You may need extra tests to check that your heart and liver are working properly. Tykerb 250mg Tablet may change the way your heart beats and pumps blood through your body. Your doctor will monitor you carefully to see whether Tykerb 250mg Tablet has affected your heart. Along with that, your doctor will get your liver function investigated. Based on the results of these tests, the doctor will decide whether dose adjustment or discontinuation of treatment is required.