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Get Guaifenesin ER for as low as $10.30, which is 71% off the average retail price of $35.29 for the most common version, by using a GoodRx coupon.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 600mg | 60 tablets | $17.35 | $10.30 |
| 1200mg | 14 tablets | $11.23 | $9.37 |
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GoodRx coupon prices last updated on 05/01/26.
