Protect your dog year-round with Simparica and Simparica Trio, two trusted monthly chewable parasite preventatives designed to help safeguard dogs against common internal and external parasites.

This collection features Simparica flea and tick prevention and Simparica Trio all-in-one parasite protection, making it easy to choose the right level of coverage based on your dog's needs, size, and lifestyle.

Simparica Flea & Tick Prevention for Dogs

Simparica is a once-monthly chewable tablet that provides fast-acting, long-lasting protection against fleas and ticks. It helps kill fleas before they lay eggs and targets major tick species that can transmit disease. Simparica is ideal for dogs that require reliable flea and tick control without additional worming coverage.

Simparica Trio All-in-One Parasite Protection

Simparica Trio delivers comprehensive monthly protection in a single chew. In addition to flea and tick control, Simparica Trio helps prevent heartworm disease and treats and controls intestinal worms, including roundworms and hookworms. This all-in-one solution is a convenient choice for dog owners looking to simplify parasite prevention while maintaining broad coverage. For a deeper dive on Simparica Trio specifically, see our dedicated Simparica Trio collection.

Why Choose Simparica or Simparica Trio?

• Monthly oral chewable parasite prevention

• Protection tailored to your dog's needs

• Available in multiple weight-based sizes

• Suitable for puppies and adult dogs (age and weight dependent)

• Trusted by veterinarians worldwide

Browse our full range of Simparica and Simparica Trio sizes above to find the correct product and size for your pet. Choosing the right weight range ensures effective protection and optimal results. If you're unsure which option is best, our size guide can help you select the correct chew with confidence.

Helpful Guides

For more on flea and tick treatment options for dogs, see our comprehensive flea and tick treatment guide and flea pills for dogs without the RX guide.