Croscarmellose sodium is a type of modified cellulose that is commonly used as a disintegrant in the pharmaceutical industry. It helps tablets and capsules break apart and dissolve in the digestive tract, which is important for the proper release and absorption of the active ingredients. Croscarmellose sodium is a non-toxic and non-irritating substance that is generally considered safe for use in medicinal products. It is widely used as a excipient in solid oral dosage forms, such as tablets and capsules, and is also used in some topical formulations.