Calcium Silicate

Medically reviewed by Drugs.com. Last updated on Jan 27, 2025.

Excipient (pharmacologically inactive substance)

What is it?

Calcium silicate (Ca2SiO4), also known as calcium silicon oxide, is a product derived from limestone and diatomaceous earth, and is used in the pharmaceutical industry as an anticaking agent. Anti-caking agents absorb moisture and allow products to flow freely during the manufacturing process. Silicon dioxide and various silicates occur abundantly in the earth's crust, are present in practically all natural waters, animals, and plants, and are part of the normal human diet. They are typically used in very small amounts. The available evidence on the safety of sodium silicate indicates that it is low when consumed at defined concentrations.

Some examples of medications containing Calcium Silicate

• Abilify Discmelt 15 mg
• Abilify Discmelt 10 mg
• Carbidopa and Levodopa (Orally Disintegrating) 25 mg / 100 mg
• Carbidopa and Levodopa (Orally Disintegrating) 25 mg / 250 mg
• Carbidopa and Levodopa (Orally Disintegrating) 10 mg / 100 mg
• Erythromycin Delayed Release 500 mg
• Erythromycin Delayed Release 250 mg
• Felodipine Extended-Release 2.5 mg
• Felodipine Extended-Release 10 mg
• Felodipine Extended-Release 5 mg
• Rizatriptan Benzoate (Orally Disintegrating) 5 mg (base)
• Rizatriptan Benzoate (Orally Disintegrating) 10 mg (base)
• Udamin SP dietary supplement
• Viracept 250 mg
• Viracept 625 mg
• Ziprasidone Hydrochloride 20 mg
• Ziprasidone Hydrochloride 80 mg
• Ziprasidone Hydrochloride 40 mg
• Ziprasidone Hydrochloride 60 mg

Further information

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

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