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Stop paying too much for your prescriptions. Compare prices, get pharmacy coupons, and save up to 80%.Resources
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Pricing is calculated based on your prescription details.

Get Potassium Chloride ER for as low as $21.99, which is 54% off the average retail price of $47.36 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 8meq | 90 tablets | $57.09 | $22.67 |
| 10meq | 90 tablets | $17.84 | $16.17 |
| 15meq | 30 tablets | $33.59 | $17.55 |
| 20meq | 90 tablets | $25.95 | $23.80 |
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 08/18/26.