Question

Aerosil is a pharmaceutical excipient and it is also called

• A. Spray drying lactose
• B. Calcium sulphate
• C. Colloidal silica
• D. HPMC

Hint:

Aerosil is highly effective as a glidant even at very low concentrations (0.1-0.5

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Aerosil is a brand name for a common pharmaceutical additive used to improve powder flow.

Step 2: Detailed Explanation:
Aerosil is chemically known as colloidal silicon dioxide or colloidal silica.
It is used in very small concentrations as a glidant to improve the flowability of granular materials during tableting and to prevent powder bridging.

Step 3: Final Answer:
Aerosil is commonly referred to as colloidal silica.