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Get Guaifenesin DM for as low as $7.06, which is 30% off the average retail price of $10.09 for the most common version, by using a GoodRx coupon.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 100mg/ 10mg/ 5ml | 120 ml | $8.06 | $7.06 |
| 200mg/ 10mg | 30 capsules | $14.71 | $11.94 |
| 200mg/ 10mg/ 5ml | 473 ml | $12.27 | $12.27 |
| 200mg/ 20mg/ 10ml | 300 ml | N/A | $12.09 |
| 200mg/ 20mg/ 20ml | 118 ml | $10.74 | $6.93 |
| 400mg/ 20mg/ 20ml | 118 ml | $9.18 | $6.85 |
| 400mg/ 20mg | 30 tablets | $9.60 | $6.70 |
| 600mg/ 30mg | 20 tablets | $15.42 | $8.97 |
| 1200mg/ 60mg | 14 tablets | $7.99 | $7.99 |
GoodRx coupon prices last updated on 04/19/26.
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