Gramicidin A and its Impurities
Gramicidin A, also called gramicidin D, is a mix of ionophoric antibiotics, gramicidin A, B and C. it is used in medicinal lozenges for sore throat and in topical medicines to treat infected wounds. Reference standards of Gramicidin A API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.