List of Impurities by API index AB C D E F G H I J K L M N O P Q R S T U V W X Y Z Gabapentin Gamithromycin Ganciclovir Gatifloxacin Gefitinib Gemfibrozil Glibenclamide Gliclazide Glimepiride Glipizide Glucosamine Glutamic Acid Glutathione Glycodeoxycholic Acid Glycopyrronium Bromide Guaifenesin