Prescription savings
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Medication discounts

Get Potassium Chloride ER for as low as $21.38, which is 59% off the average retail price of $52.43 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.


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Pricing is calculated based on your prescription details.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 8meq | 90 tablets | $56.99 | $22.07 |
| 10meq | 90 tablets | $36.75 | $16.17 |
| 15meq | 30 tablets | $34.09 | $16.95 |
| 20meq | 90 tablets | $25.44 | $21.38 |
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 10/09/26.