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Get Isoniazid for as low as $12.27, which is 89% off the average retail price of $107.13 for the most common version, by using a GoodRx coupon.


Popular offers
| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 100mg | 30 tablets | N/A | $11.72 |
| 300mg | 30 tablets | $126.24 | $12.27 |
| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 50mg/ 5ml | 473 ml | $371.56 | $112.01 |
GoodRx coupon prices last updated on 05/04/26.