If you are taking statins, do not exceed 800 IU of vitamin E because it can dramatically reduce the benefits of some cholesterol drugs.
Adverse effects may also occur when taking vitamin E and chemotherapy drugs, or mineral oil.
Vitamin E absorption may be altered when taking the pharmaceuticals Cholestyramine, Colestipol and Orlistat.
Levels of vitamin E may be affected by seizure medications, zinc and fish oils.
High doses of vitamin E may increase the body’s vitamin K requirement, and increased intake of omega-6 fatty acids may increase vitamin E requirements.