Western Ragweed

UNII

Last synced from FDA National Drug Code directory (United States) on June 3, 2026

Identification

ManufacturerGreer Laboratories, Inc.

CountryUS (United States)

ATC code—

Dispensing—

ReimbursedNo

SourceFDA National Drug Code directory (United States)

Last synced6/3/2026

Packs · 2

ndc11
2284013942
10 mL in 1 VIAL, MULTI-DOSE (22840-1394-2)
ndc11
2284013944
50 mL in 1 VIAL, MULTI-DOSE (22840-1394-4)

Annotations

UNII (FDA Substance ID)

RX18M46K8L

AMBROSIA PSILOSTACHYA POLLEN

RxCUI 851985

Raw payload (JSON)

{
  "unii": {
    "unii": "RX18M46K8L",
    "rxcui": "851985",
    "inchikey": null,
    "display_name": "AMBROSIA PSILOSTACHYA POLLEN",
    "substance_type": "structurallyDiverse",
    "ingredient_type": "INGREDIENT SUBSTANCE"
  },
  "route": "INTRADERMAL; PERCUTANEOUS; SUBCUTANEOUS",
  "productid": "22840-1394_36ac4a35-6d7b-a249-e063-6294a90a0b70",
  "productndc": "22840-1394",
  "dosage_form": "SOLUTION",
  "dea_schedule": null,
  "product_type": "NON-STANDARDIZED ALLERGENIC",
  "substance_name": "AMBROSIA PSILOSTACHYA POLLEN",
  "proprietary_name": "Western Ragweed",
  "active_ingred_unit": "[PNU]/mL",
  "application_number": "BLA101833",
  "marketing_category": "BLA",
  "nonproprietary_name": "Ambrosia psilostachya",
  "start_marketing_date": "19810915",
  "active_numerator_strength": "40000"
}

Access this data programmatically

Query Western Ragweed and 610,000+ other drug records through a single REST API — with a last_synced_at provenance stamp on every response. Free tier includes 100 requests/day.

Get a free API key Read the API docs