Find expert answers to your health questions so you can make the best decisions for yourself and your family.Prescription savings
Stop paying too much for your prescriptions. Compare prices, get pharmacy coupons, and save up to 80%.Resources
About GoodRx
Find expert answers to your health questions so you can make the best decisions for yourself and your family.Health conditions
Medications & treatment
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Medication discounts
Popular offers
Get Diltiazem ER (Tiazac) for as low as $44.74, which is 79% off the average retail price of $213.58 for the most common version, by using a GoodRx coupon. Learn about saving on prescription medications with GoodRx Companion.
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Pricing is calculated based on your prescription details.
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 09/08/26.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 120mg | 90 capsules | $102.44 | $20.07 |
| 180mg | 90 capsules | $39.40 | $24.54 |
| 240mg | 90 capsules | $167.94 | $33.12 |
| 300mg | 90 capsules | $131.69 | $48.60 |
| 360mg | 90 capsules | $517.03 | $44.74 |
| 420mg | 90 capsules | $151.03 | $53.20 |
