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About GoodRx
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Medication discounts
Get Lactulose for as low as $12.73, which is 64% off the average retail price of $35.46 for the most common version, by using a GoodRx coupon.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 10g/ 15ml | 473 ml | N/A | $15.82 |
| 20g/ 30ml | 300 ml | $42.60 | $14.20 |
| 15 packets of 10g | 6 cartons | $5,576.67 | $234.75 |
| 30 packets of 10g | 1 carton | $352.92 | $81.25 |
| 15 packets of 20g | 1 carton | $1,757.98 | $47.43 |
| 30 packets of 20g | 1 carton | $234.38 | $90.36 |
200+ 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 07/29/26.
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