What other treatments are used to treat sea lice infected fish?
Ivermectin is a licensed prescription product used to treat sea lice infestation in farmed fish. It is widely used to manage parasites on domestic and farm animals, and can also be used on humans. This product is available to farmers by veterinary prescription only and it’s use is strictly regulated and controlled. All veterinarian-prescribed drugs have a withdrawal time – a period of time that must pass after treatment ceases before the fish are considered drug free. Fish cannot be harvested for food until after the withdrawal period. The Canadian Food Inspection Agency tests fish destined for market, for drug residues to ensure no trace of any medication is present.