Here is a table of pharmaceutical company research compound stems. Typically these stems are used before a series of digits to uniquely identify a compound with a company. An example would be UK-92,480 which has a UK- stem and therefore is from Pfizer's compound set.
Here are some additional codes, uploaded on 23rd August 2010.
This table was first uploaded on 14th August 2010, and was last updated on 14th August 2010.
Here are some additional codes, uploaded on 23rd August 2010.
| Research Code Stem | Current Company | Country | Notes |
| XEN | Xenome | Australia | |
| CDY | Cellmid | Australia | |
| VIR | Virax | Australia | |
| SPC | Santaris | Denmark | |
| WIN | SanofiAventis | France | |
| GFT | GenFit | France | |
| AEZS | Aeterna Zentaris | Germany | |
| APG | Apogenix | Germany | |
| WIN | Bayer-Schering | Germany | Winthrop |
| DG | DeveloGen | Germany | |
| GT | Ganymed | Germany | |
| JSM | Jerini | Germany | |
| KN | KeyNeurotek | Germany | |
| NOX | Noxxon Pharma | Germany | |
| ATU | Silence Therapeutics | Germany | Atugen |
| VAS | VasoPharm | Germany | |
| DG | Decode Genetics | Iceland | |
| CGEN | Compugen | Israel | |
| NNZ | Neuren Pharmaceuticals | New Zealand | |
| SB | S*Bio | Singapore | |
| SYL | Sylentis | Spain | |
| AXP | Axcentura | Sweden | |
| CIBA | Novartis | Switzerland | Ciba-Geigy |
| EG | Ark Therapetuics | UK | |
| KAR | Karus | UK | |
| SLC | Solace | UK | |
| SXN | Syntaxin | UK | |
| PRX | Proximagen | UK | |
| ACH | Achilion Pharmaceuticals | USA | |
| ALKS | Alkermes | USA | |
| AT | Amicus Therapeutics | USA | |
| ANA | Anadys | USA | |
| AG | Antigenics | USA | |
| BMN | BioMarin Pharmaceuticals | USA | |
| BCI | BrainCells | USA | |
| CR | Cara Therapeutics | USA | |
| CXL | Cardioxyl Pharmaceuticals | USA | |
| CER | Cerenis | USA | |
| CBLB | Cleveland Biolabs | USA | |
| CRX | CombinatoRx | USA | |
| CB | Cubist | USA | |
| DX | Dyax | USA | |
| ELND | Elan Corp. | USA | |
| EC | Endocyte | USA | |
| GI | GlobeImmune | USA | |
| HZT | Horizon Pharma | USA | |
| IDX | Idenix | USA | |
| IMO | Idera | USA | |
| IPI | infinity | USA | |
| KNS | Knopp Neuroscience | USA | |
| LX | Lexicon | USA | |
| NKTR | Nektar | USA | |
| NX | NephRx | USA | |
| NVC | NovaBay | USA | |
| NOV | Novelos | USA | |
| NP | NuPathe | USA | |
| ONX | Onyx | USA | |
| PRT | Proteon | USA | |
| QPI | Quark Pharmaceuticals | USA | |
| RX | Rib-X | USA | |
| TC | Targacept | USA | |
| TLN | TetraLogic Pharmaceuticals | USA | |
| TMC | Tibotec | USA | |
| TZP | Tranzyme Pharma | USA | |
| TRV | Trevana | USA | |
| TRU | Trubion | USA | |
| VRS | Versatis | USA | |
| ZC | ZyStor Therapeutics | USA | |
| ARD | Aradigm | USA | |
| MBX | Metabolex | USA | |
| SR | SRI International | USA |
This table was first uploaded on 14th August 2010, and was last updated on 14th August 2010.
| Research Code Stem | Current Company | Country | Notes |
| MBR | 3M Pharmaceuticals | USA | |
| R | 3M Pharmaceuticals | USA | |
| S | 3M Pharmaceuticals | USA | |
| FG | AB Ferrosan | Sweden | |
| AB | AB Science | France | |
| A | Abbott Laboratories | USA | |
| ABT | Abbott Laboratories | USA | |
| DU | Abbott Laboratories | USA | Solvay |
| KC | Abbott Laboratories | USA | Solvay |
| ABIO | Abiogen | Italy | |
| ABI | Abraxis | USA | |
| ACP | Acadia | USA | |
| AN | Access | USA | |
| ABR | Active BIotech | Sweden | |
| ADX | Addex | Switzerland | |
| ADL | Adolor | USA | |
| AMI | Advanced Magnetics Inc. | USA | |
| RGB | Agennix | Germany | |
| AC | Ajinomoto | Japan | |
| AL | Alcon Labs. | USA | |
| ALXN | Alexion | USA | |
| L | Alfa Wassermann | Italy | |
| AZM | Alizyme | UK | |
| AGN | Allergan | USA | |
| LAS | Almirall | Spain | |
| PF | Almirall | Spain | |
| ALTU | Althea | USA | Altus |
| AT | Althea | USA | |
| AC | Ambit Biosciences | USA | |
| ABX | Amgen | USA | AbGenix |
| AMG | Amgen | USA | |
| T | Amgen | USA | Tularik |
| AM | AMRAD | Australia | |
| AC | Amylin Pharmaceuticals | USA | |
| AN | Anacor | USA | |
| CGT | Anesiva | USA | Corgentech |
| AF | Angelini Group | Italy | |
| AS | Antisoma | UK | |
| IGN | Aphton (Igeneon) | Austria | |
| AME | Applied Molecular Evolution | USA | |
| ARC | Archemix | USA | |
| RDEA | Ardea Biosciences | USA | |
| APD | Arena | USA | |
| AP | Ariad | USA | |
| AR | Arno Therapeutics | USA | |
| ARQ | Arqule | USA | |
| ARRY | Array BioPharma | USA | |
| AWD | Asta Medica | Germany | |
| D | Asta Medica | Germany | |
| ASK | Astellas | Japan | |
| FK | Astellas | Japan | Fujisawa |
| FR | Astellas | Japan | Fujisawa |
| WF | Astellas | Japan | Fujisawa |
| Y | Astellas | Japan | Yamanouchi |
| YM | Astellas | Japan | Yamanouchi |
| AT | Astex Therapeutics | UK | |
| A | AstraZeneca | UK | Astra |
| AZD | AstraZeneca | UK | |
| CAM | AstraZeneca | UK | Medimmune |
| CAT | AstraZeneca | UK | CAT |
| H | AstraZeneca | UK | |
| ICI | AstraZeneca | UK | Imperial Chemical Industries |
| KU | AstraZeneca | UK | Kudos |
| KWD | AstraZeneca | UK | |
| M | AstraZeneca | UK | |
| OGT | AstraZeneca | UK | Oxford GlycoSciences |
| ZD | AstraZeneca | UK | |
| ZM | AstraZeneca | UK | |
| AGIX | Athergenics | USA | |
| AV | Aveo Pharma | USA | |
| AXL | Axelar | Sweden | |
| AC | BASF | Germany | |
| BAS | BASF | Germany | |
| BAL | Basilea | Switzerland | |
| BAX | Baxter Healthcare Corp. | USA | |
| BAY | Bayer-Schering | Germany | |
| CK | Bayer-Schering | Germany | |
| FBA | Bayer-Schering | Germany | |
| SH | Bayer-Schering | Germany | |
| TR | Bayer-Schering | Germany | |
| TVX | Bayer-Schering | Germany | |
| ZK | Bayer-Schering | Germany | Schering |
| BIM | Beaufour-Ipsen | France | |
| BN | Beaufour-Ipsen | France | |
| BCH | BioChem Pharma | Canada | |
| BCX | BioCryst Pharmaceuticals | USA | |
| BIO | Biogen IDEC | USA | |
| IDEC | Biogen IDEC | USA | IDEC |
| BL | Biogglan Labs | UK | |
| BLX | Biolex | USA | |
| BM | BioMarin Pharmaceuticals | USA | |
| IRFI | Biomedica Foscama | italy | |
| BP | Bioprojet Pharma | France | |
| BRI | BioResearch Ireland | Ireland | |
| BX | Biorex Laboratories | UK | |
| BST | BioStratum | USA | |
| BT | Biotest | Germany | |
| BVT | Biovitrum | Sweden | |
| BIW | Biowa | Japan | |
| BEA | Boehringer-Ingelheim | Germany | |
| BI | Boehringer-Ingelheim | Germany | |
| BX | Boehringer-Ingelheim | Germany | |
| KO | Boehringer-Ingelheim | Germany | |
| ST | Boehringer-Ingelheim | Germany | |
| TH | Boehringer-Ingelheim | Germany | |
| WEB | Boehringer-Ingelheim | Germany | |
| BBT | Bolder BioTechnology | USA | |
| B | Bracco | italy | |
| BB | Bristol-Myers Squibb | USA | |
| BL | Bristol-Myers Squibb | USA | |
| BMS | Bristol-Myers Squibb | USA | |
| BMY | Bristol-Myers Squibb | USA | |
| BU | Bristol-Myers Squibb | USA | |
| MJ | Bristol-Myers Squibb | USA | |
| SQ | Bristol-Myers Squibb | USA | |
| BB | British Biotech | UK | |
| B | Byk Gulden Lomberg Chemische Fabrik | Germany | |
| BY | Byk Gulden Lomberg Chemische Fabrik | Germany | |
| CAL | Callistoga | USA | |
| CLX | Calyx Therapeutics | USA | |
| W | Carter-Wallace | USA | |
| CC | Celgene | USA | |
| CT | Cell Therapeutics | USA | |
| CNTO | Centocor | USA | |
| CDRI | Central Drug Research Inst. | India | |
| CEP | Cephalon | USA | |
| CERE | Ceregene | USA | |
| CRE | Cermol | switzerland | |
| CHX | Chemex Pharmaceuticals Inc. | USA | |
| CHF | Chiesi | italy | |
| CKD | Chong Kun Dang | Korea | |
| CHR | Chroma Therapeutics | UK | |
| CPR | Clarion Pharmaceuticals | USA | |
| COL | Collagenex | USA | |
| ATG | CoMentis | USA | Athenagen |
| CTS | CoMentis | USA | |
| CP | Cortech Inc. | USA | |
| CX | Cortex Pharmaceuticals | USA | |
| CSL | CSL Ltd | Australia | |
| CT | Cure Tech | Israel | |
| CUDC | Curis | USA | |
| CVT | CV Therapeutics | USA | |
| CYC | Cyclacel | UK | |
| CX | Cylene | USA | |
| CNI | Cytokine PharmaSciences | USA | |
| CS | DaiichiSankyo | Japan | Sankyo |
| D | DaiichiSankyo | Japan | Daiichi |
| DJ | DaiichiSankyo | Japan | Daiichi |
| DS | DaiichiSankyo | Japan | Daiichi |
| ES | DaiichiSankyo | Japan | Sankyo |
| F | DaiichiSankyo | Japan | Sankyo |
| R | DaiichiSankyo | Japan | Sankyo |
| RS | DaiichiSankyo | Japan | Sankyo |
| TRA | DaiichiSankyo | Japan | Sankyo |
| AB | Dainippon | Japan | |
| AD | Dainippon | Japan | |
| DCC | Deciphera | USA | |
| DG | Decode | Iceland | |
| DIO | Diobex | USA | |
| DF | Dompe Farmaceutici | italy | |
| DA | Dong A | Korea | |
| DOV | DOV Pharmaceuticals | USA | |
| EL | Dow AgroSciences | USA | |
| ACC | DuPont | USA | |
| ASL | DuPont | USA | |
| DMP | DuPont | USA | |
| DPC | DuPont | USA | |
| DUP | DuPont | USA | |
| EXP | DuPont | USA | |
| SE | DuPont | USA | |
| DPX | DuPont Crop Protection | USA | |
| EF | Efamol | UK | |
| EGIS | EGIS | Hungary | |
| EGYT | EGIS | Hungary | |
| E | Eisai | Japan | |
| AN | Elan Corp. | Ireland | |
| EL | Elan Corp. | Ireland | |
| ELB | Elbion | Belgium | |
| A | Eli Lilly | USA | |
| BDF | Eli Lilly | USA | |
| IC | Eli Lilly | USA | ICOS |
| LY | Eli Lilly | USA | |
| ETI | Elusys | USA | |
| TBC | Encysive | USA | Texas Biotechnology Corp |
| ENMD | Entremed | USA | |
| EZ | Enzon | USA | |
| CY | Epimmune | USA | |
| ER | Ergo Science | USA | |
| EN | Essential Nutrition | UK | |
| E | Esteve | Spain | |
| CYT | EUSA | UK | |
| EV | Evolutec | UK | |
| EVT | Evotec | Germany | |
| XL | Exelixis | USA | |
| FI | Ferrer | Spain | |
| F | Ferring | Sweden | |
| FG | FGene | France | |
| FID | Fidia | Italy | |
| FMC | FMC | USA | |
| LF | Fournier | France | |
| FBT | Fresenius | Germany | |
| LG | Fresenius | Germany | |
| F | Fujirebio | Japan | |
| GLPG | Galapagos | Belgium | |
| GEA | GEA | Denmark | |
| RGH | Gedeon Richter | Hungary | |
| GPX | Gem Pharmaceuticals | USA | |
| GL | Genelabs Technologies | USA | |
| G | Genentech | USA | |
| GDC | Genentech | USA | |
| G | Genta Inc | USA | |
| GENZ | Genzyme | USA | |
| GS | Gilead Sciences | USA | |
| AH | GlaxoSmithKline | UK | Allen & Hanburys |
| BRL | GlaxoSmithKline | UK | |
| BW | GlaxoSmithKline | UK | Borroughs Wellcome |
| CG | GlaxoSmithKline | UK | |
| GI | GlaxoSmithKline | UK | |
| GR | GlaxoSmithKline | UK | |
| GSK | GlaxoSmithKline | UK | |
| GW | GlaxoSmithKline | UK | |
| SB | GlaxoSmithKline | UK | SmithKlineBeecham |
| SK&F | GlaxoSmithKline | UK | SmithKlineFrench |
| SKF | GlaxoSmithKline | UK | SmithKlineFrench |
| SN | GlaxoSmithKline | UK | |
| GRD | Glenmark | India | |
| GT | Gliatech | USA | |
| Go | Godecke | Germany | |
| Goe | Godecke | Germany | |
| SM | Greenwich Pharmaceuticals | USA | |
| CG | Grunenthal | Germany | |
| UR | Grupo Uriach | Spain | |
| HGP | H. G. Pars Labs. | USA | |
| HML | Hemosol | Canada | |
| AC | Hercules | USA | |
| HSR | Hokuriku Seiyaku | Japan | |
| HE | Hollis-Eden Pharmaceuticals | USA | |
| HGS | Human Genome Science | USA | |
| ICA | Icagen | USA | |
| ICN | ICN Pharmaceuticals | USA | |
| S | ICN Pharmaceuticals | USA | |
| IMC | ImClone Systems | USA | |
| IMGN | Immunogen | USA | |
| IMMU | Immunomedics | USA | |
| INCB | Incyte | USA | |
| INX | Inex Pharmaceutical | Canada | |
| IPL | Inflazyme | Canada | |
| IZP | Inflazyme | Canada | |
| INH | Inhibitex | USA | |
| IPH | Innate Pharma | France | |
| INO | Innothera Industries | France | |
| INNO | Innovive Pharmaceuticals | USA | |
| INSM | Insmed | USA | |
| INGN | Introgen | USA | |
| STZ | Ipsen | France | Sterix |
| ISF | ISF | Italy | |
| MT | Ishihara Sangyo | Japan | |
| ISIS | ISIS Pharmaceuticals | USA | |
| LR | Istituto Lusofarmaco D'Italia | Italy | |
| ITF | Italfarmaco | Italy | |
| JTP | Japan Tobacco | Japan | |
| JTT | Japan Tobacco | Japan | |
| TO | Japan Tobacco | Japan | |
| JNJ | Johnson & Johnson | USA | |
| McN | Johnson & Johnson | USA | |
| ORF | Johnson & Johnson | USA | |
| RWJ | Johnson & Johnson | USA | |
| R | Johnson & Johnson | USA | |
| JM | Johnson Matthey | USA | |
| JO | Jouveinal Labs. | France | |
| JI | Jubilant Innovation | India | |
| KAI | KAI Pharmaceuticals | USA | |
| KP | Kaken | Japan | |
| S | Kaken | Japan | |
| KB | Kanebo | Japan | |
| KB | KaroBio | Sweden | |
| KC | Kemia | USA | |
| KRX | Keryx Biopharmaceuticals | USA | |
| KRN | Kirin Brewery | Japan | |
| KUX | Kissei | Japan | |
| K | Klinge Pharma | Germany | |
| BTS | Knoll | Germany | |
| LU | Knoll | Germany | |
| RV | Knoll | Germany | |
| KI | Kos | USA | |
| KOS | Kosan | USA | |
| K | Kowa Company | Japan | |
| KRH | Kureha | Japan | |
| AM | Kyorin | Japan | |
| KRP | Kyorin | Japan | |
| KU | Kyorin | Japan | |
| DC | Kyowa Hakko Kogyo | Japan | |
| EI | Kyowa Hakko Kogyo | Japan | |
| KD | Kyowa Hakko Kogyo | Japan | |
| KF | Kyowa Hakko Kogyo | Japan | |
| KT | Kyowa Hakko Kogyo | Japan | |
| KW | Kyowa Hakko Kogyo | Japan | |
| UC | Kyowa Hakko Kogyo | Japan | |
| XK | Kyowa Hakko Kogyo | Japan | |
| LG | Lab. Guidotti | Italy | |
| FLC | Labs. Delagrange | France | |
| CRL | Labs. Lafon | France | |
| LA | Lacer | France | |
| LK | Lek Pharmaceuticals | Slovenia | |
| LEO | Leo Pharma | Denmark | |
| P | Leo Pharma | Denmark | |
| LFB | LFB Biotechnologies | France | |
| GM | Ligand Pharmaceuticals | USA | |
| LG | Ligand Pharmaceuticals | USA | |
| LGD | Ligand Pharmaceuticals | USA | |
| SGX | Lilly | USA | |
| LW | Luitpold Pharma | Germany | |
| LU | Lundbeck | Denmark | |
| SGS | Lundbeck | Denmark | Saegis |
| LS | Lymphosign | USA | |
| MGA | MacroGenics | USA | |
| RAV | Macrogenics (was Raven) | USA | |
| MSI | Magainin Pharmaceuticals | USA | |
| MP | Mallinckrodt | USA | |
| BAM | Maruko Seiyaku | Japan | |
| MPI | Matrix Pharmaceutical | USA | |
| MDX | Medarex | USA | |
| MEDR | Medco | USA | |
| MR | Medea Research | Italy | |
| MEDI | MedImmune | USA | |
| NOX | Medinox | USA | |
| MF | Mediolanum Farmaceutici | Italy | |
| ME | Meiji Seika Kaisha | Japan | |
| SF | Meiji Seika Kaisha | Japan | |
| MEM | Memory Pharmaceuticals | USA | |
| MEN | Menarini | Italy | |
| LM | Menarini | Italy | |
| CERM | Merck | USA | |
| KB | Merck | USA | Organon |
| L | Merck | USA | |
| MK | Merck | USA | |
| ORG | Merck | USA | Organon |
| SCH | Merck | USA | Schering-Plough |
| AS | Merck-Serono | Germany | |
| EMD | Merck-Serono | Germany | |
| EML | Merck-Serono | Germany | |
| EMR | Merck-Serono | Germany | |
| LCB | Merck-Serono | Germany | |
| LM | Merck-Serono | Germany | |
| LS | Merck-Serono | Germany | |
| TX | Merck-Serono | Germany | |
| ML | Merckle | Germany | |
| MM | Merrimack Pharmaceuticals | USA | |
| MB | MetaBasis | USA | |
| MBX | Metabolix | USA | |
| MGCD | MethylGene | USA | |
| MGI | MGI Pharma | USA | |
| MT | Micromet | Germany | |
| MV | Miravant | USA | |
| MCI | Mitsubishi Kasei | Japan | |
| MY | Mitsubishi Kasei | Japan | |
| MP | Mitsubishi Pharma | USA | |
| Y | Mitsubishi Tanabe Pharmaceuticals | Japan | |
| MKC | Mitsubishi-Tokyo | Japan | |
| MS | Mitsui Pharm | Japan | |
| VC | Mobil Chemical Co. | USA | |
| M | Mochida Pharmaceuticals | Japan | |
| MDI | Molecular Design International | USA | |
| CP | Monsanto | USA | |
| MON | Monsanto | USA | |
| MOR | Morphosys | Germany | |
| MORAb | Morphotek | USA | |
| MPC | Myriad | USA | |
| NP | Nascent | USA | |
| NIH | National Institutes of Health | USA | |
| NSC | National Institutes of Health | USA | |
| N | Nelson Res. & Dev. | USA | |
| NR | NeoRx | USA | |
| NE | Neose Technologies | USA | |
| NMS | Nerviano Medical Sciences | Italy | |
| NC | Neurochem | USA | |
| NBI | Neurocrine Biosciences | USA | |
| NGD | Neurogen Corporation | USA | |
| NS | NeuroSearch | Denmark | |
| NTC | Neurotech | France | |
| NB | NewBiotics | USA | |
| NCX | NicOx | France | |
| NIK | Nikken Chemical Co. | Japan | |
| NC | Nippon Chemiphar Co. | Japan | |
| NA | Nippon Kayaku Co. | Japan | |
| NK | Nippon Kayaku Co. | Japan | |
| NS | Nippon Shinyaku Co. | Japan | |
| NSC | Nippon Shinyaku Co. | Japan | |
| NF | Nippon Soda Co. | Japan | |
| NP | Nippon Soda Co. | Japan | |
| NSP | Nippon Soda Co. | Japan | |
| NZ | Nippon Zoki Pharmaceutical | Japan | |
| NIP | Nissan Chemical Ind. | Japan | |
| N | Nisshin Flour Milling Co | Japan | |
| NMI | NitroMed | USA | |
| NP | Noscira | Spain | |
| AW | Novartis | Switzerland | |
| Ba | Novartis | Switzerland | |
| BC | Novartis | Switzerland | |
| C | Novartis | Switzerland | |
| CG | Novartis | Switzerland | Ciba-Geigy |
| CGP | Novartis | Switzerland | Ciba-Geigy |
| CGS | Novartis | Switzerland | Ciba-Geigy |
| CHIR | Novartis | Switzerland | Chiron |
| G | Novartis | Switzerland | |
| GP | Novartis | Switzerland | |
| GS | Novartis | Switzerland | |
| HC | Novartis | Switzerland | |
| NVP | Novartis | Switzerland | |
| PN | Novartis | Switzerland | |
| SaH | Novartis | Switzerland | |
| SAN | Novartis | Switzerland | Sandoz |
| SDZ | Novartis | Switzerland | Sandoz |
| SMS | Novartis | Switzerland | |
| SN | Novartis | Switzerland | |
| NI | NovImmune (Merck Serono) | Switzerland | |
| NN | Novo-Nordisk | Denmark | |
| NNC | Novo-Nordisk | Denmark | |
| NO | Novo-Nordisk | Denmark | |
| NV | Novogen | Australia | |
| NPS | NPS Pharmaceuticals | USA | |
| NC | Nycomed Amersham | UK | |
| HN | Nycomed Pharma | Norway | |
| NY | Nycomed Pharma | Norway | |
| NX | Nymox Pharmaceutical | Canada | |
| A | Ohmeda Pharm. Prods. | USA | |
| I | Ohmeda Pharm. Prods. | USA | |
| OM | OM Pharma | Switzerland | |
| ON | Onconova | USA | |
| ON | Ono | Japan | |
| ONO | Ono | Japan | |
| OX | Orexo | Sweden | |
| FC | Orion Pharma | Finland | |
| MPV | Orion Pharma | Finland | |
| OR | Orion Pharma | Finland | |
| OSI | OSI | USA | |
| OT | Othera | USA | |
| OPC | Otsuka | Japan | |
| PAC | Pacific | USA | |
| PTI | Pain Therapeutics | USA | |
| PT | Palatin Technologies | USA | |
| PDL | PDL Biopharma | USA | |
| PW | Penwest | USA | |
| ADR | Pfizer | USA | |
| AG | Pfizer | USA | Aguoron |
| AHR | Pfizer | USA | |
| AY | Pfizer | USA | |
| CI | Pfizer | USA | |
| CL | Pfizer | USA | |
| CP | Pfizer | USA | |
| FCE | Pfizer | USA | |
| IMI | Pfizer | USA | |
| K | Pfizer | USA | |
| L | Pfizer | USA | Lederle |
| LJC | Pfizer | USA | |
| LL | Pfizer | USA | Lederle |
| LM | Pfizer | USA | |
| P | Pfizer | USA | |
| PA | Pfizer | USA | |
| PD | Pfizer | USA | Parke-Davis |
| PF | Pfizer | USA | |
| PH | Pfizer | USA | Pharmacia |
| PHA | Pfizer | USA | Pharmacia |
| PNU | Pfizer | USA | Pharmacia and Upjohn |
| SC | Pfizer | USA | Searle |
| SD | Pfizer | USA | |
| SU | Pfizer | USA | Sugen |
| U | Pfizer | USA | Upjohn |
| UK | Pfizer | USA | |
| W | Pfizer | USA | |
| WAY | Pfizer | USA | Wyeth |
| WY | Pfizer | USA | Wyeth |
| WYE | Pfizer | USA | Wyeth |
| PS | Pharmacopeia | USA | |
| PCI | Pharmacyclics | USA | |
| PF | Pharmos Corporation | USA | |
| PHX | Phenomix | USA | |
| F | Pierre Fabre | France | |
| ST | Pierre Fabre | France | |
| PLX | Plexxicon | USA | |
| P | Poli Group | Italy | |
| POL | Polifarma | Italy | |
| PRX | Predix | Israel | |
| EU | Procter & Gamble | USA | |
| FB | Procter & Gamble | USA | |
| NE | Procter & Gamble | USA | |
| PG | Procter & Gamble | USA | |
| PC | ProCyte Corporation | USA | |
| PRO | Progenics | USA | |
| PV | Provectus | USA | |
| RX | Reckitt & Colman | UK | |
| Rec | Recordati | Italy | |
| RG | Repligen | USA | |
| R | Rigel Pharmaceuticals | USA | |
| BBR | Roche | Switzerland | |
| BM | Roche | Switzerland | |
| KC | Roche | Japan | Chugai |
| PI | Roche | UK | Piramed |
| R | Roche | Switzerland | |
| Ro | Roche | Switzerland | |
| RS | Roche | Switzerland | |
| SG | Roche | Japan | Chugai |
| X | Roche | Switzerland | |
| FW | Rohm & Haas | USA | |
| RH | Rohm & Haas | USA | |
| CR | Rotta Farmaceutici | Italy | |
| AVE | SanofiAventis | France | Aventis |
| C | SanofiAventis | France | |
| CH | SanofiAventis | France | Chinoin Pharm. |
| CM | SanofiAventis | France | |
| CY | SanofiAventis | France | |
| DH | SanofiAventis | France | |
| DL | SanofiAventis | France | |
| FL | SanofiAventis | France | Chinoin Pharm. |
| HMR | SanofiAventis | France | Hoescht Marrion Roussell |
| HOE | SanofiAventis | France | Hoescht |
| HP | SanofiAventis | France | |
| HR | SanofiAventis | France | |
| L | SanofiAventis | France | |
| M&B | SanofiAventis | France | May & Baker |
| MD | SanofiAventis | France | |
| MDL | SanofiAventis | France | |
| MG | SanofiAventis | France | |
| P | SanofiAventis | France | |
| RG | SanofiAventis | France | |
| RMI | SanofiAventis | France | |
| RP | SanofiAventis | France | Rhone-Poulenc |
| RPR | SanofiAventis | France | Rhone-Poulenc-Rohrer |
| RU | SanofiAventis | France | Rousell-Uclaf |
| S | SanofiAventis | France | |
| SAR | SanofiAventis | France | |
| SL | SanofiAventis | France | |
| SNY | SanofiAventis | France | |
| SR | SanofiAventis | France | Sanofi Research |
| SSR | SanofiAventis | France | |
| WHR | SanofiAventis | France | |
| Win | SanofiAventis | France | |
| XRP | SanofiAventis | France | |
| DE | Santen | Japan | |
| SA | Santen | Japan | |
| SD | Santen | Japan | |
| SK | Sanwa | Japan | |
| NPC | Scios | USA | |
| SCIO | Scios | USA | |
| SC | Scotia Pharmaceuticals | UK | |
| SGN | Seattle Genetics | USA | |
| SF | Semafore | USA | |
| SEP | Sepracor | USA | |
| S | Servier | France | |
| SP | Shaman | USA | |
| SD | Shell Oil | USA | |
| S | Shionogi | Japan | |
| SPD | Shire | USA | |
| SGD | Siegfried Pharma | Switzerland | |
| ST | Sigma Tau | Italy | |
| SP | Signal Pharmaceuticals | USA | |
| SRT | Sirtris | USA | |
| YKP | SK Biopharm | Korea | |
| SPA | Societa Prodotti Antibiotici | Italy | |
| SLV | Solvay | Belgium | |
| SOU | Sosei | Japan | |
| SPC | Sphinx | USA | |
| STX | Stromedix | USA | |
| S | Sumitomo | Japan | |
| SM | Sumitomo | Japan | |
| SNS | Sunesis | USA | |
| SUN | Suntory | Japan | |
| SGI | SuperGen | USA | |
| PP | Syngenta | Switzerland | |
| STA | Synta | USA | |
| SYN | Taiho | Japan | |
| TAS | Taiho | Japan | |
| TF | Taiho | Japan | |
| TSU | Taiho | Japan | |
| YTR | Taiho | Japan | |
| TS | Taisho Seiyaku | Japan | |
| TN | Taiyo Pharm | Japan | |
| AA | Takeda | Japan | |
| AMA | Takeda | Japan | |
| CBP | Takeda | Japan | |
| CMI | Takeda | Japan | |
| CV | Takeda | Japan | |
| MLN | Takeda | Japan | Millennium |
| SCE | Takeda | Japan | |
| T | Takeda | Japan | |
| TAK | Takeda | USA | |
| TAN | Takeda | Japan | |
| TCV | Takeda | Japan | |
| T | Tanabe Seiyaku | Japan | |
| TA | Tanabe Seiyaku | Japan | |
| TMC | Tanabe Seiyaku | Japan | |
| TNX | Tanox | USA | |
| TAP | TAP Pharmaceuticals | USA | |
| TNP | TAP Pharmaceuticals | USA | |
| TG | Targegen | USA | |
| TGN | TeGenero | Germany | |
| TEI | Teijin | Japan | |
| TI | Teijin | Japan | |
| TMA | Teijin | Japan | |
| TZI | Teikoku Hormone Mfg. Co. | Japan | |
| TMK | Terumo Corp. | Japan | |
| TV | Teva Pharm. | Israel | |
| ECO | Thallion | USA | Ecopia |
| TLN | Thallion | USA | |
| TB | Thrombogenics | USA | |
| TY | Toa Etyo | Japan | |
| TOL | Tolera Therapeutics | USA | |
| TRX | TolerRx | USA | |
| TRK | Toray Industries | Japan | |
| FUT | Torii & Co. | Japan | |
| T | Toyama | Japan | |
| TRC | Tracon Pharmaceuticals | USA | |
| TG | Tragara | USA | |
| TJ | Tsumura Corp. | Japan | |
| TJN | Tsumura Corp. | Japan | |
| CDP | UCB | Belgium | |
| N | UCB | Belgium | |
| P | UCB | Belgium | |
| UCB | UCB | Belgium | |
| XR | UCB | UK | Xenova |
| UC | Uniroyal Chemical | USA | |
| VCS | Velsicol Chemical | USA | |
| V | Vernalis | UK | |
| VX | Vertex | USA | |
| VQD | Vioquest Pharmaceuticals | USA | |
| VB | Viventia Biotechnologies | USA | |
| WR | Walter Reed Army Institute of Research | USA | |
| Y | Welfide Corp. | Japan | |
| WX | Wilex | Germany | |
| XOMA | Xoma | USA | |
| XMP | Xoma Limited | USA | |
| XTL | XTL Bio | USA | |
| Z | Zambon Group | Italy | |
| Z | Zeria Pharm | Japan | |
| ZYC | Zycos | USA |