- Macimorelin Acetate
- Macitentan
- Macitentan
- Malathion
- Manidipine
- Mannitol
- Maprotiline
- Maprotiline Hydrochloride
- Maraviroc
- Marbofloxacin
- Maribavir
- Marmelosin
- Maropitant
- Maropitant Citrate
- Mavacamten
- Maytansine
- Mebendazole
- Mebeverine
- Mecamylamine
- Meclizine
- Meclocycline
- Meclofenamic Acid
- Medetomidine
- Mefenamic Acid
- Mefloquine
- Megestrol Acetate
- Meglumine
- Melatonin
- Meloxicam
- Melphalan
- Memantine
- Menaquinone
- Menthol
- Menthone
- Mephenytoin
- Mepivacaine
- Meprednisone
- Mepyramine maleate
- Mercaptopurine
- Meropenem
- Mertansine
- Mesalazine
- Mesna
- Metamizole
- Metaraminol
- Metaxalone
- Metconazole
- Metformin
- Methacycline
- Methadone
- Methazolamide
- Methcathinone
- Methenamine
- Methenolone Acetate
- Methionine
- Methisoprinol
- Methocarbamol
- Methotrexate
- Methoxsalen
- Methyl Prednisolone Suleptanate
- Methyl Salicylate
- Methyldopa
- Methylene Blue
- Methylergometrine
- Methylphenidate
- Methylprednisolone
- Metoclopramide
- Metolazone
- Metopimazine
- Metoprolol
- Metribuzin
- Metronidazole
- Metyrosine
- Mevastatin
- Mexiletine
- Mianserin
- Micafungin
- Miconazole
- Midazolam
- Midodrine
- Midostaurin
- Mifepristone
- Migalastat
- Miglitol
- Miglustat
- Milbemycin
- Mildronate
- Milrinone
- Minocycline
- Minoxidil
- Mirabegron
- Miriplatin
- Mirogabalin
- Mirtazapine
- Miscellaneous
- Misoprostol
- Mitomycin
- Mitoxantrone
- Mivacurium
- Mizolastine
- Moclobemide
- Modafinil
- Moexipril
- Molindone
- Molnupiravir
- Molsidomine
- Mometasone
- Monensin
- Monepantel
- Monocrotaline
- Montelukast
- Morantel
- Morphine
- Mosapride
- Moxidectin
- Moxifloxacin
- Moxonidine
- Mupirocin
- Mutilin
- Mycophenolate Mofetil
