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Get Diltiazem ER (Cardizem LA) for as low as $71.70, which is 72% off the average retail price of $256.69 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 120mg | 30 tablets | $123.01 | $28.93 |
| 180mg | 90 tablets | $324.22 | $71.70 |
| 240mg | 90 tablets | $181.99 | $77.85 |
| 300mg | 30 tablets | $203.05 | $35.14 |
| 360mg | 30 tablets | $95.05 | $34.95 |
| 420mg | 30 tablets | $150.40 | $21.32 |
GoodRx coupon prices last updated on 03/15/26.
Sales tax may apply and is not included.