Ivomec Sheep Wormer This product is intended for animals only. A liquid dewormer containing Ivermectin 0.08%. It's convenient and has a wide therapeutic index which makes this drench an exceptionally valuable product for parasite control in sheep. IVOMEC Sheep Drench, which is formulated specifically for sheep, provides a broader spectrum of efficacy than any other sheep parasite control products. kills 122 adult and immature stages of gastrointestinal roundworms kills all larval stages of nasal bots kills adults and immature lungworms Dosage: 3 mL containing 2400 mcg ivermectin treats 26 lb body weight. IVOMEC Drench for Sheep may be used in any standard drenching equipment or in any equipment which provides a consistent dose volume. 11 day slaughter withdrawal. Administered orally to sheep only. Storage: Store at 68° to 77°F (20°C to 25°C). Excursions between 59°F to 86°F (15°C to 30°CO are permitted.