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Get Potassium Chloride ER for as low as $35.06, which is 62% off the average retail price of $91.29 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 8meq | 90 tablets | $55.98 | $23.78 |
| 10meq | 90 tablets | $24.65 | $3.27 |
| 15meq | 30 tablets | $34.15 | $18.69 |
| 20meq | 90 tablets | $23.80 | $9.44 |
| 8meq | 90 capsules | $164.47 | $27.29 |
| 10meq | 90 capsules | $73.41 | $28.77 |
Get an extra $4.65 off Potassium Chloride ER and up to 90% off all prescriptions. Gold plans start at just $9.99/mo. Cancel any time.*
GoodRx coupon prices last updated on 04/22/26.
*Prices subject to change without notice. Sales tax may apply and is not included.