Bosentan tablets do not necessarily need to be taken for life. Bosentan tablets are usually used for the treatment of pulmonary hypertension in patients with WHO stage III and IV primary pulmonary hypertension, or pulmonary hypertension caused by scleroderma, etc.; allergic to bosentan and any components contained in this drug, pregnant women or women of childbearing age who are not using adequate contraception (at least two reliable contraceptives), moderate or severe hepatic impairment and other groups of people are prohibited. Bosentan tablets do not necessarily need to take for life, for severe pulmonary hypertension patients may need to take long-term, but for mild to moderate pulmonary hypertension patients to wait until the condition is stabilized, the drug can be gradually reduced or discontinued treatment, or after taking the drug appeared to be serious liver function from time to time should not be lifelong use. Adverse reactions such as headache, fluid retention, abnormal liver function test results, anemia or hemoglobin reduction may occur after use of the drug. Patients who need to take bosentan tablets for treatment should use the drug under the guidance of a doctor, if you do not understand how long you need to take it is recommended to go to the hospital and consult a specialized doctor.