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Get Theophylline ER for as low as $29.05, which is 87% off the average retail price of $223.26 for the most common version, by using a GoodRx coupon.
Get an extra $10.00 off Theophylline ER and up to 90% off all prescriptions. Gold plans start at just $9.99/mo. Cancel any time.*
GoodRx coupon prices last updated on 05/10/26.
*Prices subject to change without notice. Sales tax may apply and is not included.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 100mg | 60 tablets | $233.42 | $63.81 |
| 200mg | 60 tablets | $342.67 | $36.81 |
| 300mg | 60 tablets | $269.35 | $34.75 |
| 400mg | 60 tablets | $103.15 | $23.65 |
| 450mg | 30 tablets | $159.73 | $35.54 |
| 600mg | 40 tablets | $125.95 | $27.94 |
