ACC extra

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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 ACC extra

ACC extra is a brand-specific medication whose primary active substance is Acetylcysteine, recognized in clinical practice as an effective mucolytic agent used to help alleviate discomfort caused by thick secretions in the respiratory passages.


Quick Facts

Property Description
Active ingredient Acetylcysteine (NAC)
Form Effervescent tablet (dissolved for oral solution)
Pharmacological class Mucolytic agent
Common use Reducing viscosity of respiratory secretions
Origin Derived/Synthetic analog (of L-cysteine)

What Type of Medicine is ACC extra and What is it Made Of? (Identity and Composition)

ACC extra is a single-ingredient pharmaceutical preparation containing the active substance Acetylcysteine, also chemically referred to as N-acetyl-L-cysteine (NAC). This compound is a derived/synthetic analog—meaning it is chemically modified from the naturally occurring amino acid L-cysteine and is firmly placed within the mucolytic agent pharmacological class.

The key differentiating feature of the active component is its direct chemical action: Acetylcysteine breaks the disulfide bonds within the mucin proteins that characterize thick, sticky mucus. This mechanism of depolymerization allows the preparation to physically liquefy the secretions, a process clinically recognized for facilitating easier clearance of tenacious phlegm from the airways.

What is the Dosage Form of ACC extra and Its General Purpose? (Form and General Benefit)

The medication is specifically supplied in the effervescent tablet form, which is designed for rapid dissolution in water, enabling the oral route of administration as an ingestible solution. This specialized dosage form is often preferred for patients who may have difficulty swallowing standard tablets.

The central therapeutic purpose of this preparation is to provide effective relief from respiratory congestion by assisting the body in the process of expectoration. By thinning these secretions, the medicine aids in clearing the airways. Furthermore, the substance is recognized for its dual function as a powerful glutathione precursor, which enhances the body's antioxidant capacity within the respiratory system.

What side effects are possible with ACC extra?

Possible Side Effects and Safety Information

The safety profile for ACC extra, which contains the active substance Acetylcysteine, is officially documented and classified by regulatory authorities based on the nature and frequency of adverse reactions. These effects are systematically grouped according to the specific physiological systems they affect.

Frequency-Classified Adverse Reactions

Adverse reactions classified as uncommon (occurring in up to 1 in 100 patients) often involve the gastrointestinal system, presenting as nausea, vomiting, or diarrhea. General systemic effects in this category include headache, fever, and transient changes in heart rate (tachycardia) or blood pressure (hypotension). Signs of hypersensitivity, such as pruritus, rash, and urticaria, are also defined as uncommon.

Reactions categorized as very rare (occurring in fewer than 1 in 10,000 patients) include the potential for severe, immediate systemic responses like anaphylactic shock and severe skin reactions, such as Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN). These serious reactions are noted to potentially occur early in the course of treatment.

Population and Contextual Safety Notes

Specific safety considerations are noted in official labeling for certain patient groups. Caution is advised for individuals with a hyperreactive bronchial system, such as those with asthma, due to the potential for bronchospasm. The preparation should be used cautiously in patients with a current or past history of peptic ulcer disease. Due to the excipient composition necessary for the effervescent form, the sodium content is a specific consideration for individuals following a strictly low-sodium diet. Mucolytic agents are contraindicated in children under two years of age.

Overdose and Emergency Response

Overdose and when to seek help

The following information is strictly based on documented descriptions of overdose and mandated emergency actions found in government regulatory documents.

Documented Overdose Presentations

Official prescribing information outlines that acute excessive ingestion of oral Acetylcysteine (the active ingredient in ACC extra) is primarily associated with gastrointestinal symptoms. The manifestations documented in these cases include nausea, vomiting, and diarrhoea.

Overdose management is characterized by the regulatory statement that no specific antidote is known for the substance itself.

Emergency Actions and Supportive Care

In the event of a suspected or confirmed overdose, immediate medical attention must be sought without delay. Regulator-mandated treatment is symptomatic and supportive, with specific procedural steps described for clinical management.

These measures are guided by the patient's condition and may include maintaining clear airways, potentially through bronchial suction. Additionally, gastric lavage is described as a possible intervention, though its applicability is generally limited to a short timeframe following acute ingestion. Treatment and monitoring are required to be adjusted as indicated by the patient's clinical condition.

Therapeutic Uses of ACC extra

What ACC extra Treats: Main Uses and Benefits

The primary therapeutic utility of ACC extra, which contains the mucolytic agent Acetylcysteine, is centered on relieving symptoms related to physical discomfort driven by the production of thick, stubborn, or excessive phlegm. The substance is commonly used in conditions characterized by viscid, or inspissated mucous secretions.

The medication is applied in clinical settings that involve acute or chronic symptom patterns across conditions presenting with systemic or localized discomfort, including Acute Bronchitis, Chronic Bronchitis, COPD, Bronchiectasis, and specialized muco-obstructive disorders like Cystic Fibrosis. It helps ease the symptoms that create noticeable physiological strain by supporting the patient in coping more steadily with thick secretions. This action is commonly used in settings where symptoms become more noticeable and supportive symptom management is appropriate.


Quick Fact: Relief for Respiratory Congestion

Symptom Domain General Benefit Provided
Viscous Secretions Supports the management of symptoms related to viscid secretions.
Impaired Expectoration May assist with easing the strain associated with coughing.
Chronic Phlegm Burden Helps support airway secretion clearance during periods of heightened symptoms.

Regulatory References

  1. NIH StatPearls overview on N-Acetylcysteine

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use ACC extra — Official Regulatory Information

The eligibility profile for this medicine is strictly defined by government regulatory documents, outlining populations permitted to use it and those for whom use is prohibited or restricted.

Classification Official Regulatory Rule
Allowed Age Groups Use is permitted for adults and adolescents from 14 years of age under standard labeled conditions.
Absolute Contraindications Use is strictly prohibited for patients with known hypersensitivity to acetylcysteine or any excipient, and for patients with active peptic ulceration. The medicine is contraindicated in children under 2 years.
Age and Strength Restriction The 600 mg strength is not recommended for children and adolescents less than 14 years, as other lower strengths are typically deemed more appropriate.
Comorbidity Restrictions Caution is required in patients with bronchial asthma (immediate discontinuation is advised if bronchospasm occurs) and those with a history of peptic ulcer disease. Patients with certain hereditary metabolic disorders (e.g., total lactase deficiency) must not use the effervescent tablet due to excipient content.
Pregnancy and Lactation Status Use during pregnancy is not recommended due to limited clinical data. Use during breastfeeding should only be considered after careful professional assessment.

Official regulatory documents establish clear boundaries for the use of this medicine. Use is defined by absolute prohibitions based on known allergies and active disease states, and by age thresholds that restrict the high 600 mg strength to those 14 and older. Furthermore, the profile mandates conditional use for specific populations, such as those with respiratory conditions or a reduced physiological ability to clear secretions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation for Acetylcysteine (ACC extra) primarily describes interactions related to physical incompatibility, chemical reactions, and their resulting administration constraints.

Interaction Type Interacting Substance(s) Official Regulatory Statement
Pharmacodynamic Antitussives (Cough Suppressants) Co-administration is advised against due to the pharmacodynamic conflict. The liquefying effect of Acetylcysteine requires an active cough reflex for clearance; suppression of coughing may lead to a dangerous build-up of bronchial secretions.
Chemical Inactivation Oral Antibiotics (e.g., Tetracyclines, Ampicillin, Cephalosporins) Acetylcysteine can chemically reduce the efficacy of certain antibiotics. To prevent the risk of inactivation, a mandatory administration separation is required.
Exposure Modification Activated Charcoal The adsorbent effect of activated charcoal may reduce the absorption of Acetylcysteine, resulting in decreased systemic exposure.
Systemic Potentiation Nitroglycerin (Glyceryl Trinitrate) Concomitant use potentiates the vasodilatory effect, which may result in documented outcomes such as significant hypotension and potential headaches.

Timing and Procedural Constraints

Oral antibiotics must be administered separately with an interval of at least two hours before or after the Acetylcysteine dose, as stated in regulatory labels. Furthermore, it is not recommended to mix Acetylcysteine with any other medicinal product in the same solution during preparation or administration. No specific metabolic (CYP-mediated) or transporter-based interactions are documented in the official prescribing information for the mucolytic use. No population-specific adjustments to the interaction profile are officially noted.

Mechanism of Action

Direct Chemical Breakdown (Mucolysis)

This mechanism involves a direct chemical interaction with the structure of thick secretions. Acetylcysteine utilizes its free sulfhydryl group (—SH) to act as a reducing agent, specifically cleaving the disulfide bonds (S-S) that cross-link the long strands of mucin glycoproteins. This process rapidly depolymerizes the mucin network, leading to a reduction in the viscosity and elasticity of the bronchial secretions.


Modulation of Clearance and Cellular Redox State

The resulting liquefaction of secretions modulates the rate of mucociliary clearance, as the thinned material is more easily transported by the ciliated epithelium. Furthermore, the substance serves as a precursor by providing bioavailable L-Cysteine, the rate-limiting substrate necessary for the synthesis of the major cellular antioxidant, Glutathione (GSH). This action contributes to the maintenance of the cellular redox state against damage from oxidative stress, thereby influencing the cellular thiol status of the airway tissue.

Dosage and Administration Information

How ACC extra is Used: Official Administration Guidelines

This section details the usage instructions for ACC extra (Acetylcysteine 600 mg effervescent tablet). The use protocol is standardized regarding dose, method of intake, and duration of therapy.


Standardized Dosing and Schedule

Parameter Official Instructions
Route of Administration Oral route, via an ingestible solution.
Dosing Regimen Adults and adolescents (14 years and older) use a total daily dose equivalent to 600 mg of Acetylcysteine.
Frequency Once daily (one 600 mg effervescent tablet) or in two divided doses (e.g., 300 mg twice daily).
Duration Limit The medication should not be used for more than 14 days without clinical consultation.

Administration and Timing Protocols

To ensure proper intake, the effervescent tablet must be dissolved completely in a full glass of water before consumption. Administration is generally advised to occur after meals.

There are specific timing constraints related to the drug's purpose: the last dose of the day should be administered no later than four hours before bedtime to facilitate proper action. Furthermore, to avoid potential incompatibilities, the tablet should not be co-dissolved with any other medicines, and a separation of at least two hours is required between the intake of this medicine and most oral antibiotics.

Age Restriction: The 600 mg strength is explicitly not for use in children under 14 years of age due to the high active substance content.

Recent Clinical Evidence

Research evidence / Overview of studies for ACC extra

Evidence for use in Chronic Bronchitis and COPD

Research was studied for the long-term application in conditions characterized by cycles of stability and flare-ups, specifically in adult populations with Chronic Bronchitis and Chronic Obstructive Pulmonary Disease (COPD). Studies conducted in this area primarily rely on meta-analyses that combine data from numerous large, controlled trials. These trials were typically designed to observe patients over extended time intervals.

The primary metrics research examined included patterns in the frequency of respiratory exacerbations (flares) and patient-reported health status. Research also examined the substance in metrics tracking changes in lung function, such as the FEV1 value, over observation periods lasting six months up to several years. Findings indicate patterns observed in the studies related to exacerbation frequency across the studied populations. Research contributes to the broader evidence landscape regarding symptom patterns during periods of heightened symptom activity.

Evidence for managing Viscous Respiratory Secretions

The active component, Acetylcysteine, was studied for research scenarios in addressing the outcomes related to physical discomfort caused by thick respiratory secretions. Research examined the use of the substance during episodes where symptoms become more noticeable, such as during an Acute Exacerbation of COPD (AECOPD). The evidence derived from these settings often comes from short-term randomized controlled trials designed to observe responses over defined time intervals.

These studies focused on outcomes related to physical discomfort by monitoring the physical properties of sputum, such as viscosity and volume. Studies also monitored patient-reported outcomes describing perceived discomfort, including the ease of expectoration and outcomes describing episodic or acute changes in symptoms. Research provides insight into short-term changes in these metrics.

Evidence consistency and research gaps

Research contributes to the broader evidence landscape, but some findings were mixed across studies, particularly when measuring certain objective outcomes. Evidence quality varies across studies, and limitations include that sample sizes were modest in some of the smaller trials. Long-term effects on the decline of lung function are not fully established, and there is limited information for outcomes that require monitoring over several years. The study results reflect the specific conditions under which they were conducted and research does not determine whether an individual will respond similarly.

Frequently Asked Questions (FAQ)

Common questions about ACC extra (FAQ)

Q: Does this medication cause drowsiness or make you feel sleepy?

A: Official regulatory documents indicate that this medication may cause drowsiness or dizziness. Because of these potential effects on the central nervous system, this may be relevant to individuals who operate machinery or drive, as these effects are noted in the official product information.

Q: Can I drink alcohol while taking this medicine?

A: Official product information notes a potential interaction with alcohol. This is because alcohol may increase the risk of specific effects on the central nervous system (CNS), potentially leading to enhanced drowsiness or dizziness.

Q: Is this medication safe to use if I am pregnant or breastfeeding?

A: The official product labeling, found in regulatory sources, contains specific guidance regarding the use of this medicine during pregnancy and lactation (breastfeeding). This information details potential risks to the fetus or infant. The complete official documentation contains the relevant recommendations for these specific populations.

Q: What is the shelf life of this drug after I open the bottle?

A: Regulatory documents include instructions for the general storage of the product, which usually includes the overall expiry date for the sealed product. However, information detailing the specific stability or expiration period of the product after the bottle has been opened may not be explicitly addressed in the official regulatory label.

Q: Can I take this medication for a migraine headache?

A: Official regulatory sources list the approved therapeutic indications for this medicine. While the drug is indicated for the relief of pain, a migraine headache specifically may not be listed as an approved or recommended use on the product label.

Q: Is it safe to take this medication for a long period of time?

A: Official labeling includes warnings and precautions regarding the use of this medicine. These sections may specifically address risks associated with long-term use or prolonged treatment duration. The regulatory documents also outline necessary monitoring of adverse effects during continued use.

Q: What if I take too much of this medicine? What are the overdose symptoms?

A: Regulatory documents contain a specific section dedicated to Overdosage. This information details the recognized signs and symptoms of taking too much medicine, as well as the immediate management strategies for an overdose event. Official resources detail the appropriate steps and management for an overdose event.

Q: Can children under 12 years old use this product?

A: The official product information includes a section on Pediatric Use. This section explicitly defines the approved patient populations, specifying the precise age groups for which the drug is either indicated (approved for use) or contraindicated (should not be used).

How should ACC extra be stored and disposed of?

Storage Conditions

Official labeling requires ACC extra to be stored in its original package to ensure protection from moisture and light. The product must be kept at a temperature not exceeding 25 C or 30 C, as specified by the manufacturer's regulatory documentation. For effervescent tablets, the container must be kept tightly closed.

Stability and Child Safety

Once the product is dissolved (reconstituted), the solution must be administered immediately due to limited stability. All medicine must be kept out of the sight and reach of children as a mandatory safety requirement.

Disposal Instructions

Any unused or expired product must be disposed of in accordance with local requirements. Official documents prohibit discarding the medicine via wastewater or household waste; instead, it should be returned to a pharmacy or designated collection program.

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

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