| M | ||
| Magaldrate | Riopan | |
| Magnesium Salicylate | Magan | |
| Magnesium Sulfate | Epsom Salt | |
| Maprotiline HCI | Ludiornil | |
| Mazindol | Mazanor, Sanorex | |
| Mebendazole | Vermox | |
| Mecamylarnine HCI | Inversine | |
| Mechlorethamine HCI | Mustargen, HN2 | |
| Meclizine HCl | Antivert, Bonine | |
| Meclocycline Sulfosalicylate | Meclan | |
| Meclofenarnate Sodium | Meclomen | |
| Medroxyprogesterone Acetate | Provera, Depo-Provera | |
| Mefenamic Acid | Ponstel | |
| Mefloquine HCI | Lariam | |
| Megestrol Acetate | Megace | |
| Melphalan | Alkeran | |
| Mepenzolate Bromide | Cantil | |
| Meperidine HCI | Dernerol HCI | |
| Meperidine HCI & Promethazine | Mepergan | |
| Mephenytoin | Mesantoin | |
| Mephobarbital | Mebaral | |
| Mepivacain HCI | Carbocaine, Polocaine | |
| Meprobamate | Miltown, Equanil | |
| Meprobamate & Aspirin | Equagesic | |
| Mercaptopurine (6-MP) | Purinethol | |
| Mesalamine | Pentasa, Rowasa | |
| Mesna | Mesnex | |
| Mesoridazine | Serentil | |
| Metaproterenol Sulfate | Alupent, Metaprel | |
| Metaraminol | Aramine | |
| Methadone HCI | Dolophine HOI | |
| Methamphetamine HCI | Desoxyn | |
| Methazolamide | Neptazane | |
| Methenamine Hippurate | Hiprex, Urex | |
| Methenamine Mandelate | Mandelamine | |
| Methicillin Sodium | Staphcillin | |
| Methimazole | Tapazole | |
| Methocarbamol | Robaxin | |
| Methocarbamol & Aspirin | Robaxisal | |
| Methohexital Sodium | Brevital Sodium | |
| Methotrexate | Folex, Rheumatrex | |
| Methoxamine HCI | Vasoxyl | |
| Methoxsalen | Oxsoralen | |
| Methoxyflurane | Penthrane | |
| Methscopolamine Bromide | Parnine | |
| Methsuximide | Celontin Kapseals | |
| Methyclothiazide | Aquatensen, Enduron | |
| Methyclothiazide & Deserpidine | Enduronyl | |
| Methyleellulose Drops | Lacril, Isopto (Plain) | |
| Methyldopa | Aldomet | |
| Methylclopa & Hydrochlorothiazide | Aldoril | |
| Methylene Blue | Urolene Blue | |
| Methylergonovine Maleate | Methergine | |
| Methylphenidate HCI | Ritalin | |
| Methylprednisolone | Medrol | |
| Methylprednisolone Acetate | Depo-Medrol | |
| Methylprednisolone Sodium Succinate | A-MethaPred, | |
| Solu-Medrol | ||
| Methyltesosterone | Oreton Methyl, Android, Testred | |
| Methysergide Maleate | Sansert | |
| Metoclopramide HCI | Reglan | |
| Metolazone | Zaroxolyn | |
| Metoprolol | Lopressor | |
| Metoprolol Succinate | Toprol XL | |
| Metronidazole Flagyl, | Metrogel, Metryl, Metizol, Protostat | |
| Metyrosine | Demser | |
| Mexiletine HCI | Mexitil | |
| Mezlocillin Sodium | Mezlin | |
| Miconazole Nitrate | Micatin, Monistat | |
| Midazolarn HCI | Versed | |
| Milk of Magnesia (MOM) | Magnesium Hydroxide | |
| Milrinone Lactate | Primacor | |
| Mineral Oil Emulsion | Agoral Plain, Kondremul | |
| Minocycline HCI | Minocin | |
| Minoxidil | Loniten, Rogaine | |
| Misoprostol | Cytotec | |
| Mithramycin | Mithracin | |
| Mitomycin | Mutamycin | |
| Mitotane | Lysodren | |
| Mitoxantrone HCI | Novantrone | |
| Mivacurium Chloride | Mivacron | |
| Molindone HCI | Moban | |
| MOM (Milk of Magnesia) | Magnesium Hydroxide | |
| Moricizine HCI | Ethmozine | |
| Morphine Sulfate | Astramorph PF, Duramorph, | |
| MS Contin, Roxanol | ||
| Multi-Vitamin | Uni-Cap, Hexavitamin, Theragran | |
| Multi-Vitamin w/Minerals | Unicap-T, Theragran-M | |
| Mupirocin | Bactroban |