Heartgard (ivermectin) is a parasiticidal medication that causes neurologic damage to the parasite resulting in its paralysis and death. It is safely used in dogs and cats to prevent heartworm disease. It is given once a month and dosage is according to body weight. It is generally considered quite safe in dogs and cats 6 weeks of age and older. Your veterinarian will guide you in integrating this product as part of a comprehensive parasite control program.
Please keep in mind the information provided for this product is for reference only. Always consult your veterinarian to make sure this product is appropriate for your pet. Before administering be sure to thoroughly read the product label and package insert for a more complete description regarding the proper use of this product.