Heartguard Plus Side Effects. The most common heartgard side effects are; Rarely, diarrhea or vomiting within 24 hours of administration were reported (1.1%).

We just started heartgard a month ago and through out the whole month she has. Which they were able to tolerate with few side effects. Some reported side effects of heartgard plus for cats include disorientation, blindness and dilated pupils, loss of appetite, agitation and tremors.

How Often To Give Interceptor Plus. Interceptor contains 2.3 mg for dogs up to 10 pounds, and 5.75 mg for dogs 11 to 25 pounds. This is the only way to guarantee maximum effectiveness of interceptor or interceptor plus.

Interceptor plus should be administered orally, once every month, at the minimum dosage of 0.23 mg/lb (0.5 mg/kg) milbemycin oxime, and 2.28 mg/lb (5 mg/kg) praziquantel. Interceptor plus protects against 5 types of dangerous worms in dogs. We are battling bloody stool currently and the vet administered metronidazole for loose stool.