Heartworms

Ferrets are susceptible to canine heartworms, and should be given a monthly, NON-CHEWABLE, Ivermectin product (Heartgard). Chewable products are not recommended, as the manufacturer cannot assure that the Ivermectin is uniformly distributed. When the chewables are broken in half for animals five pounds and under, they could potentially receive the entire dosage, OR may actually receive none of the product at all.

Ferret heartworm treatment is not generally attempted due to high mortality resulting from dead worm fragments blocking vascular pathways. Supportive care with diuretics, cardiac drugs, or anti-inflammatory may provide some relief.