Diluran

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Diluran

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 Diluran

Diluran is a pharmaceutical medication known by the active substance Acetazolamide (INN), a compound designated as the prototype drug within its specific therapeutic group. This medication is utilized to manage conditions linked to certain fluid and ion imbalances across several body systems, and it is available exclusively as a prescription-only agent.


Quick Facts About Diluran (Acetazolamide)

Property Description
Active ingredient Acetazolamide
Form Tablet, Capsule (extended-release), Injection
Pharmacological class Carbonic Anhydrase Inhibitor (CAI)
Common use Management of pressure/fluid imbalances (e.g., eye, brain)
Origin Synthetic (a sulfonamide derivative)

Chemical Identity and Classification

The core of Diluran is the active ingredient Acetazolamide, a compound of synthetic origin that falls into the chemical category of a sulfonamide derivative. As a single-ingredient product, its function is determined entirely by this specific chemical entity. Acetazolamide belongs to the Carbonic Anhydrase Inhibitor (CAI) pharmacological class, reflecting its distinctive mechanism of effect on a widespread enzyme. Acetazolamide is widely recognized as the first generation CAI, meaning it was one of the initial and most significant discoveries in this class of drugs. This unique classification is clinically recognized for its ability to target the carbonic anhydrase enzyme in multiple organ systems.

General Therapeutic Purpose and Differentiation

The overall therapeutic purpose of Diluran is to influence specific physiological processes that regulate fluid pressure and neuronal activity by inhibiting the carbonic anhydrase enzyme. This action makes it functionally relevant for the general management of elevated intraocular pressure in the eye and the stabilization of abnormal neuronal discharge in the brain, which are the two primary therapeutic contexts. The drug's classification and utility as an agent for treating glaucoma are well-established, as Acetazolamide is recognized for its efficacy as an anti-glaucoma agent. Through its effects on the kidneys, it also assists in promoting diuresis (increased urination) to reduce certain types of fluid retention.

What side effects are possible with Diluran?

Possible side effects and safety information

The safety profile for Diluran (Acetazolamide) is structured by adverse reactions categorized by frequency and the organ system affected, as defined in official regulatory documents. The most commonly documented effects are often related to its action on the nervous system and fluid balance.


Official Adverse Reaction Categories

Adverse effects are grouped into System-Organ Classes (SOCs), including Nervous System Disorders (e.g., paresthesia, headache), Metabolism and Nutrition Disorders (e.g., metabolic acidosis, taste alteration, polyuria), Gastrointestinal Disorders (e.g., nausea, vomiting), and Renal and Urinary Disorders.

Paresthesia (a tingling sensation) is often classified as a Very Common effect and typically appears early in therapy. Other Common effects include drowsiness, fatigue, and taste alteration. Conversely, risks such as Nephrolithiasis (kidney stones) are associated with long-term use, a pattern noted in official labeling.


Serious Adverse Reactions and Restrictions

As a sulfonamide derivative, Acetazolamide carries a documented potential for rare, but severe adverse reactions, including potentially fatal blood dyscrasias (like aplastic anemia), severe hepatic necrosis, and Stevens-Johnson syndrome.

Regulatory documents establish several safety constraints. The medicine is officially contraindicated in patients with marked renal or severe hepatic impairment due to the risk of serious complications, such as the precipitation of hepatic encephalopathy. Caution is also advised in older adults, who may be at a higher risk of electrolyte imbalances due to changes in renal function.

Overdose and Emergency Response

The official regulatory information for Acetazolamide (Diluran) overdose focuses on the expected physiological disturbances resulting from excess drug exposure. Documented manifestations include signs of severe electrolyte imbalance, the development of an acidotic state, and central nervous effects. In instances of severe toxicity, particularly when associated with certain co-administered drugs like high-dose salicylates, manifestations such as anorexia, lethargy, and tachypnea may be observed, with the potential for life-threatening outcomes including coma and death.

Due to these potential severe risks, regulatory guidance mandates that individuals must contact a poison control center or emergency room at once if an overdose is suspected. This required action is critical because official labeling confirms that no specific antidote is known for Acetazolamide.

Management is strictly required to be symptomatic and supportive. Supportive measures, as described in official documents, involve the monitoring of serum electrolyte levels (especially potassium) and blood pH levels to guide the restoration of systemic balance. The correction of the acidotic state may involve the administration of bicarbonate, and hemodialysis may be beneficial in select cases. The label notes that no specific data regarding overdosage in humans are available, and certain populations, like the elderly or those with impaired renal function, have an officially noted higher risk for severe metabolic acidosis.

Therapeutic Uses of Diluran

Main Uses and Benefits of Diluran

Diluran is a medication containing the active substance acetazolamide, which belongs to a class of drugs known as carbonic anhydrase inhibitors. By inhibiting this enzyme, the medication reduces the production of certain fluids in the body, leading to several therapeutic applications.

Management of Glaucoma

One of the primary uses of Diluran is the treatment of glaucoma, a condition characterized by increased pressure within the eye. The medication works by decreasing the secretion of aqueous humor, the fluid that fills the front part of the eye. This reduction helps lower intraocular pressure in various forms of the condition, including:

  • Open-angle glaucoma: Used as an adjunctive treatment when additional pressure reduction is required.
  • Secondary glaucoma: Managed when the pressure increase is a result of other medical conditions or injuries.
  • Acute congestive glaucoma: Employed as part of pre-operative management to rapidly lower pressure before surgical intervention.

Treatment of Edema

Diluran is used to treat edema, which is the abnormal accumulation of fluid in body tissues. It acts as a mild diuretic, promoting the excretion of water and sodium through the kidneys. This application is typically relevant in cases of:

  • Congestive heart failure: To help manage fluid retention when other treatments need supplementation.
  • Drug-induced edema: To counteract fluid retention caused by specific medications.

Prevention and Management of Altitude Sickness

The medication is used to prevent or reduce the symptoms of acute mountain sickness in climbers and those traveling to high altitudes. It helps the body acclimatize more rapidly to low-oxygen environments by increasing bicarbonate excretion and stimulating ventilation, which can mitigate symptoms such as headache, fatigue, and dizziness.

Adjunctive Therapy for Epilepsy

In certain cases, Diluran is used alongside other anticonvulsant medications to treat various forms of epilepsy. It is most commonly associated with the management of petit mal (absence) seizures or as an additional treatment for generalized seizures. The inhibition of carbonic anhydrase in the central nervous system is believed to contribute to its anticonvulsant effects.

Regulatory References

  1. NIH MedlinePlus Drug Information Overview

Eligibility and Restrictions for Use

Who can and cannot use Diluran?

Eligibility for Diluran (Acetazolamide) is strictly defined by regulatory authorities and depends on a patient's pre-existing conditions and physiological state.

Absolute Contraindications

Diluran is contraindicated in patients with a known hypersensitivity to acetazolamide or to sulfonamide derivatives.

The medication must not be used by patients with:

  • Marked liver disease or renal dysfunction.
  • Hepatic cirrhosis or suprarenal gland failure.
  • Hyperchloremic acidosis or depressed serum levels of sodium or potassium.
  • Long-term use for chronic non-congestive angle-closure glaucoma.

Population Restrictions

Population Group Regulatory Status
Pediatric Patients Safety and effectiveness are not established for general use; the extended-release form is not established in patients under 12 years.
Pregnancy Use is advised only if the potential benefit justifies the risk to the fetus (Category C).
Lactation A decision to discontinue nursing or discontinue the drug is recommended.
Geriatric Patients Dose selection should be cautious due to the greater frequency of decreased organ function.

Use requires special caution in patients with impaired glucose tolerance, severe pulmonary obstruction, or those taking high-dose aspirin.

What should I know about interactions with other medicines?

The official interaction profile for Diluran (Acetazolamide) is primarily defined by the drug's effect on urinary pH and the risk of additive systemic toxicity. All interactions below are documented in government regulatory sources.

Formally Documented Contraindications

Co-administration with Methenamine is formally contraindicated, as Acetazolamide can reduce its effectiveness by inhibiting its conversion to the active form, a process that requires acidic urine. Additionally, the combination of Acetazolamide with high-dose Salicylates (e.g., high-dose Aspirin) is strictly prohibited due to a high risk of severe systemic toxicity, which includes reports of metabolic acidosis and CNS effects.

Exposure-Modifying and Pharmacodynamic Interactions

Acetazolamide affects the concentration of other medications by modulating their renal clearance:

Interacting Substance Official Outcome Interaction Mechanism Basis
Lithium Reduced plasma concentration Increased renal excretion
Quinidine, Amphetamines Increased plasma concentration Reduced renal excretion (due to alkaline urine)
Phenytoin Increased plasma concentration Reduced excretion rate

Co-use with other diuretics or drugs that cause potassium loss may reinforce the risk of developing hypokalemia (low potassium). The official label notes that co-administration with alcohol may increase the potential for central nervous system depressant effects, such as drowsiness.

Population-Specific Constraints

Acetazolamide is formally contraindicated in patients with marked liver disease or cirrhosis due to the risk of precipitating or aggravating hepatic encephalopathy.

Mechanism of Action

The mechanism of Diluran is defined by the reversible inhibition of the Carbonic Anhydrase ( CA) enzyme. This molecular action initiates physiological cascades across the body systems where the enzyme is highly expressed.

Enzyme Inhibition and Fluid Secretion Modulation

The drug acts by blocking CA within the epithelial cells of the ciliary processes in the eye and the choroid plexus in the brain. This molecular interference prevents the necessary bicarbonate ( HCO3^-) transport that drives fluid movement, resulting in a direct modulation of the rate of Aqueous Humor and Cerebrospinal Fluid ( CSF) secretion.

Renal Pathway and Neuronal Membrane Stabilization

In the renal proximal tubule, CA inhibition prevents the reabsorption of HCO3^-, resulting in the loss of bicarbonate, sodium, and water, and the induction of a mild systemic metabolic acidosis that serves as a respiratory stimulus via central chemoreceptors. Concurrently, within the Central Nervous System ( CNS), the drug's effect on local CO2/ HCO3^- gradients helps to shift the resting membrane potential and stabilize electrical charge across neuronal membranes.

Dosage and Administration Information

Diluran, which contains the active substance Acetazolamide, is officially administered by the oral route as immediate-release tablets or extended-release capsules, or through intravenous (IV) injection for rapid effect. The available immediate-release tablet strengths are typically 125 mg and 250 mg, while the extended-release capsules are 500 mg. Intramuscular administration is generally not recommended due to potential discomfort at the injection site.

The standard adult regimen for chronic conditions like glaucoma typically ranges from 250 mg to 1000 mg per 24 hours, often taken in divided doses. For conditions managed with diuresis, the usual dose is 250 mg to 375 mg once daily, typically administered in the morning. This diuresis regimen requires a cyclic pattern of use, such as administration on alternate days or for two consecutive days followed by a rest day, which helps prevent a diminished therapeutic response.

For the prevention of acute mountain sickness (AMS), the medication is indicated for use starting 24 to 48 hours before ascent and continuing for at least 48 hours while at high altitude. Patients should take extended-release capsules whole without crushing or chewing to maintain the intended release profile. Pediatric dosing for epilepsy and glaucoma is based on body weight, with a typical range of 8 to 30 mg/kg per day in divided doses. Furthermore, dose modification or contraindication is explicitly required in the presence of marked renal or hepatic impairment.

Recent Clinical Evidence

Diluran: Recent Clinical Evidence

Research on Drug Activity

Clinical and preclinical research has explored the proposed mechanism of action for Diluran (Acetazolamide), which is identified as a carbonic anhydrase inhibitor. This activity involves the potential to interfere with the enzyme carbonic anhydrase found in various tissues. Studies have examined how this inhibition relates to fluid management and electrochemical balance in the body, which may be relevant to its use in conditions like glaucoma, altitude sickness, and certain forms of epilepsy.


Key Clinical Study Findings

Clinical trials have been conducted to evaluate the effects of Diluran in various patient populations. For instance, studies have explored the impact of the drug on intraocular pressure in individuals with glaucoma, noting its potential to reduce the pressure. Research in specific neurological conditions has also been documented, though its use for some indications may be limited by the potential for tolerance development over time.

Safety and Tolerability

Available research has characterized the potential safety profile of Diluran across different study durations. The most frequently reported adverse events in clinical trials were generally mild to moderate and included paresthesia (a tingling or prickling sensation), gastrointestinal upset such as nausea and loss of appetite, and fatigue.

Serious adverse events, such as metabolic acidosis or severe skin reactions, have been documented and are a key focus for monitoring. The studies underscore the need for patients to be monitored for changes in electrolyte levels and kidney function during treatment.

Frequently Asked Questions (FAQ)

Common questions about Diluran (FAQ)

Q: Is Diluran considered a long-term treatment option?

A: Diluran is indicated for the management of certain chronic conditions, such as open-angle glaucoma. However, the official product information formally restricts its long-term administration for specific types of glaucoma. Additionally, regulatory documents note that potential risks, such as the development of kidney stones, are associated with prolonged therapy.


Q: Is Diluran the same type of medicine as [similar drug name]?

A: Diluran contains the active ingredient Acetazolamide, which is described in regulatory documents as belonging to the Carbonic Anhydrase Inhibitor (CAI) pharmacological class. The classification is distinct from certain other diuretics, and the mechanism of action varies across different drug classes.


Q: Do many people experience tiredness as a side effect of Diluran?

A: Official safety information documents fatigue and drowsiness as frequently reported adverse reactions. According to official labeling, these are some of the more commonly experienced side effects reported during treatment.


Q: How quickly do most people start to notice the effects of Diluran?

A: The onset of action for the immediate-release tablet form, when used to lower pressure in the eye, is generally described in official labeling as occurring within about one hour. The peak therapeutic effect is typically reached around two to four hours after a dose.


Q: What is the typical timeframe for Diluran to reach its full effect?

A: Official prescribing information describes the duration of effect for the immediate-release tablet form as generally lasting between 8 to 12 hours. For the extended-release capsules, the duration of effect is noted to be approximately 18 to 24 hours.


Q: Does Diluran require any special monitoring or lab tests?

A: Yes, official labeling recommends periodic laboratory tests during therapy. This includes monitoring serum electrolytes (minerals like sodium and potassium) and regular checks of the patient’s complete blood count (CBC) to monitor for potential side effects associated with this type of medicine.


Q: Are there known effects of Diluran on mood or mental health?

A: Adverse reactions listed in regulatory documents include confusion, excitement, and depression. Symptoms of altitude sickness treated with Diluran may also include mental/mood changes.


Q: Is Diluran available in different strengths or forms?

A: According to the official prescribing information, Diluran is manufactured as immediate-release tablets and extended-release capsules. It is also available in a formulation intended for intravenous injection for rapid use, with the strengths clearly defined in regulatory documents.


Q: Is it normal to feel slightly dizzy when first starting Diluran?

A: Dizziness is listed as a potential adverse reaction in the official safety information, alongside other nervous system effects such as drowsiness and paresthesia (a tingling or prickling sensation).


Q: Does Diluran show up on standard drug tests?

A: The active substance in Diluran is not a federally scheduled controlled substance. However, the substance is classified as a prohibited diuretic agent by organizations such as the World Anti-Doping Agency (WADA) due to its use to affect drug testing results in athletes.


Q: Are there known effects of Diluran on blood pressure readings?

A: As a diuretic, Diluran promotes the loss of sodium and water, which can be associated with effects on blood pressure. However, the drug is not officially classified as a primary medication for treating high blood pressure.


Q: Is there a generic version of Diluran available?

A: The active ingredient in Diluran, Acetazolamide, is available as a generic drug product from various manufacturers, as documented in drug approval databases.


Q: What should I know if I need surgery while taking Diluran?

A: The official label notes that choroidal effusion and choroidal detachment have been reported after the use of Diluran following ophthalmic surgery. The product literature also contains warnings regarding its interaction with high-dose salicylates (like aspirin), which is often relevant to surgical care.


Q: Is Diluran ever prescribed in combination with [another common drug]?

A: Diluran is formally indicated for use as adjunctive treatment in certain conditions, such as epilepsy. Official product literature also documents its use alongside some other medications, including certain diuretics and dexamethasone, in specific therapeutic contexts.


Q: Can Diluran interact with vitamins or minerals?

A: Official safety information notes that Diluran can affect the body's balance of electrolytes, which include minerals, potentially leading to low levels of potassium or sodium (hypokalemia or hyponatremia). Its interaction with specific vitamins is not extensively documented in regulatory sources.


Q: What is the general patient experience reported with Diluran?

A: Research documents that the most commonly reported experiences in studies include side effects such as paresthesia (a tingling sensation) and fatigue. For some specific uses, like managing acute mountain sickness, studies reported that patients had improvements in pulmonary function and better sleep compared to those receiving a placebo.


Q: Are there any official recommendations regarding regular eye exams while on Diluran?

A: While the drug is used to help manage glaucoma, the official label does not mandate specific, routine follow-up eye exams for all patients. However, the potential for a rare adverse reaction called transient myopia (temporary near-sightedness) and its contraindication in certain types of glaucoma suggest the general importance of ophthalmic monitoring.


Q: Are there known issues with stopping Diluran suddenly?

A: Regulatory information does not report classic withdrawal symptoms associated with sudden discontinuation. Official information suggests that for chronic conditions like glaucoma or epilepsy, abruptly stopping treatment may result in the return or worsening of the original symptoms.

How should Diluran be stored and disposed of?

How to Store and Dispose of Diluran (Acetazolamide)

The official label provides strict guidelines for storing Diluran (Acetazolamide) to maintain its stability.

  • Storage Temperature and Environment: Oral forms must be stored at controlled room temperature (typically 20 C to 25 C), and must not be stored above 25 C. The product must be kept from freezing and stored in its original container to protect from light and moisture.
  • Child Safety: All forms of the medicine must be stored out of the sight and reach of children.
  • In-Use Stability: For the injectable form, the reconstituted solution should be refrigerated (2 C to 8 C) and used within 3 days. If kept at room temperature, it must be used within 12 hours.
  • Disposal: Unused or expired medication must be disposed of in accordance with local regulations. It must not be flushed down a toilet or poured down a sink unless specifically authorized by the product label.

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

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