Before taking Ivermectin , tell your doctor or pharmacist if you are allergic to it; or to other drugs such as lindane or permethrin; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease.Ivermectin is not recommended for use during pregnancy due to a lack of data on its safety. It is unknown if this drug passes into breast milk. Consult your doctor before breast-feeding.Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions.