Drugs: M
- Macadamia Nut 1 company
- Macimorelin 2 companies
- Macitentan 15 companies
- Macitentan and Tadalafil 1 company
- Mackerel 1 company
- Maclura Pomifera Pollen 1 company
- Mafenide 1 company
- Magnesium Cation 16 companies
- Magnesium Cation and Potassium Cation and Sodium Cation 8 companies
- Magnesium Cation and Potassium Cation and Sodium Sulfate 2 companies
- Magnesium Cation and Sodium Sulfate and Sulfate Ion 7 companies
- Magnesium Chloride, Dextrose Anhydrous, Lactic Acid, Sodium Chloride, Sodium Bic 1 company
- Malathion 1 company
- Malt Extract, Barley 2 companies
- Manganese Cation (2+) 2 companies
- Mangifera Indica Pollen 1 company
- Mango 1 company
- Mannitol 6 companies
- Mannitol and Sorbitol 1 company
- Maralixibat 1 company
- Maraviroc 8 companies
- Margetuximab 2 companies
- Maribavir 1 company
- Marstacimab 1 company
- Mavacamten 1 company
- Mavorixafor 1 company
- Mebendazole 2 companies
- Mebrofenin 3 companies
- Mecamylamine 4 companies
- Mecasermin 2 companies
- Mechlorethamine 1 company
- Meclizine 8 companies
- Meclofenamic Acid 1 company
- Medicago Sativa Pollen 2 companies
- Medronic Acid 1 company
- Medroxyprogesterone 12 companies
- Mefenamic Acid 3 companies
- Mefloquine 2 companies
- Megestrol 7 companies
- Melaleuca Quinquenervia Pollen 2 companies
- Melilotus Albus Pollen 2 companies
- Melilotus Albus Pollen and Melilotus Officinalis Pollen 1 company
- Melilotus Officinalis Pollen 1 company
- Melopsittacus Undulatus Feather 1 company
- Meloxicam 30 companies
- Meloxicam and Rizatriptan 1 company
- Melphalan 3 companies
- Memantine 28 companies
- Meperidine 7 companies
- Mepivacaine 10 companies
- Mepolizumab 1 company
- Meprobamate 5 companies
- Mercaptopurine 3 companies
- Meriones Unguiculatus Skin 1 company
- Meropenem 18 companies
- Meropenem and Vaborbactam 1 company
- Mesalamine 30 companies
- Mesocricetus Auratus Skin 2 companies
- Metavex 1 company
- Metaxalone 13 companies