Prescription savings
Stop paying too much for your prescriptions. Compare prices, get pharmacy coupons, and save up to 80%.Resources
About GoodRx
Health conditions
Medications & treatment
Access & affordability
Well-being
Medication discounts

Get Potassium Chloride ER for as low as $16.17, which is 64% off the average retail price of $45.38 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 8meq | 90 tablets | $57.09 | $22.87 |
| 10meq | 90 tablets | $18.14 | $16.17 |
| 15meq | 30 tablets | $33.47 | $17.75 |
| 20meq | 90 tablets | $25.76 | $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 08/15/26.