Absorption of chlortetracycline from the alimentary tract is reduced by calcium, iron, magnesium and zinc salts.

Treated birds must not be slaughtered for human consumption within 3 days of the last treatment.

Treated pigs must not be slaughtered for human consumption within 6 days of the last treatment.

Do not administer to laying birds producing eggs for human consumption.

Do not administer to pregnant sows.

Avoid inhalation of dust by wearing a protective mask. Wear either a disposable half-mask respirator conforming to European Standard EN 149 or a non-disposable respirator to European Standard EN 140 with a filter to EN 143. In case of accidental spillage on to the skin or eyes, wash the affected area with clean running water immediately. Seek medical attention if irritation occurs/persists. Wash hands thoroughly after using this product.