Privermectin® (ivermectin) Drench for Sheep is a liquid, administered orally for sheep, consisting of an 0.08% solution of ivermectin. Discovered and developed by scientists from Merck Sharp and Dohme Research Laboratories, ivermectin is a unique chemical entity. As such, the chances of cross-resistance in parasites that have developed resistance to other wormers is highly unlikely. Additionally, its convenience, broad spectrum efficacy, and wide therapeutic index make Privermectin® (ivermectin) Drench for Sheep an exceptionally valuable product for parasite control in sheep. Consult your veterinarian for assistance in diagnosis, treatment, and control of parasitism.
Dosing Privermectin® (ivermectin) Drench for Sheep is formulated only for administration to sheep; do not use in other species. The recommended dose level is 3 mL of Privermectin® (ivermectin) Drench for Sheep, containing 2400 mcg ivermectin, which is sufficient to treat 26 pounds of body weight.
Advantages Unique Chemistry-unrelated To Existing Formulations.
Because Privermectin® (ivermectin) Drench for Sheep is chemically different, cross-resistance is unlikely in parasite strains which may have developed resistance to other wormers.
Broad Spectrum Effectiveness. One low-volume dose effectively treats and controls many gastrointestinal roundworms (including Haemonchus contortus), lungworms, and nasal bots.
Easy Administration. Privermectin® (ivermectin) Drench for Sheep can be administered with any standard drenching equipment or any equipment that provides a consistent dose volume.
Privermectin® (ivermectin) Drench for Sheep is an 0.08% w/v pale amber colored solution of ivermectin.
Ivermectin is derived from the avermectins, a family of highly active, broad spectrum, antiparasitic agents which are produced from fermentation products of Streptomyces avermitilis.
Privermectin® (ivermectin) Drench for Sheep is indicated for the effective treatment of gastrointestinal roundworms (including Haemonchus contortus), lungworms and nasal bots in sheep.
When used as recommended, it provides effective control of the parasites shown in the table
Privermectin® Drench For Sheep Kills These Parasites
Larvae (4th Stage)
(all larval stages)
Privermectin® (ivermectin) Drench for Sheep should only be administered orally at the recommended dose level of 200 mcg ivermectin per kilogram of body weight. Three mL of Privermectin® (ivermectin) Drench for Sheep contains sufficient ivermectin to treat 26 pounds of body weight.
Sheep Body Weight Dosed
To avoid underdosing, it is important to get the dose according to the weight of the heaviest sheep in a group (ewes, lambs or rams), not the average weight. Several of the largest sheep should be weighed, judgment by the eyecan be deceiving.
Any standard drenching equipment, or any equipment which provides a consistent dose volume, can be used. Dose rates and equipment should be checked before drenching commences. Be sure the head is properly positioned for each sheep to receive the full dose.
Privermectin® (ivermectin) Drench for Sheep is readily accepted by sheep, but inconsequential coughing may be observed in some animals during and for several minutes after drenching. If slobbering occurs, the dose may be lost, and that sheep should be redosed.Learn More
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