# Simparica Chewable Tablets for Dogs (Pack of 3) > One tablet, once a month Simparica Chewable Tablets for Dogs: a monthly flavoured flea and tick treatment. It contains sarolaner, starts killing fleas within 3 hours and ticks within 8 hours, and remains effective for up to 35 days. Suitable for dogs from 8 weeks of age and weighing 1.3 kg+. Fast... *Source: https://ashcroft4pets.co.uk/dog-medications/simparica-chewable-tablets-dogs/* **This product cannot be dispatched without a valid written prescription from a registered veterinary surgeon.** Simparica Chewable Tablets for Dogs is a fast-acting Prescription Only Medication (POM-V) that treats and prevents flea infestations, ticks, sarcoptic mange, and ear mites. Containing the active ingredient sarolaner, it travels through your dog’s bloodstream to eliminate ectoparasites before they can lay eggs, breaking the contamination cycle in your home. Administered once a month, this highly palatable chewable tablet provides comprehensive protection for up to 35 days. It is clinically proven to tackle common UK parasites, including Ctenocephalides felis (fleas) and Sarcoptes scabiei (mange). Simparica Chewable starts killing fleas within 3 hours and ticks within 8 hours of dosing. One tablet protects your dog for up to 35 days, fitting neatly into a monthly routine. It can be given with or without food, and most dogs take it willingly by hand. **Weight-Based Strength Guide:** Simparica Chewable Tablets are available in six strengths, each matched to your dog’s body weight. Your vet will confirm which strength to use on the prescription. The guide below is for reference only — always follow your vet’s prescription. - 1.3–2.5 kg (tiny dog, e.g. Chihuahua): 5mg tablet - 2.5–5 kg (small dog): 10mg tablet - 5–10 kg (small-medium dog): 20mg tablet - 10–20 kg (medium dog, Cocker Spaniel): 40mg tablet - 20–40 kg (large dog, Labrador): 80mg tablet - 40–60 kg (extra-large dog, Great Dane): 120mg tablet Only for use in dogs 8 weeks of age and older. Your vet will confirm the exact strength on your prescription. **Note**: Dogs over 60 kg require an appropriate combination of tablets as directed by a vet. Legal Category: POM-V [View the Summary of Product Characteristics (SPC) information for this product](https://www.noahcompendium.co.uk/?id=-485499)