Find expert answers to your health questions so you can make the best decisions for yourself and your family.Prescription savings
Stop paying too much for your prescriptions. Compare prices, get pharmacy coupons, and save up to 80%.Resources
About GoodRx
Find expert answers to your health questions so you can make the best decisions for yourself and your family.Health conditions
Medications & treatment
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Medication discounts
Get Guaifenesin for as low as $5.60, save up to 80% off the average retail price 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 |
|---|
| 200mg | 30 tablets | N/A | $13.25 |
| 400mg | 30 tablets | N/A | $10.82 |
| 118ml of 100mg/ 5ml | 1 bottle | N/A | $11.10 |
| 473ml of 100mg/ 5ml | 1 bottle | N/A | $19.02 |
| 237ml of 200mg/ 10ml | 1 bottle | N/A | $13.94 |
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 08/15/26.
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