Heart Disease Home > Tiazac Drug Information

Tiazac® (diltiazem hydrochloride) is a calcium channel blocker that is used to treat high blood pressure (hypertension) and certain types of chest pain (angina). As an extended-release medication, Tiazac only needs to be taken once a day.
Most people have no problems with Tiazac; however, the drug's safety information should be reviewed so that you are aware of possible side effects (such as headaches, dizziness, and swelling) and know the warning signs of an allergic reaction or other serious problem that requires prompt medical attention.
(For more information on this drug, click Tiazac. This article offers a complete overview, with details on other possible side effects, generic availability, how it performed in clinical trials, and more.)
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Last reviewed by: Arthur Schoenstadt, MD
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