
Is this what you were looking for? Believe Ivermectin/Ivomec are also prescribed for skin disorders, but haven't come up against it myself yet.
M.
In certain rare instances Collies have been known to have a sensitivity to certain pharmaceuticals, such as Ivermectin (for Heart Worm control), Imodium A-D, Flagyl and certain anesthetics. Collies especially have been known to have a sensitivity to Ivermectin and in fact the drug insert cautions about usage in Collies and related breeds. If you live in an area prone to Heartworm, please check with your Veterinarian or breeder regarding the advisability of using this drug on any Collie. Deaths have been known to occur and clinical signs of toxicosis have occurred at lower doses of Ivermectin than in other breeds. There have been numerous reports and studies regarding the safety of using ivermectin-based heartworm prevention in collies and other herding breeds of dogs. Please do not use or use with extreme caution any heartworm preventative containing Ivermectin as the active ingredient.