A HUMAN NECESSITIES
A61 MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61K PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
9/00 Medicinal preparations characterised by special physical form
A61K9/20 Pills, tablets,; discs, rods
A61K9/2004 Excipients; Inactive ingredients
A61K9/2022 Organic macromolecular compounds
A61K9/205 Polysaccharides, e.g. alginate, gums; Cyclodextrin
A61K9/2054 Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose