Swat Pour-On for Cattle will give effective control of pyrethroid susceptible Buffalo Fly and Cattle Lice when used as directed. However, the level and duration of control may be reduced due to high fly pressure. Therefore, we recommend to treat all animals in the group. The length of residual protection against Buffalo Flies will vary depending on the level of insecticide resistance within a particular area.
Above all, Swat Pour-On is effective against biting lice and two species of sucking lice.

MEAT: DO NOT USE less than 7 days before slaughter for human consumption.
MILK: DO NOT USE on lactating or pregnant cows where milk products may be used for human consumption.
DO NOT TREAT animals with this product more than 3 times in any given 12 month period. Allow at least 21 days between treatments. More frequent use of this product is likely to result in residues above the MRL.