Veterinary Formula® Flea & Tick Shampoo. Contains pyrethrum, which is derived from flowers kills fleas & ticks on contact. *Equivalent to (butylcarbityl) (6-propylpiperonyl) ether and related compounds. **MGK 264 insecticide synergist. Pyrocide® and MGK® registered trademarks of McLaughlin Gormely King Company. 954-525-1133. ©SynergyLabs 2014. All rights reserved.