To buy , you must first obtain a prescription from your licensed veterinarian . This medication is a flavored, chewable tablet designed for monthly use to protect against fleas, heartworms, and intestinal parasites. Where to Buy ComboGuard
It starts killing fleas within 30 minutes and is 100% effective against heartworm when used as directed. Important Safety Note COMBOGUARD® - Vethical
It contains Spinosad (to kill fleas) and Milbemycin Oxime (to prevent heartworm and control intestinal worms). Usage: Administer one tablet monthly with a meal .
You can order through your vet's preferred online pharmacy partner, such as Vetsource or Covetrus, which will verify the prescription with your veterinarian before shipping.
Because it is a prescription-only drug, you have a few specific options for purchasing it:
It is for dogs and puppies at least 8 weeks old and weighing at least 5 lbs .
ComboGuard is frequently sold directly through VCA Animal Hospitals and other participating clinics.
While less common for this specific brand (which is often clinic-exclusive), some owners use their prescription to buy similar multi-parasite preventatives from retailers like Chewy Pharmacy or 1-800-PetMeds . Key Product Details
