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Pricing is calculated based on your prescription details.

Get Diltiazem ER for as low as $38.57, which is 88% off the average retail price of $310.32 for the most common version, by using a GoodRx coupon.
You can save more on select medications with GoodRx Companion. See which medications are eligible.


| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 60mg | 60 capsules | $123.75 | $51.61 |
| 90mg | 60 capsules | $137.02 | $65.94 |
| 120mg | 90 capsules | $227.69 | $45.02 |
250+ medications are free, with hundreds more under $10. Plans start at $9.99/mo. (when paid yearly). Terms apply.
GoodRx coupon prices last updated on 10/24/26.
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