OpenBilldrug price receipt

NADAC week of 2026-10-14

THEOPHYLLINE 80 MG/15 ML SOLN

For 473 mL

Pharmacies pay

$52.90 filed

473 × $0.11183 per ML

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-08-19 · as of 2026-10-14 · retrieved 2026-10-17

Medicare Part D paid

$61.49 filed

473 × $0.13 per ML, Part D average

Medicare's price is not your price.

Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18


The spread

1.2× estimated

Medicare paid 1.2× what pharmacies pay.

Part D averages every strength and form sold under “Theophylline” / “Theophylline Anhydrous” into one figure, so it is not specific to this NDC.

OpenBill calculation · DSD_PTD_RY26_P04_V10_DY24_BGM.csv + nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-08-19 (file of 2026-10-14, retrieved 2026-10-17) · Part D 2024-01-01 to 2024-12-31 (file of 2026-06-25, retrieved 2026-10-18)

Cost-plus estimate

$65.84 estimated

$52.90 + $7.94 (15%) + $5.00 fee per fill = $65.84

This is a model, not a price any pharmacy quoted. Shipping is not included. How it is worked out

OpenBill calculation · nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-08-19 (file of 2026-10-14, retrieved 2026-10-17)

Open the interactive card Change the quantity, type what you were charged, and see every record in full.

What it is

THEOPHYLLINE 80 MG/15 ML SOLN is how the CMS NADAC file names this product. The FDA NDC Directory lists it as theophylline.

FDA gives its dosage form as solution and its route as oral.

Its labelers, the companies named on the label, are Cranbury Pharmaceuticals, LLC and Chartwell RX, LLC.

FDA’s Established Pharmacologic Class for it is Methylxanthine.

The NADAC file of 2026-10-14 prices it under 2 NDCs (National Drug Codes).

NADAC classes it as a generic drug (rate-setting class G), and does not mark it as sold over the counter.

What pharmacies pay

Pharmacies pay $52.90 for 473 mL (473 × $0.11183 per ML, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-08-19. That is what pharmacies pay their suppliers, not what they charge you.

NADAC’s explanation codes for it: 4, carried forward from the previous file; 5, calculated based on package size.

The NADAC of all 2 NDCs was carried forward from an earlier file (NADAC explanation code 2 or 4), not newly surveyed: those prices took effect on 2026-08-19. The file is new; the price is not.

All 2 NDCs

Other strengths, forms and brands

4 other products in the NADAC file share the FDA nonproprietary name theophylline with THEOPHYLLINE 80 MG/15 ML SOLN.

ProductPharmacies pay per unitMedicare per unit
THEOPHYLLINE 80 MG/15 ML SOLN this page
generic · solution
$0.11183 per ML filed
eff. 2026-08-19
$0.13 per ML filed
Part D 2024 average
THEOPHYLLINE ER 300 MG TABLET
generic · tablet, extended release
$0.32954 per EA filed
eff. 2026-09-23
$1.29285 per EA filed
Part D 2024 average
THEOPHYLLINE ER 400 MG TABLET
generic · tablet, extended release
$0.99526 per EA filed
eff. 2026-09-23
$1.29285 per EA filed
Part D 2024 average
THEOPHYLLINE ER 450 MG TABLET
generic · tablet, extended release
$1.09918 per EA filed
eff. 2026-09-23
$1.29285 per EA filed
Part D 2024 average
THEOPHYLLINE ER 600 MG TABLET
generic · tablet, extended release
$1.39516 per EA filed
eff. 2025-11-19 to 2026-01-14
$1.29285 per EA filed
Part D 2024 average

Part D is one average per brand and generic name, over every strength and form.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. between 2025-11-19 and 2026-09-23 (4 dates) · as of 2026-10-14 · retrieved 2026-10-17

Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18

What Medicare paid

Medicare Part D paid $61.49 for 473 mL, at an average of $0.13 per ML in 2024 (2024-01-01 to 2024-12-31) for “Theophylline” and “Theophylline Anhydrous”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).

That average covers 2,430 Part D claims (fills, including refills) for 2024-01-01 to 2024-12-31, across every maker, strength and form under the name.

Medicare's price is not your price.

What to ask at the counter

None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.

Questions

Why is the comparison with Medicare for THEOPHYLLINE 80 MG/15 ML SOLN labelled estimated?
Beyond what the card shows, the records give these reasons: The Part D figure covers 2024-01-01 to 2024-12-31; the NADAC price is from the file of 2026-10-14. Part D spending basis, as the Part D record states it: Part D 2024 average spend per dosage unit for Theophylline / Theophylline Anhydrous: all makers, strengths, forms and routes combined, claim-weighted; gross cost incl. dispensing fees and patient pay, before rebates. Unit taken as NADAC's ML. Joined on generic name.
Why does this page start at 473 mL?
NADAC prices this product per ML. The FDA NDC Directory’s package description gives 473 mL in one package for all 2 NDCs of this product (“473 mL in 1 BOTTLE (27808-033-01)”), so the card starts at one package: 473 ML. Change it to match your prescription.