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Prescription medicine · generic available

Spinosad

Drug class: Pediculicide

The FDA’s “Established Pharmacologic Class”: the group of medicines that work in a similar way.

Official FDA data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the drug label, the NDC Directory, Drugs@FDA, recall reports and the drug shortage list. Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Spinosad used for?
The FDA-approved label (Natroba, Cipher Pharmaceuticals Inc., March 4, 2026) says: “NATROBA is a pediculicide indicated for the topical treatment of head lice infestations in adult and pediatric patients 6 months of age and older. NATROBA is a scabicide indicated for the topical treatment of scabies infestations in adult and pediatric patients 4 years of age and older. …” This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.
Does Spinosad have a boxed warning?
No. None of the 5 FDA labels we found for this medicine has a boxed warning.
Is there a shortage of Spinosad?
No current shortage is listed by the FDA for the products of this medicine (FDA data from October 30, 2026).
Has Spinosad been recalled?
No recall linked to the products of this medicine appears in the FDA enforcement reports we use.
Who makes Spinosad?
3 companies list prescription products of Spinosad in the FDA NDC Directory, including ParaPRO LLC, Cipher Pharmaceuticals Inc. and Allegis Pharmaceuticals, LLC.

What Spinosad is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

NATROBA is a pediculicide indicated for the topical treatment of head lice infestations in adult and pediatric patients 6 months of age and older. NATROBA is a scabicide indicated for the topical treatment of scabies infestations in adult and pediatric patients 4 years of age and older. …

— FDA label: Natroba, Cipher Pharmaceuticals Inc., effective March 4, 2026. Read the full label on DailyMed →

The FDA has 5 labels for products of this medicine (different makers and forms); uses can differ between them. Check the label that comes with your own medicine.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

The label quoted above has no boxed warning.

0 of 5 FDA labels for this medicine have a boxed warning.

Forms and how it is given

Dosage formsSuspension
RouteTopical
Prescription products5 in the FDA NDC Directory
Brand namesNatroba

What pharmacies pay (NADAC)

The National Average Drug Acquisition Cost (NADAC) is the average price U.S. retail pharmacies paid to buy one unit of a medicine (one tablet, one mL or one gram), from a monthly survey of pharmacy invoices by the Centers for Medicare & Medicaid Services (CMS). State Medicaid programs use it to pay pharmacies.

This is not the price you pay. What you pay depends on your insurance (copay or coinsurance), your pharmacy and any discounts, and pharmacies also charge for filling a prescription. Ask your pharmacist or your health plan what your price will be.

NADAC per unit for Spinosad, by strength and form
Strength and formGeneric or brandPharmacies pay
spinosad 9 mg/mL
suspension
Generic $2.01 per mL
spinosad 9 mg/mL
suspension
Brand: Natroba $2.20 per mL

NADAC list of November 4, 2026; these prices took effect on October 21, 2026. Shown only where a package’s NDC code matches the NADAC list exactly, and only for that exact strength and form: nothing is averaged across strengths. Strengths and forms not listed here have no NADAC price.

Source: NADAC (National Average Drug Acquisition Cost) 2026, data.medicaid.gov (CMS) →

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

FDA approval history

  • NDA: New Drug Application: how a new (usually brand-name) medicine is approved.
Brand and biologic applications
ApplicationSponsorApprovedLater changes approved
NDA022408
NATROBA
CipherJanuary 18, 2011 3, latest April 28, 2021
2021: Labeling · 2021: Efficacy · 2014: Efficacy

Shortage status

The FDA drug shortage list does not show these products.

FDA Drug Shortages database →

Recalls

No recall linked to these products (by their NDC code) appears in the FDA enforcement reports.

Official identifiers

RxCUI (RxNorm)1085816, 1085820
SPL set ID of the quoted label72cf38f4-9ef4-4b0e-b085-b02f399e2592
FDA labels (SPL)5
FDA applicationsNDA022408
Active ingredients (FDA)SPINOSAD

Sources

  1. FDA-approved label on DailyMed (National Library of Medicine) — Natroba, Cipher Pharmaceuticals Inc., effective March 4, 2026; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
  2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

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