Maple Leaf Medications has provided information from third parties intended to increase awareness and does not contain all the information about Heartgard Plus Chewable Brown (for dogs over 50lbs) (Ivermectin & Pyrantel Pamoate). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Heartgard Plus Chewable Brown (for dogs over 50lbs) (Ivermectin & Pyrantel Pamoate).