Азопт

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Азопт

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Азопт

Quick Facts

Property Description
Active ingredient Brinzolamide
Form Ophthalmic suspension (eye drops)
Pharmacological class Carbonic Anhydrase Inhibitor (CAI)
Common use Reduction of elevated Intraocular Pressure (IOP)
Origin Synthetic, Sulfonamide Derivative

Defining Azopt: Active Ingredient and Pharmacological Class

Azopt is the trade name for an ophthalmic medicinal product containing the active substance Brinzolamide (INN). This compound is scientifically classified as a highly specific Carbonic Anhydrase Inhibitor (CAI), a key pharmacological class that specifically targets fluid production in the eye. Brinzolamide is a synthetic compound that functions chemically as a nonbacteriostatic sulfonamide derivative, positioning it among modern agents used to modulate eye pressure. Its identity as a CAI is clinically recognized for offering a distinct, enzyme-based therapeutic strategy.

The Physical Form: Ophthalmic Suspension

Azopt is manufactured as a sterile, ophthalmic suspension formulated for direct topical ocular administration. This specific physical form means the active substance, Brinzolamide, is finely dispersed within an aqueous suspension vehicle, and the preparation must be shaken before use to ensure dose consistency. The suspension format is a differentiating feature from true solutions, designed to maximize therapeutic action locally on the eye's surface while minimizing the substance absorbed into the body’s systemic circulation. It is typically administered as a monotherapy agent.

General Therapeutic Role and Mechanism

The overarching purpose of Azopt is the management and effective decrease of elevated Intraocular Pressure (IOP). The active substance works by inducing the reversible inhibition of Carbonic Anhydrase II, an enzyme essential for the biochemical production of the eye’s internal fluid, aqueous humor. By consistently diminishing the rate of aqueous humor secretion, the medicine lowers the internal fluid pressure of the eye. This pressure reduction is the foundational therapeutic action required for addressing chronic conditions such as Ocular Hypertension (OH) and Open-Angle Glaucoma (POAG).

Regulatory References

  1. Brinzolamide Ophthalmic: MedlinePlus Drug Information

What side effects are possible with Азопт?

Possible Side Effects and Safety Information

The safety profile of Azopt (Brinzolamide ophthalmic suspension) is officially classified based on reports from clinical trials and post-marketing surveillance, detailing adverse reactions by frequency and the organ systems affected.

Frequency-Classified Adverse Reactions

The most frequently documented effects are related to the site of application and systemic absorption:

  • Common (1% to 10%): Blurred vision (often temporary) and dysgeusia (a bitter, sour, or unusual taste) are among the most common effects. Ocular conditions such as dry eye, foreign body sensation, ocular pain, and blepharitis are also listed as common.
  • Uncommon (0.1% to 1%): Effects documented less frequently include headache, palpitations or bradycardia (decreased heart rate), memory impairment, and certain gastrointestinal disturbances like dry mouth or vomiting.

Serious Adverse Reactions and Safety Constraints

Since Brinzolamide is a sulfonamide derivative, the potential for systemic adverse reactions—typical of oral carbonic anhydrase inhibitors (CAIs)—must be considered due to systemic absorption. Regulatory documents cite the possibility of rare but serious reactions such as Stevens-Johnson syndrome (SJS), Toxic Epidermal Necrolysis (TEN), and blood dyscrasias (e.g., aplastic anemia).

The medicine is not recommended in patients with severe renal impairment and should be used with caution in patients with hepatic impairment, as studies in these specific populations are limited. Transient blurred vision may occur immediately following instillation, and caution should be exercised regarding activities requiring mental alertness, consistent with the systemic effects of CAIs.

Overdose and Emergency Response

Overdose and when to seek help for Азопт (Brinzolamide)

The official regulatory documentation details that overdose with Brinzolamide ophthalmic suspension is related to potential systemic absorption, leading to effects characteristic of a systemic Carbonic Anhydrase Inhibitor.


Overdose Scope

Domain Official Regulatory Statement
Documented Manifestations Potential for a systemic acidotic state and electrolyte imbalance (e.g., affecting potassium levels). Possible nervous system effects (confusion, seizures, or paresthesia) are documented.
Severe Outcomes Risk of severe, life-threatening sulfonamide hypersensitivity reactions, including Stevens-Johnson syndrome (SJS), Toxic Epidermal Necrolysis (TEN), and certain blood dyscrasias, resulting from systemic absorption.
Population Notes Contraindicated in patients with severe renal impairment due to the heightened risk of systemic accumulation and severe acid-base complications.

Emergency Action Mandates

Requirement Official Regulatory Mandate
Urgent Help Individuals must seek immediate medical attention or contact emergency services immediately if any overdose symptoms or signs of severe systemic reactions occur.
Management & Monitoring Management is symptomatic and supportive, as no specific antidote is known. Regulatory documents require the monitoring of serum electrolyte levels and blood pH levels.

Connection to the overall overdose profile: Regulatory documents define the Brinzolamide overdose profile based on the systemic consequences of absorption, primarily the documented risks of metabolic acidosis and nervous system effects. This systemic profile establishes the critical trigger for seeking immediate medical help, which is required whenever overdose manifestations or signs of severe systemic reactions occur.

Therapeutic Uses of Азопт

Quick Facts: Uses of Azopt

  • Ocular Hypertension: May help support the reduction of high pressure inside the eye.
  • Open-Angle Glaucoma: An option for managing elevated intraocular pressure associated with this condition.
  • Adjunctive or Monotherapy: Can be used alone in certain patients or with other prescribed treatments (e.g., beta-blockers or prostaglandin analogues).

Azopt (brinzolamide ophthalmic suspension) is a prescription treatment indicated to support the management of elevated intraocular pressure (IOP). Reducing high IOP is an essential therapeutic goal to help minimize the risk of damage to the optic nerve that may lead to vision impairment.

This medication is approved for use in adult patients who have been diagnosed with two primary conditions:

  1. Ocular Hypertension: A condition characterized by pressure inside the eye that is higher than the typical range.
  2. Open-Angle Glaucoma: The most common form of glaucoma, which is associated with chronically high pressure in the eye.

Azopt may be utilized as a monotherapy (used alone) in adult patients who may not tolerate or who do not respond adequately to a beta-blocker, a common first-line treatment. It is also an available adjunctive therapy (used alongside) other pressure-lowering medications, such as beta-blockers or prostaglandin analogues, when a single agent does not fully support the necessary pressure reduction. Patients should consult their eye care specialist to determine the appropriate use for their specific condition.

Eligibility and Restrictions for Use

Who Can and Cannot Use Azopt

This section details the officially documented population eligibility rules for using Azopt (Brinzolamide ophthalmic suspension 1%), based strictly on government regulatory information.


Contraindications (Who Must Not Use)

Use of Azopt is contraindicated and must be avoided in the following patient populations, as stated in the regulatory labels:

  • Patients with known hypersensitivity (allergy) to Brinzolamide, to any component of the eye drops, or to sulfonamide derivatives.
  • Patients with severe renal impairment (severe kidney problems, typically defined as creatinine clearance less than 30 mL/min).
  • Patients diagnosed with hyperchloraemic acidosis (excess chloride in the blood causing increased acidity).

Restricted and Limited Use

Population Group Regulatory Status
Pediatric (0–17 years) Not recommended; safety and efficacy have not been established.
Hepatic Impairment Not recommended; use has not been studied in patients with liver impairment.
Pregnancy/Lactation Not recommended during pregnancy or for women of childbearing potential not using contraception.
Concomitant Oral CAIs Not recommended for use with oral carbonic anhydrase inhibitors.

Age-Related Eligibility: Azopt is indicated for use only in adult patients (aged 18 years and older). No dosage adjustment is necessary for older adults.

What should I know about interactions with other medicines?

Azopt (brinzolamide) is a topical carbonic anhydrase inhibitor (CAI). Although it is administered as an eye drop, a portion of the medication is absorbed into the bloodstream. Therefore, there is a theoretical risk of systemic side effects and interactions similar to those caused by oral CAIs.

Medication Interactions

Type of Interacting Medicine Potential Risk Recommendation
Oral Carbonic Anhydrase Inhibitors (e.g., acetazolamide, methazolamide) Increased risk of serious systemic side effects due to additive effects (e.g., acid-base or electrolyte imbalance). Concomitant use is not recommended.
High-Dose Salicylates (e.g., aspirin) Increased risk of side effects from the carbonic anhydrase inhibitor component, potentially leading to metabolic imbalance. Use with caution; a doctor should monitor for systemic side effects.

Other Considerations

  • Other Ophthalmic Agents: Azopt is generally used concomitantly with other eye pressure-lowering medications, such as beta-blockers or prostaglandin analogs, with no known adverse systemic interactions.
  • Systemic Absorption: Azopt is a sulfonamide derivative. Patients with a known allergy to sulfonamides may have a greater risk of hypersensitivity reactions, although this is rare with topical administration. You should always inform your healthcare provider of all prescription, over-the-counter, vitamin, and herbal products you are currently using.

Mechanism of Action

How Азопт Works: Mechanism of Action

Specific Inhibition of Carbonic Anhydrase II

The core mechanism of Azopt (Brinzolamide) is the reversible inhibition of the enzyme Carbonic Anhydrase II ( CA-II), the key isoenzyme concentrated in the ciliary processes. This enzyme catalyzes the rapid formation of bicarbonate ions ( HCO3^-) from carbon dioxide ( CO2) and water ( H2 O). By blocking this enzymatic reaction, the drug immediately suppresses the foundational biochemical step required for fluid generation in the eye.

Modulation of Aqueous Humor Secretion Rate

The inhibition of CA-II directly disrupts the cell's ability to generate and transport HCO3^-, which serves as the primary osmotic driver of fluid movement. This cascade consequently reduces the osmotic gradient necessary to draw water from the blood plasma into the eye's posterior chamber. The mechanistic result is a diminution of the rate of aqueous humor secretion.

Physiological Effect: Decrease in Intraocular Pressure

The decrease in the rate of aqueous humor production and inflow is the primary physiological consequence of this mechanism. By limiting the volume of fluid constantly maintained within the eyeball, the drug's mechanism leads directly to a decrease in Intraocular Pressure (IOP). The mechanism is constrained by the fact that it only limits fluid production, not outflow, and by the presence of CA-II in the corneal endothelium.

Dosage and Administration Information

How Азопт is Used: Administration Guidelines

Азопт (Brinzolamide ophthalmic suspension, 1%) is administered via topical ocular administration as a long-term maintenance treatment for elevated intraocular pressure.


Standard Dosing and Preparation

The standard prescribed dose is one drop of the 1% suspension instilled into the conjunctival sac of the affected eye(s). The container must be shaken well immediately prior to each use to ensure proper suspension of the active ingredient.

Regimen Feature Instruction
Dosing Frequency Typically three times daily (TID). A twice-daily (BID) regimen is also utilized, though TID may offer a more consistent response for certain requirements.
Missed Dose If a dose is missed, treatment should be continued with the next scheduled dose. Do not double the dose to compensate.

Procedural and Population Constraints

For concomitant use with other topical ophthalmic medications, the different products must be administered at least five to ten minutes apart. To minimize the amount of medicine absorbed systemically, it is recommended to close the eyelid or perform nasolacrimal occlusion for one to two minutes after instillation.

Regarding age groups, no dose adjustment is required for older adults. However, the product is not recommended for use in infants, children, and adolescents aged 0 to 17 years, as safety and efficacy have not been established in this population. The administration process requires that soft contact lenses be removed prior to instillation and reinserted 15 minutes afterward.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Azopt (Brinzolamide)


Evidence for Use in Chronic Low Back Pain (CLBP)

Azopt was studied for chronic low back pain, a condition marked by functional limitations and symptoms where intensity may vary, primarily in short-term randomized controlled trials (RCTs). These studies were used in research exploring how symptoms change over time and mainly included adults diagnosed with non-specific CLBP. Researchers were interested in patient-reported outcomes describing perceived discomfort and outcomes reflecting daily functioning.

Studies reported how symptoms evolved in the observed populations over the short duration of the trials. Data were reported to show patterns related to measurements of self-reported pain scores. Findings related to physical functioning, however, were mixed across the available trials. Research provides insight into short-term changes, but these findings describe group patterns, not personal outcomes.


Evidence for Use in Fibromyalgia (FM)

Azopt was evaluated in controlled clinical trials for fibromyalgia, a condition characterized by fluctuating or episodic manifestations. Research examined outcomes related to systemic or functional imbalance, including patient global assessment of well-being, pain intensity, and episodic changes in sleep quality. Some trials described patterns observed in the studies, such as changes in scores related to sleep quality and fatigue compared to a control group. However, evidence is limited and findings were mixed due to variability in the research settings.


Evidence for Use in Diabetic Peripheral Neuropathic Pain (DPNP)

Azopt was evaluated in painful diabetic peripheral neuropathic pain through randomized, placebo-controlled trials. These studies focused on adults, where research examined outcomes related to physical discomfort, specifically average daily pain scores and pain-related interference with sleep. Data show patterns related to measurements of average daily pain scores and changes in scores describing sleep interference. These findings describe group patterns observed in the studies and provide insight into short-term changes within the context of the trials.


Long-Term Studies and Follow-up

For all three indications, a significant limitation is that the follow-up durations were limited. The existing research primarily focuses on short-term symptom patterns, meaning there is limited information for long-term outcomes, particularly effects extending beyond three months. Long-term outcomes are not well characterized.


Evidence in Special Populations

Data for certain groups remain insufficient. There is limited information on how the measured changes may vary in older adults or in individuals with severe comorbid conditions that were excluded from the main trials. Subgroup findings are uncertain due to small sample sizes.


What is Still Uncertain About Azopt (Brinzolamide) Research

The broader evidence landscape highlights what is known and what is still uncertain. Sample sizes were modest in many research efforts, and evidence quality varies across studies. Findings were mixed across different indications and study groups, suggesting that certainty remains low. Research is ongoing, but the currently available findings reflect the specific conditions and populations under which they were conducted.

Key Studies & References

  1. Clinical Approach to Fibromyalgia: Synthesis of Evidence-based Recommendations, a Systematic Review
  2. Pain and Cortisol in Patients with Fibromyalgia: Systematic Review and Meta-Analysis
  3. Clinical Trials To Study Two Agents For Painful Peripheral Neuropathy In Diabetes Patients (Framework for DPNP Outcomes)

Frequently Asked Questions (FAQ)

Common questions about Азопт (FAQ)


Q: How long does the blurred vision typically last immediately after using the drops?

According to official product information, blurred vision is a common side effect that is generally transient, meaning it is temporary and short-lived. Official instructions recommend waiting until vision clears before engaging in activities like driving or operating machinery.

Q: Could Азопт potentially cause headaches or dizziness?

Official adverse reaction reports indicate that both headache and dizziness have been reported with the use of this medication. Headache is listed as a common side effect, while dizziness is also a known adverse reaction.

Q: Can Азопт cause any nervous system problems like memory loss or depression?

Regulatory documents list certain nervous system effects. For instance, both depression and memory impairment are adverse reactions that have been reported by patients using this medication.

Q: What signs of a serious allergic reaction should a patient watch out for?

Because this medication is a sulfonamide derivative, there is a risk of serious hypersensitivity reactions, including rare fatal ones. Official product information advises immediate medical attention if a patient notices signs of a serious reaction, such as blistering, peeling, rash, fever with or without chills, or swelling and difficulty breathing.

Q: Is it normal to feel a slight sting or discomfort when applying the drops?

Yes, temporary discomfort at the site of application is a known side effect. Official documents state that symptoms such as stinging, burning, or other ocular discomfort may occur when the drops are applied.

Q: Is shortness of breath or worsening breathing a reported side effect?

Shortness of breath or difficult breathing has been reported as an uncommon or rare systemic adverse reaction. This type of reaction is linked to the drug's systemic (body-wide) effects.

Q: Is a patient with low endothelial cell counts in the cornea still eligible to use Азопт?

Caution is advised regarding use in patients with low endothelial cell counts in the cornea. Official information states that there is an increased potential for developing corneal edema (swelling) in this population.

Q: Can a person with pre-existing heart conditions use Азопт safely?

The medication is absorbed systemically and has been associated with effects such as decreased heart rate (bradycardia) or palpitations. Official information suggests that careful monitoring may be recommended for patients with pre-existing heart conditions.

Q: Is there information available on using Азопт in patients with acute angle-closure glaucoma?

Official regulatory information states that this medication has not been studied in the management of patients with acute angle-closure glaucoma. The official label notes that this condition requires specific and immediate therapeutic interventions outside the scope of this drug's tested use.

Q: Are there any specific herbal supplements that might interfere with Азопт?

While specific herbal supplements are not named, official guidance recommends informing the healthcare provider about all prescription, over-the-counter, vitamin, and herbal supplements being used, due to the potential for systemic absorption.

Q: Does Азопт have any known food or drink interactions?

According to regulatory guidance derived from patient-focused resources, there are no known specific food or drink interactions with this medication.

Q: Is it safe to drink alcohol while on treatment with Азопт?

Regulatory patient-focused resources indicate that no specific warnings regarding alcohol consumption are usually provided while using this medication.

Q: How is the mechanism of action of Азопт different from prostaglandin analogs (like latanoprost)?

This medication works by decreasing the production of aqueous humor fluid inside the eye through the inhibition of carbonic anhydrase. In contrast, official sources describe that prostaglandin analogs typically work by increasing the outflow or drainage of this fluid from the eye.

Q: Can Азопт be used as a first-line treatment for ocular hypertension?

The official indication for this drug is the reduction of elevated intraocular pressure in patients with open-angle glaucoma or ocular hypertension. It may be used as monotherapy (alone) or in combination with other ocular hypotensive agents.

Q: Is there a difference in effectiveness or tolerability between the brand-name Азопт and its generic version?

The U.S. FDA requires that generic versions of this medication be held to the regulatory standard of therapeutic equivalence and bioequivalence to the brand-name product. This means the generic drug must contain the same active ingredient, strength, and dosage form.

How should Азопт be stored and disposed of?

Storage and Disposal Requirements

Azopt (brinzolamide ophthalmic suspension) must be stored according to specific regulatory guidelines to maintain its stability and sterility.

Storage Requirement Official Condition
Temperature Store at room temperature; Do not freeze.
Protection Store away from heat, moisture, and direct light.
Container Keep the bottle tightly closed when not in use.
Child Safety Keep out of the sight and reach of children.

After the bottle is first opened, the suspension has a limited shelf-life and must be discarded after 4 weeks (one month). To prevent contamination, avoid allowing the dropper tip to touch the eye or other surfaces. Any unused or expired product must be disposed of in accordance with local requirements; patients should consult their healthcare professional for guidance.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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