Uses

• Ivermectin can control a number of parasites. When it is administered by a shot or orally, it can be used to kill heartworms, gastrointestinal parasites or other parasites in the bloodstream. When it is applied topically, it is used to fight skin parasites or other external parasites, like ear mites. It is also used as a heartworm preventative in dogs and cats. It works by causing neurological damage to the parasite, which results in death.
  
  

Brand Names

• Ivermectin is available in both brand-name and generic forms. Three of the brands are produced by Merial: Ivomec, Eqvalan and Heartgard. Other brands include Zimectrin, which is produced by Farnam and Iverhart, which is produced by Virbac.
  
  

Precautions

• Unless under the direct care of a veterinarian, Ivermectin should not be used in animals that are less than six weeks old. If the animal is known to be allergic to the drug, it should not be used. Finally, Ivermectin is only for use in animals and should never be used on humans.
  
  

Application

• Topical Ivermectin is normally applied to cats by dispensing the correct dose along a strip of skin between the shoulder blades. For ear mites, the dose would be dispensed into the affected ear canal. Do not apply topical Ivermectin on your cat without the direction of a veterinarian. The amount and the length of use of Ivermectin varies depending on what is being treated and on the type of cat you have. It is important to complete the entire prescription as directed, even if your cat seems to be feeling better. Otherwise, the infection might not clear up entirely, and the animal could become resistant to the medication. Still, the duration of the dose might be shortened if there are complications or negative reactions.
  
  

Side Effects

• Ivermectin is generally considered safe when it is prescribed by a veterinarian. However, as with any drug, there is the chance of negative reactions or side effects in some animals. In particular, an overdose can cause severe side effects like tremors, blindness, weakness or stumbling. These symptoms usually occur within 12 hours of the overdose occurrence. If you notice any unusual behavior or any of these symptoms, contact your veterinarian for advice.