 |  |  |  | 12 Month - Tri-Heart Plus Green for MEDIUM DOGS (26-50 lbs) Tri Heart Plus for dogs comes in chewable tablets. Each chewable tablet contains 136 mcg ivermectin and 114 mg pyrantel as pamoate salt. Administer once a month to prevent heartworm disease and to treat and control ascarid and hookworm infections in dogs.
Regular price: $39.99 Sale price: $31.99
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