Bravecto Chewable Tablets For Large Dog 20-40kg provide treatment and prevention of flea infestation for 3 months and treatment and control of paralysis tick for 4 months. Bravecto provides effective control of fleas within 8 hours of administration and effective control of pre-existing paralysis tick infestation within 24 hours. Comes in highly palatable tasty oral chew for easy administration. Contains 136.4g/kg Fluralaner.