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Maleic Acid

Medically reviewed by Last updated on Dec 16, 2021.

Excipient (pharmacologically inactive substance)

What is it?

Maleic acid (C4H4O4) is used as an industrial raw material. It appears as a white solid. The major industrial use of maleic acid is its conversion to fumaric acid. It is also used to prepare maleate salts for pharmaceuticals.[1]

Top medications with this excipient


  1. Maleic acid. Accessed February 21, 2015 at[1]

Further information

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