List of drugs: Ia–Il

iba-ibr

 * ibacitabine (INN)
 * ibafloxacin (INN)
 * ibalizumab (INN)
 * ibandronic acid (INN)
 * ibazocine (INN)
 * ibipinabant (USAN, INN)
 * iboctadekin (USAN)
 * ibodutant (INN)
 * ibopamine (INN)
 * Ibrin (GE Healthcare)
 * ibrolipim (USAN)
 * ibrotamide (INN)

ibu

 * Ibu-Tab
 * Ibu
 * ibudilast (INN)
 * ibufenac (INN)
 * Ibuprin
 * Ibuprom (USP Zdrowie)
 * ibuprofen (INN)
 * ibuproxam (INN)
 * ibutamoren (INN)
 * ibuterol (INN)
 * ibutilide (INN)
 * ibuverine (INN)

ic-id

 * icatibant (INN)
 * iclaprim (INN)
 * iclazepam (INN)
 * Iclusig
 * icodextin (USAN)
 * icoduline (INN)
 * icometasone enbutate (INN)
 * icomucret (USAN)
 * icopezil (INN)
 * icosapent (INN)
 * icospiramide (INN)
 * icrocaptide (INN)
 * Idamycin (Adria Laboratories)
 * idarubicin (INN)
 * idaverine (INN)
 * idazoxan (INN)
 * idebenone (INN)
 * idecabtagene vicleucel (INN)
 * idenast (INN)
 * Idkit:HP (Exalenz Bioscience)
 * iDose TR
 * idoxifene (INN)
 * idoxuridine (INN)
 * idrabiotaparinux (INN)
 * idralfidine (INN)
 * idramantone (INN)
 * idraparinux (USAN)
 * idrapril (INN)
 * idrocilamide (INN)
 * idronoxil (USAN)
 * idropranolol (INN)
 * idursulfase (USAN)

if-il

 * ifenprodil (INN)
 * ifetroban (INN)
 * IFEX (Bristol-Myers Squibb)
 * ifosfamide (INN)
 * ifoxetine (INN)
 * iganidipine (INN)
 * igmesine (INN)
 * igovomab (INN)
 * Ilaris (Novartis)
 * ilatreotide (INN)
 * ilepatril (INN)
 * ilepcimide (INN)
 * Iletin (Eli Lilly and Company)
 * iliparcil (INN)
 * ilmofosine (INN)
 * ilodecakin (INN)
 * ilomastat (INN)
 * ilonidap (INN)
 * iloperidone (INN)
 * iloprost (INN)
 * Ilosone (Eli Lilly and Company/GlaxoSmithKline)