma medications (most commonly prostaglandin analogs or beta-blockers) when a single drug is not sufficient to reach target IOP.

Drug Class and Brand Names

Drug class: Carbonic anhydrase inhibitor (CAI), ophthalmic sulfonamide

Brand name: Azopt (Alcon)

Combination product: Simbrinza (brinzolamide 1% + brimonidine 0.2%, Alcon)

Generic available: Yes, since 2021 (multiple manufacturers)

Controlled substance: No

How Is Brinzolamide Dosed?

The standard dose of brinzolamide ophthalmic suspension 1% is:

One drop in the affected eye(s) three times daily (approximately every 8 hours)

Shake the bottle well before each use — brinzolamide is a suspension that settles

If using multiple eye drops, wait at least 10 minutes between each drop

Remove contact lenses before use; reinsert after 15 minutes

How to Use Brinzolamide Correctly

Wash your hands thoroughly before handling the bottle

Shake the bottle well — it is a suspension

Tilt your head back and pull down the lower eyelid to create a small pocket

Squeeze one drop into the eye pocket — do not touch the dropper tip to your eye or any surface

Close your eye and press gently on the inner corner for 1 minute (punctal occlusion) — this maximizes absorption and reduces systemic side effects like the bitter taste

Wait 10 minutes before using any other eye drop

What to Tell Your Doctor Before Starting Brinzolamide

Any allergy to sulfa drugs or sulfonamide medications

Any kidney problems (severe renal impairment with CrCl < 30 mL/min is a contraindication)

Any liver disease

If you are pregnant, planning to become pregnant, or breastfeeding

All other eye drops and oral medications you are currently taking

How Effective Is Brinzolamide?

In clinical trials, brinzolamide 1% three times daily reduced IOP by approximately 4-5 mmHg (about 15-20% from baseline). This is comparable to the other topical CAI, dorzolamide 2%. Brinzolamide is less effective than prostaglandin analogs (which reduce IOP by 25-32%) but is commonly used as an add-on medication to provide additional pressure control when a single drug isn't enough.

Storage and Handling

Store at 39°F to 86°F (4°C to 30°C)

Do not freeze

Keep the bottle tightly closed when not in use

Discard after the labeled expiration date

Having Trouble Finding Brinzolamide?

If your pharmacy is out of stock, medfinder can help. You provide your medication details and location, and medfinder calls pharmacies near you to find which ones have brinzolamide in stock. Results are texted directly to you.

Also read: Brinzolamide side effects: what to expect and when to call your doctor.