294110 Penicillins and Their Derivatives With a Penicillanic Acid Structure
294120 Streptomycins and Their Derivatives, Salts Thereof
294130 Tetracyclines and Their Derivatives, Salts Thereof
294140 Chloramphenicol and Its Derivatives, Salts Thereof
294150 Erythromycin and Its Derivatives, Salts Thereof
294190 Other Antibiotics