So, Tucatinib is this special medicine that’s used to treat a kind of breast cancer that has spread to the brain and is positive for HER2. It works by stopping something called the HER2 pathway. This pathway is really important in how some breast cancers grow and spread.
You can get it in two strengths: 50 mg and 150 mg tablets. Adults usually take it at 300 mg, twice a day, and it’s best with food to help it work better. The tablets are those with a coating and you’ll find them in bottles with 60 pills each.