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| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 125mg | 18 chewable tablets | $12.64 | $11.34 |
| 125mg | 120 capsules | $46.47 | $22.63 |
| 180mg | 2 capsules | $9.34 | $5.29 |

Get Gas-X for as low as $4.34, which is 66% off the average retail price of $12.64 for the most common version, by using a GoodRx coupon.
GoodRx coupon prices last updated on 05/13/26.