A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K9/00—Medicinal preparations characterised by special physical form
A61K9/0002—Galenical forms characterised by the drug release technique; Application systems commanded by energy
A61K9/0004—Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas
A—HUMAN NECESSITIES
A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K9/00—Medicinal preparations characterised by special physical form
A61K9/20—Pills, tablets, discs, rods
A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms