100 DAYS contains abamectin and albendazole, a member of the
macrocyclic latone and benzimidazole: family of chemicals respectively.
Correct drenching technique should be used. Resistance may develop to
any chemical. Its advisable that a resistance test be conducted regularly
when using any parasite treatment. Ask your local veterinary practitioner or
animal adviser for recommended parasite management practices for your
area to reduce development of resistance.