Prescription savings
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Medication discounts

Get Potassium Chloride ER for as low as $18.00, which is 76% off the average retail price of $73.95 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 |
|---|
| 8meq | 90 capsules | $251.32 | $26.41 |
| 10meq | 90 capsules | $78.24 | $29.21 |
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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 10/23/26.