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
A61K9/14 Particulate form, e.g. powders,; Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles