| Isoniazid and/or Equivalents | Isoniazid, Pms-Isoniazid | 
| Isoniazid Syrup and/or Equivalents | Isoniazid Syrup, PDP-Isoniazid Syrup | 
| Isoptin and/or Equivalents | Isoptin, Mylan-Verapamil, Verapamil | 
| Isoptin Ampule and/or Equivalents | Isoptin Ampoules for Injection | 
| Isoptin SR and/or Equivalents | Half Securon SR, Isoptin SR, Mylan-Verapamil SR, Verapamil SR, Pms-Verapamil SR, Securon SR, Verpamil SR | 
| Isopto Carbachol and/or Equivalents | Isopto Carbachol | 
| Isopto Carpine and/or Equivalents | Isopto Carpine, Pilocarpine Ophthalmic Solution | 
| Isopto Homatropine and/or Equivalents | Isopto Homatropine | 
| Isordil and/or Equivalents | Isosorbide Dinitrate, ISDN | 
| Isotrex Gel and/or Equivalents | Isotrex gel 30g | 
| Isotrexin Gel and/or Equivalents | Isotrexin gel 30g | 
| Izba Ophthalmic Solution and/or Equivalents | Izba Ophthalmic Solution |