Overview
Tiazac is a prescription drug approved by the Food and Drug Administration (FDA) to treat hypertension and chronic stable angina. Tiazac is also known by its drug name, Diltiazem.

Tiazac is a calcium channel blocker. Calcium channel blockers are believed to work by dilating the arteries and decreasing the force with which the heart pumps.

How do I take it?
Tiazac is generally taken once daily.

Tiazac comes in capsule form.

Side effects
The FDA-approved label for Tiazac lists common side effects including dizziness, fatigue, cold symptoms, tingling sensation under the skin, nausea, and upset stomach.

Rare but serious side effects listed for Tiazac include congestive heart failure, liver damage, low blood pressure, and bradycardia (slowed heartbeat).

For more details about this treatment, visit:
Tiazac – RxList
http://www.rxlist.com/tiazac-drug.htm