Pulmonary hypertension, also known as pulmonary arterial hypertension, refers to pulmonary artery systolic pressure >50mmHg or Doppler echocardiography suggesting peak tricuspid flow velocity >3.4m/s. Oral medications include calcium channel blockers, prostacyclin, bosentan, anticoagulant medications, diuretics, and digoxin. 1.Vasodilator drugs: (1) Calcium channel blockers (CCB), including amlodipine, nifedipine, and diltiazem, can be given to patients with a positive acute vascular response test; (2) Prostacyclin:such as beclomethasone sodium and prostacyclin can dilate blood vessels to reduce pulmonary artery pressure. (3) Endothelin receptor antagonists, such as bosentan, andrisentan. (4) Phosphodiesterase-5 inhibitors: including sildenafil. 2. Anticoagulant therapy: oral anticoagulants such as warfarin and rivaroxaban to reduce the risk of intravascular thrombosis. 3. Diuretics: oral diuretics such as furosemide, torasemide, spironolactone, etc. can be taken when right heart failure, fluid retention, hepatic stasis, etc. occur in pulmonary hypertension. Pulmonary arterial hypertension requires prompt medical attention, and cause-specific treatment after clarifying the cause of the disease. The above medications should be used under the supervision of a physician.