A drug administered to a patient for treatment, listed in SEER*Rx as a chemotherapeutic, hormonal or immunotherapy agent should be coded under chemotherapy [#1390], hormone therapy [#1400] or immunotherapy [#1410] regardless of the primary site(s) listed in SEER*Rx for that agent. Do not code under the data item, Other Therapy [NAACCR #1420]. Refer to the 2026 SEER manual for more information.

Search Database
Name Category Primary Site Code?
Etidronate Disodium Ancillary Agent No
Deferoxamine Ancillary Agent No
Urokinase Ancillary Agent No
Sucralfate Ancillary Agent No
Letrazuril AIDS drug AIDS, Opportunistic infection No
Sulindac Ancillary Agent No
Ethambutol Hydrochloride AIDS drug No
Naproxen Sodium Ancillary Agent No
Loviride AIDS drug No
Desmethyl-misonidazole Ancillary Agent No
Etoprine Ancillary Agent No
Dextran Sulfate AIDS drug No
N-acetylcysteine AIDS drug No
Naltrexone Hydrochloride Ancillary Agent No
Nalaxone Hydrochloride Ancillary Agent No
Magnesium Sulfate Ancillary Agent No
Dimericine Ancillary Agent Skin cancer No
Diethyldithiocarbamate Ancillary Agent No
Fluorothymidine AIDS drug No
Etretinate Differentiation inducing agent No
Triflupromazine Hydrochloride Ancillary Agent No
Dimepranol Acedoben Ancillary Agent No
N1177 Ancillary Agent Other cancer No
Nabilone Ancillary Agent No
Acyclovir Ancillary Agent No
Name Primary Site
BVAM
BVCPP
BVDS
Bevacizumab + IFL
Biochemotherapy
BuCyE
C-TPF Head and Neck, stomach
CAC Breast, Ovary
CAF Breast
CAFP Breast
CAPIRI Colorectal, Esophagus, Stomach
CAPOX
CB
CCAVV Lung
CCNU-OP Brain
CCVV Lung
CCVVP Lung
CEF Breast
CEM
CEPP
CEV
CFAR
CFL Head and Neck
CFM Breast
CFPT
Glossary