Protect your dogs and cats from those pesky fleas, ticks and lice with Adams Plus Flea & Tick Shampoo. It kills the adult pests and then prevents flea eggs from hatching for up to 4 weeks. The effective, multi-purpose shampoo also cleans and deodorizes their coat to give it a brighter luster and shine. For dogs and cats over 12 weeks, repeat use every 7-14 days.