| Ocufen Eye Drops (40 x 0.4ml) and/or Equivalents | Ocufen Eye Drops | 
| Ocuflox Eye Drops and/or Equivalents | Apo-Ofloxacin Eye Drops, Ocuflox, Ofloxacin Eye Drops | 
| Ocupress and/or Equivalents | Teoptic, Teoptic Eye Drops | 
| Odefsey and/or Equivalents | Odefsey | 
| Oesclim Patches and/or Equivalents | Oesclim Patches 25, Oesclim Patches 50 | 
| Olbetam and/or Equivalents | Olbetam | 
| Olux E Foam and/or Equivalents | Olux E Foam | 
| Omnaris Nasal Spray and/or Equivalents | Ciclesonide Nasal Spray, Omnaris Nasal Spray | 
| Onbrez Breezhaler and/or Equivalents | Onbrez Breezhaler | 
| One-Alpha and/or Equivalents | Alfacalcidol, One-Alpha | 
| One-Alpha Injection and/or Equivalents | One-Alpha Ampoules | 
| Onglyza and/or Equivalents | Onglyza | 
| Optivar and/or Equivalents | Optilast | 
| Oracea and/or Equivalents | Apprilon | 
| Oralair and/or Equivalents | Oralair 100IR, Oralair 300IR | 
| Orap and/or Equivalents | Pimozide, Orap | 
| Orbenin and/or Equivalents | Cloxacillin, Novo-Cloxacillin, Novo-Cloxin | 
| Orinase and/or Equivalents | Tolbutamide | 
| Ornidazole and/or Equivalents | Ornidazole | 
| Ortho 0.5/35 and/or Equivalents | Ortho 0.5/35 | 
| Ortho Cyclen and/or Equivalents | Cilest, Cyclen 21, Cyclen 28 | 
| Ortho Tri-Cyclen and/or Equivalents | Tri-Cyclen 21 Discreet, Tri-Cyclen 28 Discreet | 
| Ortho Tri-Cyclen Lo and/or Equivalents | Apo-Tricira Lo 21, Apo-Tricira Lo 28, Tri-Cyclen Lo 21, Tri-Cyclen Lo 28, Tricira Lo 21, Tricira Lo 28 | 
| Ortho-Evra and/or Equivalents | Evra, Evra Patch | 
| Ortho-Novum 1/50 (21 Day) and/or Equivalents | Norinyl 1 |