admin

Parasite prevention

Routine medications protecting pets against fleas, ticks, heartworm, and intestinal worms. Year-round, vet-recommended schedule.

Routine parasite prevention is one of the highest-leverage investments in pet care. The diseases prevented — heartworm, paralysis tick (Australia), Lyme disease, tick paralysis, flea-allergic dermatitis, intestinal worm infestations, hookworm anaemia in puppies, tapeworm transmitted by fleas — are common, sometimes fatal, and almost entirely preventable.

Common product categories: - **Monthly chewables** combining flea, tick, heartworm, intestinal worm (e.g., NexGard Spectra, Simparica Trio, Bravecto Plus). Most convenient. - **Topical (spot-on) products** covering different combinations. - **Tablets** (single-action or combination). - **Injectable heartworm prevention** (annual, dogs). - **Collars** (some long-acting tick/flea collars; check ingredients carefully for cat-safety in dog products).

Year-round prevention is standard in endemic areas. Lapsing for even a single month restarts the heartworm clock; lapsing during summer can mean tick paralysis in Australian east-coast regions.

Cats need cat-specific products. Many dog flea products containing permethrin or pyrethrin are lethal in cats.

Related terms

  • Heartworm — A parasitic worm that lives in the heart and major blood vessels of dogs (and rarely cats), transmitted by mosquitos. Preventable. Treatment is risky and expensive.
  • Fleas — Tiny blood-feeding insects that cause itching and skin disease. The most common parasite of pets. Most pets are not "scratching" — they are flea-allergic.
  • Paralysis tick (Ixodes holocyclus) — An Australian tick whose toxin causes progressive paralysis in pets. Without rapid vet treatment, often fatal. Preventable.