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 $18.00, which is 75% off the average retail price of $72.64 for the most common version, by using a GoodRx coupon. Learn about saving on prescription medications with GoodRx Companion.


| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 8meq | 90 capsules | $252.46 | $25.42 |
| 10meq | 90 capsules | $77.74 | $28.96 |
Check your prescription
Pricing is calculated based on your prescription details.
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 09/08/26.