Heartworm associated respiratory disease (HARD)
Drs. Foster & Smith Educational Staff

Mosquitoes spread heartworm larvae through their bites. Since mosquitoes can easily get indoors, even cats who rarely go outside can get heartworms. Without preventive medication to stop them, heartworm larvae grow into adults 5" long and wreak havoc on your cat's respiratory system.

In cats, heartworms create a condition called Heartworm Associated Respiratory Disease (HARD). While many cats with HARD show no signs of disease, HARD can cause coughing, listlessness, appetite loss, vomiting, weight loss, rapid heart rate, blindness, fainting, convulsions, collapse, and even sudden death.

Preventing HARD is easy

Protect your cat with a prescription heartworm preventive. We'll help you every step of the way in filling your cat's prescription. Plus, we'll give you the best price available and guarantee heartworm medication effectiveness!

    Let us know how we'll receive the prescription, if it's not already on file with us. We'll gladly contact your veterinarian for you for prescription authorization. Or, if you prefer, you can ask your veterinarian to fax or call in the prescription (toll-free), or you can send the original prescription by mail.

    After we receive the prescription, we'll ship your order. Look for a confirmation email indicating prescription processing and shipment.

If your cat spends time outdoors, limit her exposure to mosquitoes and use a mosquito repellent such as Bio SpotĀ® ACTIVE CARE SPOT ONĀ® for Cats, in addition to her heartworm preventive.