gabapentin gadobenate dimeglumine gadobutrol gadopentetic acid dimeglumine salt gadoterate meglumine gadoteridol gadoxetic acid, disodium galantamine hydrobromide galcanezumab ganciclovir ganciclovir sodium ganirelix ganirelix acetate gefitinib gemcitabine hydrochloride gemfibrozil gemtuzumab ozogamicin gentamicin sulfate gestodene gilteritinib fumarate givosiran sodium glacial acetic acid glasdegib maleate glatiramer acetate glecaprevir glibenclamide gliclazide glimepiride glipizide glofitamab glucagon glucose glucose monohydrate glucose, anhydrous glutamic acid glycerol glycerol phenylbutyrate glyceryl trinitrate glycine glycopyrronium bromide golimumab gonadorelin hydrochloride goserelin acetate gozetotide gramicidin granisetron granisetron hydrochloride grass pollen allergen extract grazoprevir griseofulvin guaifenesin guanfacine hydrochloride guselkumab