About ammonium chloride
Expectorant and urinary acidifier
Used for
- Helps loosen mucus in productive coughs; evidence of benefit is limited.
- May be used to acidify urine in selected medical situations.
Usual adult dose
For cough, follow the product label; dosing varies by formulation. Urinary acidification requires clinician-directed dosing.
Common side effects
- Nausea or vomiting
- Stomach irritation
- Drowsiness or confusion with excessive doses
Important warnings
- Avoid with severe kidney or liver disease, or metabolic acidosis.
- Excessive use can cause dangerous blood acidity and electrolyte disturbances.
- Seek medical advice for persistent cough or breathing difficulty.
Pregnancy
Safety information is limited; use only if a clinician considers it necessary.
Breastfeeding
Safety information is limited; use only if a clinician considers it necessary.
Interactions
- May interact with medicines affected by urine acidity, including some stimulants and urinary antiseptics.
- Antacids and alkalinising medicines can oppose its acidifying effect.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.