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Medication discounts

Get Theophylline ER for as low as $36.81, which is 90% off the average retail price of $357.06 for the most common version, by using a GoodRx coupon.
You can save more on select medications with GoodRx Companion. See which medications are eligible.

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Pricing is calculated based on your prescription details.
| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 100mg | 30 tablets | $119.79 | $33.16 |
| 200mg | 60 tablets | $344.58 | $36.81 |
| 300mg | 60 tablets | $238.58 | $33.77 |
| 400mg | 30 tablets | $53.61 | $22.60 |
| 450mg | 60 tablets | $272.81 | $43.19 |
| 600mg | 60 tablets | $121.21 | $36.20 |
GoodRx coupon prices last updated on 10/08/26.