Ultrum Line-up Spot On is an excellent and potent flea and tick treatment for dogs. This spot on protects dogs from the treacherous flea and tick infections. It gets rid of parasites quickly and manages to eliminate adult fleas on contact. Ultrum Line-up is effective for 4 weeks for fleas and 3 weeks in the case of ticks. Moreover, the solution is easy to use and discourages the growth of flea eggs and larvae for up to 5 months from the administration. Ultrum Line-up Spot On is suitable for puppies over 6 weeks of age.