Viper™ Pour-On

Viper™ contains thiacloprid which has a unique mode of action that provides rapid knockdown control of lice.² Viper continues to kill adult lice and emerging nymphs for 4 weeks after treatment when applied within 24 hours of shearing. Viper can be applied up to 7 days after shearing or to unshorn lambs from two weeks to two months of age. Elanco offer a 6 month off shears lice free guarantee.

Key Product Benefits:

• Highly potent, second generation neonicotinoid chemistry
• 4 weeks’ protection when applied within 24 hours of shearing
• Flexible off-shears application – up to 7 days
• 6 months off shears lice free guarantee

Withholding Periods

MEAT: DO NOT USE less than 42 days before slaughter for human consumption.

MILK: DO NOT USE on ewes which are producing or may in the future produce milk that may be used or processed for human consumption.

WOOL HARVESTING INTERVAL: DO NOT USE less than 6 months before shearing or fibre collection.

Export Slaughter Interval (ESI): DO NOT USE less than 56 days before slaughter for export.