Diltiazem Hydrochloride Tablets and Diltiazem Hydrochloride Extended-Release Capsules (II), both of which have the same indications, are not uniformly judged to be better. Diltiazem Hydrochloride Tablets and Diltiazem Hydrochloride Extended-Release Capsules (II), whose main ingredient is diltiazem hydrochloride, are both suitable for the treatment of mild and moderate hypertension and angina pectoris and other diseases. Adverse drug reactions include dizziness, rash, swelling, headache, nausea and weakness. The difference between the two lies in the different dosage forms, the former is a tablet, the latter is a capsule form, and is a slow-release type, the latter has the advantage of slow release of the contents of the drug, and the lowering of blood pressure for a longer period of time. The choice of these two drugs need to be combined with the specific condition of the patient’s physician to decide, the effect of the drug also varies from person to person, can not be unified to indicate which one of the drugs is better. Note that the contraindications of both drugs include patients with sick sinus node syndrome without a pacemaker, patients with atrioventricular block (degree II or degree III) without a pacemaker, patients with systolic blood pressure below 90mmHg and heart rate below 50 beats/min, patients with congestive heart failure, and patients who are allergic to this product. The use of specific drugs should be under the guidance of a specialist, and should not be used without authorization.