Prescription savings
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Medication discounts

Get Potassium Chloride ER for as low as $10.11, which is 59% off the average retail price of $24.73 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.


Check your prescription
Pricing is calculated based on your prescription details.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 8meq | 90 tablets | $56.89 | $22.07 |
| 10meq | 90 tablets | $36.45 | $16.17 |
| 20meq | 90 tablets | $25.34 | $23.80 |
| 8meq | 90 capsules | $251.53 | $26.41 |
| 10meq | 90 capsules | $78.55 | $29.21 |
Popular offers
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 11/05/26.