| Macrobid and/or Equivalents | Macrobid | 
| Macrodantin and/or Equivalents | Nitrofurantoin Macrocrystals, Teva-Furantoin, Macrodantin, Teva-Nitrofurantoin | 
| Malarone and/or Equivalents | Malarone Pediatric, Atovaquone/Proguanil, Malarone | 
| Mandelamine and/or Equivalents | Mandelamine | 
| Marcaine Ampule and/or Equivalents | Marcain | 
| Marcaine Vial and/or Equivalents | Marcaine Solution Unit Dose, Marcaine Solution | 
| Marevan and/or Equivalents | Marevan | 
| Marvelon and/or Equivalents | Ethinyl Estradiol/Desogestrel, Freya 21, Freya 28, Marvelon, Marvelon 28, Mirvala 21, Mirvala 28, Reclipsen 21, Reclipsen 28 | 
| Matulane and/or Equivalents | Matulane | 
| Mavik and/or Equivalents | Mavik, Trandolapril | 
| Maxalt and/or Equivalents | Rizatriptan, Act-Rizatriptan, Apo-Rizatriptan, Co-Rizatriptan, Maxalt | 
| Maxalt RPD and/or Equivalents | Maxalt RPD, Mylan-Rizatriptan ODT, Rizatriptan ODT, Maxalt Melt RPD, Sandoz-Rizatriptan ODT | 
| Maxidex Ophthalmic Ointment and/or Equivalents | Maxidex Ophthalmic Ointment | 
| Maxidex Ophthalmic Suspension and/or Equivalents | Maxidex Ophthalmic Suspension | 
| Maxitrol Ophthalmic Drops and/or Equivalents | Maxitrol | 
| Maxitrol Ophthalmic Ointment and/or Equivalents | Maxitrol Ophthalmic Ointment | 
| Mebeverine and/or Equivalents | Mebeverine | 
| Medrol and/or Equivalents | Medrol, Medrone | 
| Mefoxin Injectable and/or Equivalents | Cefoxitin Injection, Cefoxitin Vial Injectable | 
| Mefoxin Vial Injectable and/or Equivalents | Cefoxitin Injection | 
| Megace and/or Equivalents | Megestrol | 
| Megace Suspension and/or Equivalents | Megace Suspension | 
| Menopur Injection and/or Equivalents | Menopur Injection, Menopur Injection 10 x 75iu + 1ml Solvent | 
| Mepron Suspension and/or Equivalents | Mepron | 
| Meptid Ampoules and/or Equivalents | Meptid Ampoules |