Vetracin Classic is a water-soluble powder that combines chlortetracycline hydrochloride, an antibiotic, with vitamin A and vitamin B12. It is used for bacterial diseases of livestock and poultry caused by organisms susceptible to chlortetracycline, while the added vitamins support the animal during periods of stress, illness and convalescence. Available in 1 kg, 150 g and 31.2 g packs, and in a box of 12 x 31.2 g sachets. Use only as directed on the label or by a veterinarian, observe the stated withdrawal periods, and store in a cool, dry place away from direct sunlight.