Fiprex 412.5 (Spot On). Features: The active ingredient of the product (Fipronil) penetrates the epidermis, from where it is systematically released onto the surface, forming a protective layer. The product kills fleas immediately; ticks die within 24–48 hours. Application: Apply the contents of the tube directly onto the skin along the spine, starting between the shoulder blades and ending at the base of the tail (for cats and dogs weighing up to 20 kg, this is sufficient). Apply the contents of the appropriate tube to the skin between the shoulder blades. Do not bathe the dog 2 days before and 2 days after applying the product. Manufacturer: Fiprex. Purpose: Anti-tick and flea treatment. Duration of action: 4 weeks / 8 weeks. Dosage: 1 tube with 1 ml (L – contains 75 mg Fipronil) per dog up to 10 kg. Capacity: 5.5 ml.