Perindopril tablets work by being able to dilate blood vessels and treat diseases such as high blood pressure and heart failure; side effects, i.e., adverse reactions, include low blood pressure, dizziness, and headache. Perindopril Tablet is a kind of angiotensin converting enzyme inhibitor, which works through its active metabolite perindoprilat, and is able to dilate blood vessels, and can be clinically used for the treatment of heart failure, high blood pressure and other diseases. It should be noted that people who are allergic to perindopril tablets, pregnant or lactating women, bilateral renal artery stenosis, severe renal hypoplasia, and isolated kidney should not be treated with this medication; its adverse reactions include hypotension, dizziness, headache, gastrointestinal dysfunction, altered sense of taste, persistent dry cough, palpitations, anemia, muscle spasms, proteinuria, and chest pain, among other adverse reactions. Patients who need to use Perindopril Tablets for treatment are recommended to use the drug under the guidance of a doctor, and not to use the drug at will.