Just been to town with my friend, she like me has a number of dogs & cats too & was going for flea treatments, Frontline spot on packs of 6 pippettes were £36.50 for small-med dogs (2-10kg) & £28.50 for cats 6 pippettes. before deciding we checked Millbry Hill pet store across the road they now sell vet strength frontline & another american brand Virbac Effipro (fipronil) Having read the back of the packets & the ingreidients etc, she chose the new one. Virbac For small to medium dogs it worked out at £15 for 4 pippettes covering ticks for 4 weeks & fleas for 8 weeks. For cats it was £12.49 for 4 pippettes covering ticks for 2 weeks & fleas for 5 weeks. Helped her use them when we got back to hers, there was no smell off them (some smell vile for 48 hrs) I thought these were good value she has two left over so next time only has to buy 1 box of dog & 1 cat, she treated 6 dogs & all 4 cats for less than £43 with vet strength spot ons. thats quite a price difference!!!