
Get Effer-K for as low as $16.58, which is 31% off the average retail price of $23.91 for the most common version, by using a GoodRx coupon.

GoodRx coupon prices last updated on 11/03/25.
Popular offers
| BIN | 015995 | 
| PCN | GDC | 
| Group | GDRX | 
| Member ID | DR270548 |