Health Canada's Drug Product Database (DPD) lists veterinary drug products approved for dogs. Two widely-marketed canine internal (oral / injectable anthelmintic) antiparasitic products confirmed via the 2026-07-21 DPD online query (drugClass=Veterinary, vetSpecies=Dogs): (1) Drontal Plus — 2 Marketed DINs starting at DIN 02169517 (3 active ingredients incl. PRAZIQUANTEL 22.7 MG; Schedule PRESCRIPTION; Veterinary class; company ELANCO CANADA LIMITED); the larger DIN 02169525 is also Marketed. (2) Heartgard-30 Plus — 3 Marketed DINs 01909975 / 01909983 / 01909991 (2 active ingredients incl. PYRANTEL (PYRANTEL PAMOATE) 57 MG; Schedule PRESCRIPTION; company BOEHRINGER INGELHEIM ANIMAL HEALTH CANADA INC.). Across the canine veterinary DPD subset, the antiparasitic active milbemycin oxime has 31 product rows incl. Credelio Plus (5 Marketed DINs 02525674-02525712, milbemycin oxime combination). Praziquantel appears in 18 pet rows incl. Droncit (DIN 02240073 Marketed Dogs+Cats; Droncit Injectable DIN 02169509 Marketed Dogs+Cats; older Droncit Canine Cestocide Tab 34MG DIN 00469289 Cancelled Post Market). The classic ivermectin-only Heartgard-30 chewables (DINs 00812315 / 00812323 / 00870064) are present but Cancelled Post Market as of 2026-07-21; Heartgard-30 Plus (pyrantel-based combination) is the Marketed successor line for monthly heartworm prevention in dogs. Other canine internal antiparasitic Marketed lines include the fenbendazole Panacur Granule Singles DIN 02297043 and Panacur Granules 22.2% DIN 00489883.
Source: https://health-products.canada.ca/dpd-bdpp/search-recherche (drugClass=Veterinary, vetSpecies=Dogs, status=all), raw HTML at pdf-raw/ca-2026/dpd/_raw/dpd_dogs_vet_search_20260721.html.