Tiazac

Generic name:diltiazem [ dil-TYE-a-zem ]
Drug classes:Calcium channel blocking agents, Group IV antiarrhythmics

Medically reviewed by Philip Thornton, DipPharm. Last updated on May 11, 2022.

What is Tiazac?

Tiazac belongs to a group of drugs called calcium channel blockers. It works by relaxing the muscles of your heart and blood vessels.

Tiazac is used to treat hypertension (high blood pressure)

Tiazac is also used for the treatment of chronic stable angina. (chest pain).

Warnings

You should not use Tiazac if you have very low blood pressure, a serious heart condition such as "sick sinus syndrome" or "AV block" (unless you have a pacemaker), or if you have recently had a heart attack and you have a build-up of fluid in your lungs.

Before taking Tiazac, tell your doctor if you have kidney disease, liver disease, or congestive heart failure.

Tiazac may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. Do not stop taking this medication without first talking to your doctor. If you stop taking this medicine suddenly, your condition may become worse.

Tiazac may be only part of a complete program of treatment that also includes diet, exercise, and other medications. Follow your diet, medication, and exercise routines very closely.

If you are being treated for high blood pressure, keep using Tiazac even if you feel well. High blood pressure often has no symptoms.

Before taking this medicine

You should not use Tiazac if you are allergic to diltiazem, or if you have:

• a serious heart condition such as "sick sinus syndrome" or "AV block" (unless you have a pacemaker);

• very low blood pressure;

• if you have...