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Get Phenobarbital for as low as $10.62, which is 62% off the average retail price of $27.81 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 15mg | 60 tablets | $16.07 | $10.32 |
| 16.2mg | 60 tablets | $29.87 | $10.96 |
| 30mg | 60 tablets | $22.68 | $10.96 |
| 32.4mg | 60 tablets | $36.95 | $14.19 |
| 60mg | 60 tablets | $28.27 | $10.24 |
| 64.8mg | 60 tablets | $46.36 | $15.49 |
| 97.2mg | 60 tablets | $60.50 | $18.07 |
| 100mg | 60 tablets | $38.18 | $12.79 |
| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 20mg/ 5ml | 120 ml | $27.12 | $13.04 |
GoodRx coupon prices last updated on 03/16/26.