Prescription savings
Stop paying too much for your prescriptions. Compare prices, get pharmacy coupons, and save up to 80%.Health conditions
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Medication discounts

Get Isoniazid for as low as $17.13, which is 85% off the average retail price of $116.26 for the most common version, by using a GoodRx coupon. Learn about saving on prescription medications with GoodRx Companion.


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Pricing is calculated based on your prescription details.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 100mg | 30 tablets | N/A | $10.13 |
| 300mg | 30 tablets | $109.84 | $17.13 |
| 50mg/ 5ml | 360 ml | $277.24 | $86.32 |









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 09/16/26.
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