Drug Interaction Report

Lenvatinib can cause a rare but serious condition known as osteonecrosis of the jaw (ONJ), and combining it with lenalidomide may increase the risk. ONJ is the exposure of jaw bone through the gums associated with death of bone tissue and usually occurs after invasive dental procedures such as tooth extraction. The risk is generally related to the dose of these medications and the duration of treatment. Good oral hygiene accompanied by regular dental care is the best way to lower the risk of ONJ. Talk to your doctor and dentist if you have any questions or concerns. Your healthcare provider may already be aware of the risks but has determined that this is the best course of treatment for you. Your doctor and/or dentist may monitor your dental health more closely for any potential complications. You should seek medical attention if you experience potential signs and symptoms of ONJ such as: pain in the mouth, teeth, or jaw; swelling or sores inside the mouth; numbness or a feeling of heaviness in the jaw; loosening of a tooth; or exposure of bone in the jaw. Also, before you get any type of dental surgery, be sure to let your care provider know you are taking these medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.