АЦЦ 200

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Medically reviewed

Marina Burgos

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 АЦЦ 200

What is АЦЦ 200: Core Identity and Pharmacological Class

Property Description
Active Ingredient Acetylcysteine (NAC)
Form Effervescent tablets, Granules for oral solution
Pharmacological Class Mucolytic agent
Common Use Reducing thickness of respiratory mucus (sputum)
Origin Synthetic substance (derivative of cysteine)

АЦЦ 200 is a brand formulation of a medicinal product whose active component is Acetylcysteine (N-acetyl-L-cysteine, or NAC). It is classified as a mucolytic agent and a secretolytic drug, targeting conditions characterized by highly viscous respiratory mucus. As a synthetic substance derived from the amino acid cysteine, it is chemically structured as a thiol compound. The product is identified for its ability to modify sputum consistency through its specific pharmacological properties.

Composition, Origin, and Dosage Form

The medicine is a single-component product (monopreparation), relying on Acetylcysteine as the therapeutic agent. АЦЦ 200 is typically supplied as flavored effervescent tablets or granules for oral solution, designed to be dissolved in water before consumption. This format allows for simplified administration and rapid transition to an oral solution; following the oral route of administration, the substance is absorbed systematically to perform its therapeutic function.

General Therapeutic Purpose and Key Benefit

The general therapeutic purpose of this mucolytic agent is the liquefaction and subsequent clearance of hyperviscous sputum that accumulates in the airways. The medication performs this action by chemically breaking the structural disulfide bonds that stabilize the large mucoprotein chains in the sputum. This reduction in mucus viscosity is the product’s key benefit, helping to alleviate the physical obstruction caused by thick phlegm and supporting the body’s natural ability to clear the respiratory tract.

What side effects are possible with АЦЦ 200?

Possible Side Effects and Safety Information

The official safety profile of Acetylcysteine (АЦЦ 200) details adverse reactions across several System-Organ Classes, as classified by government regulatory authorities. The majority of documented side effects are categorized by frequency, primarily affecting the gastrointestinal tract and involving the immune system.


Frequency-Classified Adverse Reactions

The incidence of adverse effects is estimated based on established regulatory frequency tiers:

  • Uncommon (e.g., in 1/1,000 to < 1/100 users): Includes symptoms such as Nausea, Vomiting, Headache, Tachycardia (increased heart rate), and various signs of Hypersensitivity (such as pruritus or rash).
  • Rare (e.g., in 1/10,000 to < 1/1,000 users): May include Dyspepsia or Bronchospasm (difficulty breathing).
  • Very Rare (e.g., in < 1/10,000 users): Documented reactions include Anaphylactic shock and Haemorrhage (bleeding).

Serious Safety Considerations and Constraints

Regulatory documents highlight the rare possibility of severe systemic reactions, including Anaphylactic shock and Severe Cutaneous Adverse Reactions (SCARs), such as Stevens-Johnson syndrome, which have been reported in temporal association with use. Specific safety notes apply to certain populations:

  • Hemorrhage Risk: Caution is advised for individuals with conditions predisposing them to bleeding, such as esophageal varices or peptic ulcers, due to the risk of Upper Gastrointestinal Hemorrhage.
  • Drug Interactions: The official label notes that concurrent use with nitroglycerin is associated with a risk of significant hypotension.
  • Time-Related Pattern: An increase in the volume of bronchial secretions (liquefaction) may be observed especially at the beginning of treatment.

This structured safety information establishes the official understanding of the medicine’s risk profile by defining the documented range and incidence of adverse events, from uncommon system-specific effects to very rare systemic safety concerns.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for an overdose of Acetylcysteine, the active ingredient in АЦЦ 200, describes a spectrum of documented clinical manifestations. These commonly include severe or persistent nausea, vomiting, and diarrhea, alongside signs of systemic overexposure such as widespread flushing, rash, hives (urticaria), pruritus (itching), headache, and fever.

Severe Systemic Outcomes and Emergency Actions

Overexposure carries the potential for severe systemic outcomes, including life-threatening anaphylaxis, marked hypotension (low blood pressure), and bronchospasm (difficulty breathing). Furthermore, severe high-dose exposure may lead to complications such as seizures or acute renal failure.

Due to these potential risks, urgent medical care is required if severe symptoms or any signs of systemic hypersensitivity develop. If an overdose is suspected, the administration of the medicine must be immediately discontinued. Official guidance mandates that patients seek immediate medical advice and receive symptomatic and supportive treatment, as no specific antidote is described for N-acetylcysteine toxicity itself. Monitoring of vital signs and laboratory parameters may be required, especially for low-weight patients or those with existing renal or hepatic impairment.

Therapeutic Uses of АЦЦ 200

What АЦЦ 200 Treats: Main Uses and Benefits

The medication is commonly used in situations involving certain distressing symptoms related to abnormally hyperviscous secretions (sputum) in the respiratory tract. The drug is indicated as adjuvant therapy for conditions involving abnormal, viscid, or inspissated mucous secretions. It helps address symptom clusters that include difficulty in expectoration and the sensation of chest congestion caused by heavy, sticky phlegm. The supportive benefit is that it may assist in providing relief that contributes to improved comfort and helps patients cope more steadily with these difficult manifestations.


Therapeutic Applications

This medication is generally used across conditions presenting with acute episodes where mucus retention is a primary problem, such as acute bronchitis, or in the long-term symptomatic management of conditions such as chronic bronchitis, bronchiectasis, and Cystic Fibrosis. Applied in settings where short-term symptomatic assistance or long-term supportive management is appropriate, it offers symptomatic relief that may help reduce the overall burden of persistent respiratory distress.

“The primary goal of this therapy is to address symptoms related to mucus thickness, contributing to easing the overall symptom load.”


Quick Fact: Relief for Thick Mucus
This medication is relevant for managing hyperviscous secretions (sticky, hard-to-clear phlegm); it is typically not used for dry, non-productive coughs.

Regulatory References

  1. Official FDA Labeling for Acetylcysteine Solution

Eligibility and Restrictions for Use

Eligibility and Contraindication Profile

Official regulatory documents define the population eligibility for oral Acetylcysteine (АЦЦ 200) by establishing absolute contraindications and conditional use requirements.

Classification Population/Condition
Absolutely Contraindicated Patients with known Hypersensitivity to Acetylcysteine; Patients with Active Peptic Ulceration; Children under 2 years of age
Use Not Recommended Pregnant women and Breastfeeding women (precautionary measure due to insufficient human safety data)
Conditional Use Required Patients with Bronchial Asthma (requires close monitoring); Patients with a History of Peptic Ulcer
Metabolic Restriction Patients with rare hereditary disorders, such as Fructose Intolerance or Lactase Deficiency, must avoid formulations containing certain excipients

Use is generally accepted for adults and adolescents (over 12 years) and for children aged 2 years and above, provided no contraindications exist.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines documented interactions based on official regulatory information for products containing Acetylcysteine.


Pharmacodynamic and Pharmacokinetic Interactions

The primary interaction domains involve products that affect the drug's efficacy or are chemically incompatible, necessitating careful administration or monitoring.

Interacting Product Categories:

  • Organic Nitrates (e.g., Nitroglycerin): Concomitant use may significantly increase the vasodilatory and antiplatelet effects of the nitrate. Monitoring is required due to the potential for enhanced action.
  • Antibiotics: Certain antibiotics, including Tetracyclines, Macrolides, and Chloramphenicol, may have their effectiveness reduced when taken at the same time as this product. This is often attributed to a potential chemical incompatibility.
  • Activated Charcoal: Administration of activated charcoal can reduce the absorption and effectiveness of this product.

Interaction Constraints and Requirements

Regulatory requirements establish constraints on the administration of these combinations:

  • Spacing Requirement: Antibiotics, particularly tetracyclines, must be administered separately from this product. A spacing requirement is necessary to mitigate the risk of reduced antibiotic efficacy.
  • Monitoring: Co-administration with Nitroglycerin requires a specific assessment of the patient's status due to the amplified effects. Use with certain other drugs, such as Carbamazepine, may require monitoring for potential changes in serum levels of one or both products.

Mechanism of Action

Direct Chemical Liquefaction of Sputum

This mechanism is centered on the acetylcysteine molecule's ability to act as a reducing agent via its free sulfhydryl group (—SH). This group directly targets and cleaves the disulfide bonds (S-S) that cross-link large mucin proteins. This thiol-disulfide interchange reaction causes the depolymerization of the highly viscous mucin network, resulting in a reduction in the sputum's viscosity and elasticity. This liquefaction represents the initial phase of action, which facilitates the mucociliary transport system and supports the physical mobilization of secretions from the airways.


Indirect Modulation of Cellular Redox Balance

A secondary mechanism involves the drug's role as a source of L-Cysteine, an essential precursor for the synthesis of cellular Glutathione (GSH). By supplying this rate-limiting component, the mechanism supports the replenishment of the endogenous GSH pool. This provides the cellular capacity for the neutralization of Reactive Oxygen Species (ROS) and the modulation of oxidative stress in the respiratory epithelium. This contribution supports the maintenance of the cellular redox balance, a factor in preserving the integrity of the airway lining.

Dosage and Administration Information

How to Use АЦЦ 200 (Acetylcysteine 200 mg)

The administration of АЦЦ 200 (Acetylcysteine 200 mg), typically supplied as an effervescent tablet or oral powder, is based on official prescribing instructions. Adherence to these guidelines ensures proper dosage and effective administration.


1. Preparation and Route

АЦЦ 200 is for oral use only. The effervescent tablet or powder must be dissolved completely in a full glass of drinking water immediately before consumption. The entire contents of the glass should be consumed after dissolution. Abundant fluid intake is generally recommended during the course of treatment.


2. Standard Dosage Schedule

Dosages must be followed according to age group as outlined in the prescribing information:

Age Group Standard Daily Dosing Regime Maximum Daily Dose (MDD)
Adults & Adolescents (over 14 years) 200 mg 2 to 3 times daily 600 mg
Children (6 to 14 years) 200 mg twice daily 400 mg
Children (2 to 5 years) 100 mg 2 to 3 times daily 300 mg

3. Special Administration Rules

  • Children Under 2: The use of oral acetylcysteine in children under 2 years of age is generally contraindicated or not recommended.
  • Drug Separation: This medicine should not be mixed with other medications in the same glass. Oral antibiotics should be taken at least two hours before or after АЦЦ 200 to avoid potential inactivation.
  • Course Duration: For short-term acute conditions, the treatment duration typically should not exceed 5 to 10 days. Treatment for chronic conditions requires medical supervision and may extend longer, but should not be initiated without consulting a healthcare professional.

Recent Clinical Evidence

Research evidence / Overview of studies for АЦЦ 200


Evidence for Use in Chronic Bronchitis and COPD

The research exploring Acetylcysteine's role in chronic respiratory conditions, such as Chronic Bronchitis and COPD, has primarily involved Randomized Controlled Trials (RCTs), many of which were placebo-controlled. These studies were designed to explore the substance's use in research protocols for managing chronic conditions. Researchers monitored outcomes related to chronic respiratory symptoms and overall disease progression.

In these trials, researchers primarily studied metrics such as the frequency of respiratory exacerbations and how symptoms related to chronic mucus production were measured over time. When exploring changes in lung function, findings were often mixed, indicating that research reported measurements of changes during the study period, but consistency across studies is a focus of ongoing discussion. Research so far contributes to understanding symptom patterns, but the certainty of generalized outcomes remains at a moderate level, due in part to variations across the different trial designs used.


Evidence for Use in Cystic Fibrosis

The evidence related to Acetylcysteine studied for Cystic Fibrosis (CF) is derived from RCTs and supplementary Observational Studies. Research explored the substance as an adjunctive agent; it was evaluated as an adjunctive component in research protocols for standard CF treatments. Study populations were defined as both children and adults with confirmed CF diagnoses. Researchers examined sputum properties, such as viscosity and clearance, and also measured lung function metrics.

Studies reported various physical measurements on sputum characteristics, which align with the observed changes in sputum properties in the research setting. However, reports describing changes in major functional outcomes, such as lung function, were mixed across different trial designs. It remains uncertain how to specifically isolate the contribution of this substance from the effects of the multiple other established treatments used in CF care.


Areas of Uncertainty and Research Gaps

This section summarizes where the evidence is available and where research gaps persist. A key area of ambiguity relates to the consistency of findings regarding Acetylcysteine's influence on maintaining stable lung function over time in chronic conditions. Findings were mixed across different study aggregates.

Evidence quality varies across studies when examining acute respiratory conditions, reflecting limitations such as small sample sizes. Research is needed to provide additional information for long-term outcomes, as the follow-up durations were limited in many trials. Finally, research does not determine whether an individual will respond similarly, as study results reflect the specific conditions under which they were conducted.

Frequently Asked Questions (FAQ)

Common questions about АЦЦ 200 (FAQ)


Q: What is the active ingredient in АЦЦ 200 and what is it used for?

АЦЦ 200 contains acetylcysteine (often abbreviated as NAC). It is a mucolytic agent, which means it helps to thin and loosen thick mucus and phlegm in the airways. It is used as a supportive treatment for acute and chronic respiratory diseases that involve the production of excessive, thick bronchial secretions, such as bronchitis, tracheitis, and cystic fibrosis.


Q: How does acetylcysteine work to treat respiratory conditions?

Acetylcysteine works by breaking down the disulfide bonds in the mucoproteins found in the mucus. By cleaving these bonds, the complex mucus molecules are broken down into smaller, less viscous units. This action reduces the thickness (viscosity) of the mucus, making it easier to cough up and clear from the respiratory tract. This is the mechanism by which it acts as a mucolytic.


Q: What is the typical dosage for АЦЦ 200?

For adults and adolescents over 14 years old, the typical dose is 200 mg two to three times a day (total daily dose of 400 mg to 600 mg). For children aged 6 to 14 years, the usual dose is 200 mg twice a day (total daily dose of 400 mg). Dosage forms like effervescent tablets should be dissolved in half a glass of water and taken after meals.


Q: Should АЦЦ 200 be taken with or without food?

It is generally recommended to take АЦЦ 200 after meals. Taking the medication after food may help to reduce the potential for gastrointestinal side effects. Always dissolve the effervescent tablet completely in water before drinking.


Q: Is АЦЦ 200 suitable for children?

АЦЦ 200 is generally suitable for children over the age of 6 at the recommended dosage of 200 mg twice daily. However, it should only be administered to children under the supervision of a physician, especially for chronic conditions. The specific dosage and form (e.g., granules for children) may vary depending on the child's age and weight, and physician's recommendation.


Q: What are the common side effects of acetylcysteine?

Common side effects, which are usually mild and temporary, may include:

  • Gastrointestinal issues: Nausea, vomiting, diarrhea, and abdominal pain.
  • Hypersensitivity reactions: Allergic reactions like rash and itching are possible but less common.

If you experience severe side effects, such as signs of a serious allergic reaction (difficulty breathing, swelling), or if side effects persist, contact a healthcare professional immediately.


Q: Can I take АЦЦ 200 with cough suppressants?

Cough suppressants (antitussives) and acetylcysteine are generally not recommended to be taken together. Acetylcysteine thins the mucus to make it easier to cough up. If a cough suppressant is taken at the same time, it can inhibit the cough reflex, leading to a build-up of the loosened secretions in the airways, which carries a risk of bronchial obstruction.


Q: What should I do if I miss a dose?

If you miss a dose of АЦЦ 200, take it as soon as you remember. If it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to make up for a missed one. Maintaining a consistent schedule is important for managing your condition.

How should АЦЦ 200 be stored and disposed of?

Storage and Disposal of Acetylcysteine (АЦЦ 200)

The storage and handling of this medication must align strictly with regulatory requirements to preserve its efficacy and ensure safety.


Official Storage Requirements

Requirement Condition (as per Official Labeling)
Temperature Do not store above 25 C (77°F).
Protection Keep the container/tube tightly closed to protect the effervescent formulation from moisture and humidity.
Container Store the product in its original container until the time of use.

Stability and Disposal Constraints

The medicine must be kept out of the sight and reach of children to prevent accidental ingestion. Once an effervescent tablet or granule is dissolved in water, the resulting solution must be used immediately.

For disposal, unused or expired Acetylcysteine must not be thrown away with household trash or poured into wastewater. The official instruction requires returning the product to a pharmacy or healthcare provider for proper pharmaceutical waste disposal.

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

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