The difference between Diltiazem capsules and tablets is different in terms of frequency of use, feeling of taking, odor and dosage. 1. Frequency of use: The capsules are basically slow-release capsules and controlled-release capsules. Slow-release/controlled-release drugs are released more slowly in the body than ordinary tablets, so they can be taken 1~2 times a day. While ordinary tablets are released faster in the body and metabolized faster, so they need to be taken 3~4 times a day. Extended-release / controlled-release capsules help to reduce the number of times to take medication, increase the medication adherence of drug users. 2. Taking feeling: different dosage forms of the drug taste, swallowing different feelings, capsules are softer than tablets, taking experience is generally better, less foreign body sensation. Drug users can choose their favorite dosage form to enhance the feeling and experience of taking drugs. 3. Odor: general drugs have their own unique chemical composition of the odor carried by the capsule can be masked through the capsule shell of this odor. Ordinary tablets in the absence of special treatment, the special odor of the drug is heavier, part of the drug users are difficult to accept, in this case, you can choose the capsule. 4. Dosage: Capsules and tablets also differ in the single dose, in the case of Diltiazem, there are 30mg, 90mg, 200mg and other dosage forms, which can be chosen according to the needs. To summarize, there are more differences between different dosage forms, and the choice should be based on individual circumstances and under the guidance of a physician.