Oxytetracycline, like other tetracyclines, is used to treat many infections, both common and rare (see Tetracycline antibiotics group). Its better absorption profile makes it preferable to tetracycline for moderately severe acne at a dosage of 250–500 mg four times a day for usually six to eight weeks at a time, but alternatives should be sought if no improvement occurs by three months. Avoid milk, iron, zinc or indigestion remedies while taking oxytetracycline. Take before food or on an empty stomach. Always follow your doctors’ instructions and instruction leaflet.