OpenBilldrug price receipt

NADAC week of 2026-10-14

PHENTERMINE 15 MG CAPSULE

For 30 capsules

Pharmacies pay

$3.04 filed

30 × $0.10137 per EA

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

Medicare Part D paid

$4.96 filed

30 × $0.16537 per EA, 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

1.6× estimated

Medicare paid 1.6× what pharmacies pay.

Part D averages every strength and form sold under “Phentermine HCl” 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. 2026-09-23 (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

$8.50 estimated

$3.04 + $0.46 (15%) + $5.00 fee per fill = $8.50

This is a model, not a price any pharmacy quoted. Shipping is not included. For a pack this cheap, the $5.00 fee is most of the estimate. How it is worked out

OpenBill calculation · nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-09-23 (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

PHENTERMINE 15 MG CAPSULE is how the CMS NADAC file names this product. The FDA NDC Directory lists it as phentermine hydrochloride.

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

Its labelers, the companies named on the label, are KVK-Tech, Inc., SUNRISE PHARMACEUTICAL, INC. and Precision Dose Inc.

FDA’s Established Pharmacologic Class for it is Sympathomimetic Amine Anorectic.

The NADAC file of 2026-10-14 prices it under 6 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 $3.04 for 30 capsules (30 × $0.10137 per EA, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-09-23. That is what pharmacies pay their suppliers, not what they charge you.

NADAC’s explanation code for it: 1, calculated from the most recently completed pharmacy survey.

All 6 NDCs

Other strengths, forms and brands

5 other products in the NADAC file share the FDA nonproprietary name phentermine hydrochloride with PHENTERMINE 15 MG CAPSULE.

ProductPharmacies pay per unitMedicare per unit
LOMAIRA 8 MG TABLET
generic · tablet
$0.61814 per EA filed
eff. 2026-09-23
$0.16537 per EA filed
Part D 2024 average
PHENTERMINE 8 MG TABLET
generic · tablet
$0.61814 per EA filed
eff. 2026-09-23
$0.16537 per EA filed
Part D 2024 average
PHENTERMINE 15 MG CAPSULE this page
generic · capsule
$0.10137 per EA filed
eff. 2026-09-23
$0.16537 per EA filed
Part D 2024 average
PHENTERMINE 30 MG CAPSULE
generic · capsule
$0.12596 per EA filed
eff. 2026-09-23
$0.16537 per EA filed
Part D 2024 average
PHENTERMINE 37.5 MG CAPSULE
generic · capsule
$0.1051 per EA filed
eff. 2026-09-23
$0.16537 per EA filed
Part D 2024 average
PHENTERMINE 37.5 MG TABLET
generic · tablet
$0.07268 per EA filed
eff. 2026-09-23
$0.16537 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. 2026-09-23 · 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

Compared with its class

The middle of its 6 NDCs’ NADAC prices is $0.10137 per EA filed.

Of the 13 other products in FDA’s Sympathomimetic Amine Anorectic class priced per EA, 12 have a higher middle NADAC price and 1 a lower one. The one in the middle is PHENTERMINE 8 MG TABLET, at $0.61814 per EA filed (eff. 2026-09-23).

Prices are compared per unit, whatever the strength or dose, and a class is not a list of substitutes.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

What Medicare paid

Medicare Part D paid $4.96 for 30 capsules, at an average of $0.16537 per EA in 2024 (2024-01-01 to 2024-12-31) for “Phentermine HCl”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).

That average covers 1,850 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 PHENTERMINE 15 MG CAPSULE 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 Phentermine HCl / Phentermine HCl: all makers, strengths, forms and routes combined, claim-weighted; gross cost incl. dispensing fees and patient pay, before rebates. Unit taken as NADAC's EA. Joined on generic name.