To ensure administration of a correct dose, bodyweight should be determined as accurately as possible; accuracy of the dosing device should be checked.
In cattle: A single treatment of 1 ml (10 mg doramectin) per 50 kg bodyweight, equivalent to 200 μg/kg bodyweight, administered in the region of the neck by subcutaneous injection.
In sheep: A single treatment of 1 ml (10 mg doramectin) per 33 kg bodyweight, equivalent to 300 mcg/kg bodyweight, administered by intramuscular injection for the treatment and control of Psoroptes ovis (sheep scab mite) and adult Nematodirus battus. In addition, adequate bio-security measures should be implemented to prevent re-infestation. Ensure that all sheep which have been in contact with infested sheep are treated. After treatment, contact between treated infected and untreated uninfected flocks must be avoided for at least 14 days. A single treatment of 1 ml (10 mg doramectin) per 50 kg bodyweight, equivalent to 200 μg/kg bodyweight, administered by intramuscular injection for the control of certain other gastro-intestinal nematodes and nasal bots.