Last update May 18, 2026

Ammonium Chloride

Likely Compatibility

Fairly safe. Mild or unlikely adverse effects. Compatible under certain circumstances. Follow-up recommended. Read Commentary.

Ammonium chloride is used intravenously as an acidifying agent in severe metabolic alkalosis. It is also used orally to acidify the urine and as a diuretic and expectorant due to its irritant properties on the respiratory mucosa (other salts such as acetate, bicarbonate, carbonate or citrate have also been used as expectorants). Oral use of this medicine, and its use in general, has fallen into disuse due to its limited efficacy and its irritating effects on the gastric mucosa.

As of the date of the last update, we have found no published data on its excretion in breast milk.

After being absorbed in the intestine, it is rapidly metabolised in the liver to urea.

The small amounts of ammonium present in cough medicines are unlikely to affect breastfeeding or the infant.

It is advisable to avoid this medicine due to its ineffectiveness or to use it sparingly whilst breastfeeding.

It has multiple industrial uses: fertilisers, explosives, metallurgy (tinning, galvanising and welding), batteries, detergents, etc. Exposure limits in these industries must be maintained at TLV (as TWA): 10 mg/m³ and TLV (as STEL): 20 mg/m³. Ammonium chloride has no R-phrases (risk phrases) or specific recommendations for breastfeeding. It is also used in the food industry as an emulsifying and flavouring additive (E510); to be avoided.

Alternatives

We do not have alternatives for Ammonium Chloride.

Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.

Other names

Ammonium Chloride is also known as


Ammonium Chloride in other languages or writings:

Tradenames

Main tradenames from several countries containing Ammonium Chloride in its composition:

  • Omega 100 Expectorante™. Contains other elements than Ammonium Chloride in its composition
  • Pidrol™. Contains other elements than Ammonium Chloride in its composition
  • Quelidrine™. Contains other elements than Ammonium Chloride in its composition

Pharmacokinetics

Variable Value Unit
Molecular weight 54 daltons

References

  1. INSHT - Instituto Nacional de Seguridad e Higiene en el Trabajo. Límites de exposición profesional para agentes químicos en España. - 2024 Full text (link to original source) Full text (in our servers)
  2. FDA. U.S. Food & Drug Administration Part 184.1- Substances added directly to human food affirmed as generally recognized as safe (GRAS). CFR. 2023 Full text (link to original source) Full text (in our servers)
  3. Acofarma. Cloruro amónico. Ficha técnica. 2005 Full text (in our servers)
  4. IPCS. Cloruro amónico. Ficha internacional de Seguridad Química. 2005 Full text (in our servers)

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