NATROBA 0.9% TOPICAL SUSP
FDA nonproprietary name: spinosad
For 120 mL
Pharmacies pay
$264.24 filed
120 × $2.20204 per ML
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
$266.61 filed
120 × $2.22178 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
1.0× estimated
Medicare paid about what pharmacies pay.
Part D averages every strength and form sold under “Natroba” / “Spinosad” 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
$308.88 estimated
$264.24 + $39.64 (15%) + $5.00 fee per fill = $308.88
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. 2026-09-23 (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
NATROBA 0.9% TOPICAL SUSP is how the CMS NADAC file names this product. The FDA NDC Directory lists it as spinosad, under the trade name “Natroba”.
FDA gives its dosage form as suspension and its route as topical.
Its labelers, the companies named on the label, are ParaPRO LLC and Cipher Pharmaceuticals Inc.
FDA’s Established Pharmacologic Class for it is Pediculicide.
The NADAC file of 2026-10-14 prices it under 2 NDCs (National Drug Codes).
NADAC classes it as a brand-name drug (rate-setting class B), and does not mark it as sold over the counter.
What pharmacies pay
Pharmacies pay $264.24 for 120 mL (120 × $2.20204 per ML, 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 codes for it: 1, calculated from the most recently completed pharmacy survey; 5, calculated based on package size.
NADAC also lists, on the row of its brand NDCs, what pharmacies pay for the generic equivalent, a different product: $2.0169 per ML filed.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
What NADAC measures · NADAC explanation codes
All 2 NDCs
- 52246-0929-04 · ParaPRO LLC · $2.20204 per ML · eff. 2026-09-23 filed
- 84635-0929-04 · Cipher Pharmaceuticals Inc. · $2.20204 per ML · eff. 2026-09-23 filed
Other strengths, forms and brands
1 other product in the NADAC file shares the FDA nonproprietary name spinosad with NATROBA 0.9% TOPICAL SUSP.
| Product | Pharmacies pay per unit | Medicare per unit |
|---|---|---|
| NATROBA 0.9% TOPICAL SUSP this page | $2.20204 per ML filed | $2.22178 per ML filed |
| SPINOSAD 0.9% TOPICAL SUSP | $2.0169 per ML filed | $1.71542 per ML filed |
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
What Medicare paid
Medicare Part D paid $266.61 for 120 mL, at an average of $2.22178 per ML in 2024 (2024-01-01 to 2024-12-31) for “Natroba” and “Spinosad”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).
That average covers 580 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 Part D spending measures · Which Medicare figure OpenBill compares · How the spread is worked out
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.
- What is your cash price for 120 mL? Is it lower than what I would pay through my insurance?
- Is a generic version available, and would it suit me? NADAC lists a generic with the same ingredient, strength and dosage form by FDA: SPINOSAD 0.9% TOPICAL SUSP. Ask your pharmacist or prescriber; do not switch on your own.
- How much is in the package I am getting? This page uses 120 mL; your package may hold a different amount.
- If you have Medicare Part D: what is my plan’s copay or coinsurance for it? The Part D average on this page is not what you pay.
- These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.
Questions
- Why is the comparison with Medicare for NATROBA 0.9% TOPICAL SUSP 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 Natroba / Spinosad: 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 brand name.
- Why does this page start at 120 mL?
- NADAC prices this product per ML. The FDA NDC Directory’s package description gives 120 mL in one package for all 2 NDCs of this product (“1 BOTTLE, PLASTIC in 1 CARTON (52246-929-04) / 120 mL in 1 BOTTLE, PLASTIC”), so the card starts at one package: 120 ML. Change it to match your prescription.