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brinzolamide

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Brand names: Azopt

Carbonic Anhydrase Inhibitor (Ophthalmic) Rx

Azopt eye drops contain brinzolamide, which lowers pressure in the eye. It is used to treat glaucoma and ocular hypertension.

Drug Pricing (NADAC)

Brand Price

$35.31/unit

Generic Price

$12.97/unit

Generic Savings

63%

Generic Available

Yes (2 manufacturers)

Pricing data from NADAC (CMS), effective December 18, 2024. Compare all drug costs →

What it does

Azopt is used to treat high pressure inside the eye.

Common side effects

Blurred vision, Bitter, sour, or unusual taste

Key warnings

Azopt is a sulfonamide drug, and serious reactions can occur, though rarely.

How It Works

Azopt contains brinzolamide, which is a carbonic anhydrase inhibitor. It works by decreasing the production of fluid in the eye. This helps to lower the pressure inside the eye.

How to Take It

Use one drop of Azopt in the affected eye(s) three times a day. Shake the bottle well before each use. If you are using other eye drops, wait at least 10 minutes before using Azopt.

Pregnancy & Breastfeeding

It is not known if Azopt can harm an unborn baby. Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.

Missed Dose

If you miss a dose of Azopt, use it as soon as you remember. Then, continue with your regular schedule.

Storage

Store Azopt at 39°F to 86°F (4°C to 30°C).

Side Effects (from patient reports)

Based on 5,630 FDA adverse event reports.

The medicine did not work
1,429
Difficulty breathing
564
The drug is not working
499
Feeling lightheaded or unsteady
479
Pain in the eye
468
Loose or watery stools
460
Feeling tired
454
Accidentally falling down
433
Pain in the head
426
Eyesight is not clear
418

FDA Adverse Event Report Analysis

Detailed analysis of 8,461 reports from the FDA Adverse Event Reporting System (FAERS). Reports span 2004–2025.

Total Reports

8,461

Death-Related Reports

612

Hospitalization Reports

1,856

Top Indication

Product Used For Unknown Indication

Gender Distribution

Female 4,661 (61%)
Male 2,994 (39%)

Age Distribution

0–17 68
18–44 154
45–64 759
65–74 993
75+ 2,050

Most Reported Adverse Reactions (FAERS)

# Reaction Reports
1 TREATMENT FAILURE 1,429
2 DYSPNOEA 564
3 DRUG INEFFECTIVE 499
4 DIZZINESS 479
5 EYE PAIN 468
6 DIARRHOEA 459
7 FATIGUE 454
8 FALL 433
9 HEADACHE 426
10 VISION BLURRED 418
11 ASTHENIA 410
12 MALAISE 386
13 BLINDNESS 361
14 NAUSEA 361
15 ARTHRALGIA 360

Reactions in Death Reports

HAEMORRHAGIC STROKE 233
DYSPNOEA 227
SEPSIS 225
CARDIO-RESPIRATORY ARREST 224
FALL 224
TACHYCARDIA 223
DIARRHOEA 221
HAEMATEMESIS 219
ALTERED STATE OF CONSCIOUSNESS 216
PRURITUS 214

Reactions in Hospitalization Reports

DYSPNOEA 169
FALL 143
DIARRHOEA 137
ASTHENIA 131
OFF LABEL USE 129
HAEMOGLOBIN DECREASED 109
DIZZINESS 108
NAUSEA 94
VOMITING 94
FATIGUE 90

Source: FDA FAERS (Adverse Event Reporting System) FDA FAERS (Adverse Event Reporting System) Reports are voluntary and do not establish causation

Serious Warnings

Azopt is a sulfonamide drug, and serious reactions can occur, though rarely. If you have signs of a serious reaction or hypersensitivity, stop using Azopt right away. If you have a low number of cells in the cornea, use Azopt with caution, as corneal edema may occur. Azopt is not recommended if you have severe kidney problems.

Common Questions

Can I use Azopt with contact lenses?
No, remove your contact lenses before using Azopt. You can put them back in 15 minutes after using the drops.
What if the tip of the bottle touches my eye?
Avoid touching the tip of the bottle to your eye or any other surface. This can contaminate the medicine and cause an eye infection.
Can I use Azopt if I am allergic to sulfa drugs?
Azopt is a sulfonamide, so you may have an allergic reaction. Talk to your doctor before using Azopt.
What should I do if I experience eye irritation while using Azopt?
Tell your doctor if you have eye irritation, redness, swelling, or pain that does not go away.
Can I drive or operate machinery after using Azopt?
Azopt may cause blurred vision. Be careful driving or operating machinery until your vision is clear.
How long does it take for Azopt to start working?
Azopt starts working right away to lower eye pressure, but it may take a few weeks to see the full effect.
Can I use Azopt with other glaucoma medications?
Yes, Azopt can be used with other eye medications. If you are using more than one eye drop, wait 10 minutes between each medication.
What if I accidentally swallow Azopt?
If you accidentally swallow Azopt, drink plenty of water and contact your doctor or poison control center.
How will I know if Azopt is working?
Your doctor will check your eye pressure during regular visits to see if Azopt is working.
Is it normal to have a strange taste in my mouth after using Azopt?
Yes, a bitter, sour, or unusual taste is a common side effect of Azopt.
What are the common side effects of brinzolamide?
The most commonly reported side effects of brinzolamide include Blurred vision, Bitter, sour, or unusual taste. Based on 5,630 FDA adverse event reports. Always consult your healthcare provider about potential side effects.
What drug class is brinzolamide?
brinzolamide belongs to the Carbonic Anhydrase Inhibitor (Ophthalmic) drug class. It requires a prescription (Rx). Azopt is used to treat high pressure inside the eye.
Is there a generic version of brinzolamide?
Yes, generic brinzolamide is available from 2 manufacturers. The generic costs $12.97 per unit compared to $35.31 for the brand version, saving approximately 63%. Pricing is based on NADAC (National Average Drug Acquisition Cost) data from CMS.
Is brinzolamide safe during pregnancy?
It is not known if Azopt can harm an unborn baby. Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. Always consult your healthcare provider before using any medication during pregnancy or breastfeeding.

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What the FDA Data Shows for brinzolamide

The FDA label for brinzolamide (sold under brand names such as Azopt) classifies it as a prescription-only medication in the Carbonic Anhydrase Inhibitor (Ophthalmic) class. Azopt is used to treat high pressure inside the eye. Official labeling lists 2 commonly reported side effects, including Blurred vision, Bitter, sour, or unusual taste.

Post-market surveillance from the FDA Adverse Event Reporting System (FAERS) captures real-world experience. For this drug, FAERS contains 5,630 voluntary reports. Interaction data is drawn directly from FDA-approved prescribing information. NADAC pricing from CMS shows a generic unit cost of $12.97 versus $35.31 for the brand — a 63% generic savings.

Report counts do not establish causation — a FAERS entry documents a temporal association, not proof that the drug produced the outcome. Widely prescribed medications naturally accumulate more reports than niche therapies, so raw totals must be interpreted alongside total exposure. Shortage status, recall history, and patent information further shape supply and switching decisions. This page summarizes public FDA data for educational purposes only and is not a substitute for professional medical advice — always consult a licensed healthcare provider before starting, stopping, or changing any medication.

Data Sources

Drug labeling: FDA Drug Labels (SPL/DailyMed). Adverse events: FDA Adverse Event Reporting System (FAERS). Pricing: CMS National Average Drug Acquisition Cost (NADAC).

FAERS reports are voluntary and do not establish causation. Drug interactions are derived from FDA labeling and clinical references. Always consult a healthcare professional before making medication decisions.

Last updated: November 24, 2023

All federal data sources used on this page