Mastermectin injection is a broad spectrum anthelmintic that should be administered via subcutaneous injection observing aseptic technique. It is effective in the control and treatment of gastrointestinal nematodes, lungworms, eye worms, warble flies, mites and lice in beef and non-lactating dairy cattle Dosage: The dosage rate for cattle is 1.0ml per 50 kg bodyweight, sheep receive 0.5ml per 25 kg and pigs get 1.5ml per 50kg. To ensure administration of a correct dose, bodyweight should be determined as accurately as possible. The accuracy of the dosing device should be checked. If animals are to be treated collectively rather than individually they should be grouped according to their bodyweight and dosed accordingly, in order to avoid under or overdosing.

Inject subcutaneously in front of, or behind the shoulder using aseptic technique. A sterile 1.4 x 15 mm (17G x ½ inch) needle is recommended. A dosing programme should be established with your veterinary surgeon. Veterinary advice should be sought on appropriate dosing programmes and stock management to achieve adequate parasite control, and to reduce the likelihood of anthelmintic resistance developing. Veterinary advice should also be sought if the product does not achieve the desired clinical effect, as other diseases, nutritional disturbances or anthelmintic resistance might be involved.

Frequent and repeated use may lead to the development of resistance. It is important that the correct dose is given in order to minimize the risk of resistance. Ivermectins may not be well tolerated in non-target species and may be fatal. Withdrawal; Cattle: Meat and offal: 49 days. Do not use in lactating cows producing milk for human consumption. Do not use in non-lactating dairy cows, including pregnant dairy heifers, within 60 days of calving.