Zinc acetate is a zinc salt of acetic acid, used as a source of elemental zinc for oral supplementation. In the Indian context, it is primarily indicated for the treatment and prevention of zinc deficiency, which is a significant public health concern, particularly in children and pregnant women. Zinc plays a crucial role in numerous enzymatic processes, immune function, protein synthesis, wound healing, DNA synthesis, and cell division. The acetate salt is known for its relatively good bioavailability and is often preferred in formulations for acute diarrhea management in children as per WHO and IAP guidelines.
Adult: For deficiency: 20-50 mg of elemental zinc per day, usually as a single dose. For Wilson's disease: 50 mg three times daily (as per specific protocol).
Note: Take orally, preferably on an empty stomach (1 hour before or 2 hours after meals) for optimal absorption. If gastric irritation occurs, can be taken with food (but absorption may be reduced by 50%). Dispersible tablets should be dissolved in a small amount of water, breast milk, or ORS. Do not take with dairy products, high-fiber foods, or iron/calcium supplements simultaneously (space by 2-3 hours).
Zinc acts as a cofactor for over 300 enzymes, including those involved in nucleic acid metabolism, protein synthesis, and cell division. In acute diarrhea, it promotes regeneration of intestinal epithelium, enhances brush border enzyme activity (e.g., disaccharidases), boosts immune response against pathogens, and may reduce intestinal fluid secretion.
Pregnancy: Category A (Indian classification). Zinc requirements increase during pregnancy (11-12 mg/day). Supplementation is safe and often recommended, especially in vegetarian diets and for reducing preterm birth risk. Dose should not exceed 40 mg/day unless for specific deficiency.
Driving: No known effects on driving ability. Drowsiness is a rare side effect.
| Tetracycline & Fluoroquinolone antibiotics (e.g., Ciprofloxacin, Doxycycline) | Zinc binds to these antibiotics in the GI tract, significantly reducing their absorption and efficacy. | Major |
| Penicillamine | Zinc reduces the absorption and efficacy of penicillamine, used for Wilson's disease and rheumatoid arthritis. | Major |
| Iron supplements | Mutual inhibition of absorption. High doses of either can reduce absorption of the other. | Moderate |
| Calcium supplements / Thiazide diuretics | May reduce urinary excretion of zinc, potentially leading to increased zinc levels. | Minor |
| ACE Inhibitors (e.g., Lisinopril) | May cause increased taste disturbances. | Minor |
Same composition (Zinc acetate (20mg)), different brands: