The disclosure is directed to fine particle croscarmellose and its use in various compositions such as solid dosage forms. More specifically the present disclosure relates to fine particle croscarmellose having a median particle size of 5 �m to 36 �m and a volume mean diameter of 40 �m or less. The specific surface area is typically 0.3 m2/g or more. The fine particle croscarmellose is useful as a disintegrant.