Prescription savings
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 Effer-K for as low as $19.79, which is 40% off the average retail price of $32.90 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 |
|---|---|---|---|
| 10meq | 30 effervescent tablets | N/A | $20.91 |
| 20meq | 30 effervescent tablets | $35.09 | $21.57 |
| 25meq | 30 effervescent tablets | $20.95 | $17.24 |
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.