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Get Phentermine for as low as $4.37, which is 88% off the average retail price of $36.55 for the most common version, by using a GoodRx coupon.


| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 8mg | 30 tablets | $260.66 | $14.08 |
| 37.5mg | 30 tablets | $38.79 | $14.67 |
| 15mg | 30 capsules | $41.88 | $14.54 |
| 30mg | 30 capsules | $41.00 | $12.39 |
| 37.5mg | 30 capsules | $42.68 | $16.04 |
GoodRx coupon prices last updated on 03/10/26.
Sales tax may apply and is not included.