A heartworm preventative tablet given daily. Sizes available - 50mg for dogs up to 8 kg / 18 lbs; 200mg for dogs 8-32kg/18-70lb; 400mg for large dogs 32-64kgs/70-140lbs.
Cautions:
Do not give to dogs that are heartworm positive. Do not give this medication to dogs that have not been on continuous heartworm prevention, without a negative test result for heartworm microfilaria. Failure to do so may result in anaphylactic shock and death. This medication should not be used in animals allergic to it.