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Calcium Stearate

Medically reviewed by Last updated on Oct 10, 2023.

Excipient (pharmacologically inactive substance)

What is it?

Calcium stearate (C36H70CaO4) is a mixture of calcium oxide with solid fatty acids such as stearic and palmitic acids. It is used as pharmaceutical excipient in manufacturing and used for tablet and capsule lubrication. It has good anti-adherent and lubricant properties but poor glidant properties. Calcium stearate is also used in cosmetics and food products.[1]

Calcium stearate is used in oral drug formulations and is reported as nontoxic and nonirritant. It is listed on the FDA Generally Regarded as Safe database.[1][2]

List of medications using Calcium Stearate


  1. Medicines Complete. Pharmaceutical Excipients. Monographs. Copovidone. Accessed April 8, 2012.
  2. FDA’s SCOGS database; calcium stearate; SCOGS-Report Number: 59; Accessed April 9, 2012.

Further information

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