Prac-Tic Spot-On Solution for Dogs Presentation PRAC-TIC 56.25 mg Spot-on solution for very small dogs PRAC-TIC 137.5 mg Spot-on solution for small dogs PRAC-TIC 275 mg Spot-on solution for medium dogs PRAC-TIC 625 mg Spot-on solution for large dogs Each ml contains 125 mg pyriprole as a colourless to yellow, clear solution. Each pipette of PRAC-TIC delivers the following: Unit dose Pyriprole PRAC-TIC for very small dogs 0.45 ml 56.25 mg PRAC-TIC for small dogs 1.1 ml 137.5 mg PRAC-TIC for medium dogs 2.2 ml 275 mg PRAC-TIC for large dogs 5.0 ml 625 mg