A HUMAN NECESSITIES
A61 MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61K PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K31/00 Medicinal preparations containing organic active ingredients
A61K31/66 Phosphorus compounds
A61K31/661 Phosphorus acids or esters thereof not having P—C bonds, e.g. fosfosal, dichlorvos, malathion; or mevinphos