Home Animal Health Products farma farma Ruler Ruler Oral Drench Active Ingredients: Moxidectin with Selenium. Selenised oral drench for sheep. Benefits Moxidectin provides persistent protection against Barber's Pole for up to 35 days Dose rate: 1mL/5kg Withholding period: Meat - 14 days, Milk - 35 days Pack size: 15L Origin: New Zealand ACVM ACVM Act 1997 No. A012132. Enquire about Ruler SDS Label