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Ammonium Phosphate Dibasic

Medically reviewed by Last updated on Sep 20, 2021.

Excipient (pharmacologically inactive substance)

What is it?

Ammonium phosphate dibasic ((NH4)2HPO4), also known as diammonium phosphate and diammonium hydrogen phosphate, is a water-soluble ammonium phosphate salt that is produced when ammonia reacts with phosphoric acid. Ammonium phosphate dibasic has various industrial uses, including as a yeast nutrient in winemaking and to aid in cheese culturing, as a phosphate source in fertilizers, and as a component of commercial fire-fighting materials. In pharmacy, it has been as an antirheumatic.

Top medications with this excipient


  1. Wikipedia. Diammonium phosphate. Accessed January 12, 2014.
  2. International Plant Nutrition Institute. Nutrient Source Specifics: Diammonium Phosphate (PDF). Retrieved 1/12/2014.$FILE/NSS-17%20Diammonium%20Phosphate.pdf
  3. Medical Dictionary. dibasic ammonium phosphate. Accessed 1/12/2014.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.