Iverhart Max Side Effects

Iverhart Max is a prescription medication for your dog used to prevent heartworms. Despite its effectiveness, Iverhart Max poses the risk for side effects.

  1. Significance

    • Side effects of Iverhart Max are rare, occurring in 1.1 percent of dogs treated with the medication, according to drugs.com

    Types

    • Potential side effects of Iverhart Max include lethargy, limpness, drooling or licking the mouth, trembling, diarrhea, lack of appetite and belching.

    Time Frame

    • Side effects of Iverhart Max typically develop within 20 minutes to 72 hours following administration.

    Risks

    • While uncommon, some dogs develop convulsions, lack of coordination or excessive dilation of the pupils. The drug may also raise cholesterol levels when taken at high doses.

    Considerations

    • Collies are more sensitive to Iverhart Max than other dogs, increasing the risk of side effects. If your dog is sick, underweight or pregnant, your veterinarian is not likely to prescribe Iverhart Max due to its potential side effects.