Ultra Boss™ Pour-On Insecticide


Therapeutic Class

Pharmaceutical Name
5% permethrin and 5% piperonyl butoxide

Features and Benefits
… for Lactating and non Lactating Dairy Cattle, Beef Cattle, Calves, Sheep, lactating and Non-Lactating Dairy Goats and Horses not intended for human consumption.

Broad spectrum and fast acting insecticide against lice, horn flies, face flies, horse flies, stable flies, mosquitos, black flies and ticks.

  • Fast-acting 5% Permethrin formulation with 5% Piperonyl Butoxide optimizes control.

  • Effective horn fly control for 8 weeks. Also controls face flies.

  • Season-long lice control with one application (January through April).

  • No preslaughter withdrawal and no milk discard.

Pour-on insecticide for cattle and sheep.
Take Control of Flies and Lice.

Season-long lice control with one application (from January-April).

Apply To

Target Species

Lactating and Non-Lactating Dairy Cattle, Beef Cattle, and Calves

Lice, Horn flies, Face flies,
Aids in control of Horse flies, Stable flies, Mosquitoes, Black flies, and Ticks.


Sheep keds, Lice

SPECIAL NOTE: ULTRA BOSS® Pour-On Insecticide is not effective against cattle grubs.

For further information including dose rate and complete directions and warnings, please see the Product Label by clicking here.


Ultra Boss® Pour-On Insecticide is a registered trademark of Intervet Inc.

Product Label(s) and MSDS