
| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 100mg | 30 tablets | $60.99 | $10.61 |
| 300mg | 30 tablets | $124.79 | $12.27 |


Get Isoniazid for as low as $12.27, which is 88% off the average retail price of $104.06 for the most common version, by using a GoodRx coupon.
GoodRx coupon prices last updated on 02/02/26.
Popular offers