In the pharmaceutical industry, talc serves various critical functions and is widely used in both solid and liquid dosage forms. One of its primary applications is as an excipient in tablet formulations. Talc is commonly used as a glidant, aiding in the flow of powder mixtures during tablet compression, which ensures uniform distribution of active pharmaceutical ingredients (APIs) and consistent tablet weight. Its lubricating properties also facilitate the ejection of tablets from molds and prevent sticking to manufacturing equipment, thereby improving production efficiency.

Moreover, talc serves as a diluent in tablet formulations, contributing to the bulkiness of tablets and ensuring proper compression and uniform distribution of APIs. Additionally, talc can act as a disintegrant, promoting the rapid breakup of tablets upon ingestion and facilitating drug dissolution and absorption in the gastrointestinal tract. In liquid dosage forms such as suspensions and emulsions, talc functions as a stabilizing agent, preventing particle aggregation and ensuring product homogeneity and stability over time. Its ability to absorb excess moisture also helps to prevent caking and maintain the flow properties of powdered formulations.

Furthermore, talc is used in topical pharmaceutical formulations such as creams, ointments, and powders, where it serves as a lubricant, absorbent, and bulking agent. Its fine particle size and inert nature make it suitable for use on sensitive skin, and it helps to improve the spreadability and texture of topical preparations. Overall, talc plays a crucial role in the pharmaceutical industry, contributing to the quality, efficacy, and manufacturability of various drug products while ensuring compliance with regulatory standards for safety and performance.