Nac (Acetylcysteine)

Acetylcysteine breaks disulfide bonds in mucus glycoproteins, reducing the viscosity of secretions. The sulfhydryl group also serves as a precursor for intracellular glutathione, helping to neutralize oxidative stress and supporting liver detoxification during toxic exposures.

The appropriate dose of Nac is determined by the prescribing healthcare professional based on the specific indication, patient age, weight, renal and hepatic function, and any concomitant therapies. Dosage regimens are individualized and should not be altered without medical guidance.

Safety data for acetylcysteine in pregnancy and lactation are limited. The decision to use Nac during pregnancy or while breastfeeding should be made by a qualified prescriber after weighing potential benefits against possible risks to the mother and fetus or infant.

To order Nac, submit an enquiry on the product page at gnhindia.com with the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Compared with other mucolytics such as carbocisteine or bromhexine, acetylcysteine directly cleaves disulfide bonds, offering rapid reduction in mucus viscosity. It also provides antioxidant benefits through glutathione replenishment, a property not shared by many alternative mucolytic agents.

Nac should be stored at ambient temperature, preferably below 25 °C, in its original packaging to protect it from moisture and direct sunlight. Keep the container tightly closed and out of reach of children.

Nac is supplied as a powder that can be reconstituted for oral, buccal or topical (cutaneous) use, depending on the prescribed formulation. Administration routes are selected by the prescriber to match the clinical indication and patient needs.

The most serious adverse reactions include anaphylaxis, severe skin reactions such as Stevens‑Johnson syndrome, bronchospasm (particularly in asthmatic patients), and hepatic dysfunction. Immediate medical attention is required if any of these events occur.

Nac should be avoided in individuals with known hypersensitivity to acetylcysteine or any excipients in the product. Patients with severe renal impairment, uncontrolled asthma, or those taking medications that may cause dangerous hypotension (e.g., high‑dose nitroglycerin) should use it only under close medical supervision.