[quote user="ColleenC"]Actually, hearworm meds don't stay in the system. [/quote] ColleenC is correct. Interceptor and Heartgard are out of the dog's system in 24-48 hours. The "preventatives" prevent adult heartworms by killing immature heartworms. Heartworm "treatments"...
Posted to
General Chat
(Forum)
by
janet_rose
on
08-31-2007
Filed under: heartworm preventative, heartworm treatment, heartworms, L3, L4, L5, L6, microfilaria