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Diltiazem

Brand name: Tiazac

Diltiazem comes in 246 pill versions in our database, in 10 strengths, from 32 manufacturers. Check the imprint to tell them apart.

Diltiazem pill images

30 mg 7 pills

60 mg 13 pills

90 mg 13 pills

120 mg 35 pills

180 mg 22 pills

240 mg 20 pills

300 mg 16 pills

360 mg 14 pills

420 mg 4 pills

Other 6 pills

Search all 246 pills

What is Diltiazem used for?

Diltiazem is used for high blood pressure, atrial fibrillation (irregular heartbeat), fast heartbeat (SVT) and heart attacks.

Medicine type
Calcium channel blocker (blood pressure and heart medicine)
Official uses from the US prescribing label

Diltiazem Hydrochloride Extended-Release Capsules (Twice-a-Day Dosage) are indicated for the treatment of hypertension. They may be used alone or in combination with other antihypertensive medications, such as diuretics.

From the FDA-approved label on DailyMed (published Oct 05, 2026).

Doctors sometimes prescribe a medicine for other reasons too. If you are not sure what yours is for, ask your pharmacist.