AMBROXOL HYDROCHLORIDE IMPURITY VERAPAMIL HYDROCHLORIDE IMPURITY LANSOPRAZOLE IMPURITY HYDROCHLORIC ACID ALFUZOSIN IMPURITY SODIUM VALPROATE IMPURITY AMIODARONE HYDROCHLORIDE IMPURITY ALBENDAZOLE IMPURITY ACEBUTOLOL HYDROCHLORIDE IMPURITY BISOPROLOL IMPURITY MOXIFLOXACIN HYDROCHLORIDE IMPURITY 5-METHOXY-1H-BENZIMIDAZOLE-2-THIOL 1-ETHYLPIPERAZINE-2 3-DIONE MONTELUKAST SODIUM SALT 2-BUTYL-5-CHLOROIMIDAZOLE-4-METHANOL