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Approved Stems
| Stem | Therapeutic Class |
|---|---|
| -ac | Antiinflammatory |
| -actide | Synthetic corticotropin |
| -adol or -adol- | Analgesic |
| -adox | Quinolone antibacterial |
| -aj- | Antiarrhythmic |
| -aldrate | Antacid aluminum salt |
| -alol | Combined alpha- and beta-blocker |
| -amivir | Neuraminidase inhibitor |
| -andr- | Androgen |
| -anserin | Serotonin 5-HT receptor antagonist |
| -antel | Antihelmintic |
| -arabine | Antineoplastic |
| -aril, -aril- | Antiviral |
| -arit | Antirheumatic |
| -arol | Anticoagulant |
| -arot- | Arotinoid |
| arte- | Antimalarial |
| -ase | Enzyme |
| -ast | Antiasthmatic |
| -astine | Antihistamine |
| -atadine | Tricyclic antiasthmatic |
| -azenil | Benzodiazepine receptor agonist or antagonist |
| -azepam | Antianxiety |
| -azepide | Cholecystokinin |
| -azocine | Narcotic antagonist |
| -azoline | Antihistamine or local vasoconstrictor |
| -azosin | Antihypertensive |
| -bactam | β-Lactamase inhibitor |
| -bamate | Tranquilizer |
| -barb or -barb- | Barbituric acid derivative |
| -bendazole | Antihelmintic |
| bol- or -bol- | Anabolic steroid |
| -butazone | Antiinflammatory |
| -caine | Local anesthetic |
| calci- or -calci- | Vitamin D analog |
| -camsule | Camphor sulfonic acid derivative |
| -carbef | Carbacephem antibiotic |
| cef- | Cephalosporin |
| -cept | Receptor |
| -cic | Hepatoprotective |
| -cidin | Natural antibiotic |
| -cillin | Penicillin |
| -citabrine | Nucleoside antiviral or antineoplastic |
| -clidine | Muscarinic agonist |
| -clone | Hypnotic tranquilizer |
| -cog | Blood coagulation factor |
| -conazole | Systemic antifungal |
| -cort- | Cortisone derivative |
| -crinat | Diuretic |
| -crine | Acridine derivative |
| -cromil | Antiallergic |
| -curium | Neuromuscular blocking agent |
| -cycline | Tetracycline antibiotic |
| -dan | Positive isotropic agent |
| -dapsone | Antimicro-bacterial |
| -dar | Multidrug inhibitor |
| -dil, dil-, or -dil- | Vasodilator |
| -dipine | Phenylpyridine |
| -dismase | Superoxide dismutase activity |
| -ditan | Antimigraine 5-HT receptor agonist |
| -dopa | Dopamine receptor agonist |
| -dralazine | Antihypertensive |
| -dronate | Calcium metabolism receptor |
| -ectin | Antiparasitic |
| -entan | Endothelin receptor antagonist |
| -erg- | Ergot alkaloid derivative |
| -eridine | Analgesic |
| -ermin | Growth factor |
| estr- or -estr- | Estrogen |
| -etanide | Diuretic |
| -ezolid | Oxazolidinone antibacterial |
| -fenamate | Fenamic acid ester or salt |
| -fenin | Diagnostic aid |
| -fenine | Analgesic |
| -fentanil | Narcotic analgesic |
| -fiban | Fibrinogen receptor antagonist |
| -fibrate | Clofibrate-type compound |
| -filcon | Hydrophilic contact lens material |
| -fingol | Sphingosine |
| -flapon | 5-Lipoxygenase activating protein inhibitor |
| -flurane | General inhalation anesthetic |
| -focon | Hydrophobic contact lens material |
| -formin | Oral hypoglycemic agent |
| -fradil | Calcium channel blocker |
| -fungin | Antifungal antibiotic |
| -fylline or -phylline | Theophylline derivative |
| -gab- | γ-Aminobutyric acid (GABA) mimetic |
| -gado- | Gadolinium derivative |
| -ganan | Antibacterial |
| -gest | Progestin |
| -giline | Monoamine oxidase inhibitor |
| -gillin | Antibiotic |
| gli- | Oral hypoglycemic agent |
| -glitazone | Antidiabetic |
| -gramostim | Granulocyte macrophage colony-stimulating factor |
| -grastim | Granulocyte colony-stimulating factor |
| -grel- or -grel | Platelet antiaggregant |
| guan- | Antihypertensive |
| -icam | Antiinflammatory |
| -ifen | Antiestrogens |
| -ilide | Class III antiarrhythmic |
| -imex | Immunostimulant |
| -imib | Acyl-CoA: cholesterol acetyltransferase inhibitor |
| -imode | Immunomodulator |
| -imus | Immunosuppressive |
| io- | Iodide-containing contrast medium |
| -irudinem | Anticoagulant |
| -isomide | Antiarrhythmic |
| -iurn | Quaternary ammonium derivative |
| -kacin | Antibiotic |
| -kalant | Potassium channel agonist |
| -kef- or -keph- | Encephalin agonist |
| -kin | Interleukin-type substance |
| -kinra | Interleukin receptor antagonist |
| -kiren | Renin inhibitor |
| -iazad | Lipid peroxidation inhibitor |
| -leukin | Interleukin-2-type compound |
| -lubant | Leukotriene antagonist |
| -lukast | Leukotriene receptor antagonist |
| -lutamide | Antiandrogen |
| -mab | Monoclonal antibody |
| -mantadine or -mantine- | Adamantine derivative |
| -mastat | Antineoplastic |
| -meline | Cholinergic agonist |
| -mer | Polymer |
| -mesine | Sigma receptor ligand |
| -mestane | Antineoplastic |
| -metacin | Antiinflammatory |
| -micin | Aminoglycoside antibiotic |
| -monam | Monobactam antibiotic |
| -mostim | Monocyte macrophage colony-stimulating factor |
| -motine | Antiviral |
| -moxin | Monoamine oxidase inhibitor |
| -mustine | Antineoplastic |
| -mycin | Macrolide antibiotic |
| -nab or -nab- | Cannabinol derivative |
| nal- | Narcotic agonist or antagonist |
| -navir | Human immunodeficiency virus protease inhibitor |
| -nidap | Nonsteroidal antiinflammatory |
| -nidazole | Antiprotozoal |
| nifur- | 5-Nitrofuran derivative |
| -nixin | Antiinflammatory |
| -olol | Beta-blocker |
| -olone | Steroid |
| -onoid | Topical steroid |
| -orex | Anorexiant |
| -orphan | Morphinan derivative |
| -oxacin | Quinolone antibiotic |
| -oxan | α-Adrenoreceptor antagonist |
| -oxanide | Antiparasitic |
| -oxef | Antibiotic |
| -oxetine | Antidepressant |
| -pafant | Platelet-activating factor antagonist |
| -pamide | Diuretic |
| -pamil | Coronary vasodilator |
| -pamine | Dopaminergic |
| -parcil | Antithrombotic |
| -parcin | Glycopeptide antibiotic |
| -parin | Heparin derivative |
| -paroid | Heparinoid-type substance |
| -penem | Antibiotic |
| perfl(u)- | Perfluorochemical |
| -peridol | Antipsychotic |
| -pirox | Antimycotic pyridine derivative |
| -plact | Platelet factor 4 analog |
| -planin | Antibacterial |
| -platin | Antineoplastic |
| -plon | Nonbenzodiazepine anxiolytic |
| -poetin | Erythropoietin |
| -porfin | Benzoporphyrin |
| -pramine | Imipramine-type antidepressant |
| -prazole | Antiulcer |
| pred-, -pred-, or -pred | Prednisone derivative |
| -pressin | Vasoconstrictor |
| -priode | Antipsychotic |
| -pril | Antihypertensive |
| -prilat | Antihypertensive |
| -prim | Antibacterial |
| -profen | Antiinflammatory |
| -prost or -prost- | Prostaglandin derivative |
| -queside | Cholesterol sequestrant |
| -ractam | Nootrope substance |
| -relin | Prehormone |
| -relix | Hormone release–inhibiting agent |
| -renone | Aldosterone antagonist |
| -restat- or -restat | Aldose reductase inhibitor |
| -retin | Retinol derivative |
| -ribine | Ribofuranil |
| rifa- | Antibiotic |
| -rinone | Cardiotonic |
| -rozole | Aromatase inhibitor |
| -rubicin | Antineoplastic antibiotic |
| -sal, -sal-, or sal- | Salicylic acid derivative |
| -sartan | Angiotensin II receptor antagonist |
| -semide | Diuretic |
| -serpine | Derivatives of rauwolfia alkaloid |
| -setron | Serotonin (5-HT3) antagonist |
| -sidomine | Antianginal |
| som- | Growth hormone derivative |
| som-, -bove | Bovine somatotropin derivative |
| som-, por- | Porcine somatotropin derivative |
| -spirone | Anxiolytic |
| -sporin | Immunosuppressant |
| -stat or -stat- | Enzyme inhibitor |
| -ster- | Steroid (androgen, anabolic) |
| -steride | Testosterone reductase inhibitor |
| -stigmine | Anticholinesterase |
| -stinmel | N-methyl D-aspartate receptor antagonist |
| sulfa- | Sulfonamide antibacterial |
| -sulfan | Antineoplastic alkylating agent |
| -tant | Tachykinin receptor antagonist |
| -tecan | Antineoplastic |
| -tepa | Antineoplastic |
| -teplase | Tissue-type plasminogen activator |
| -terol | Bronchodilator |
| -tesinol | Thymidylate synthetase inhibitor |
| -thiazide | Diuretic |
| -tiapine | Antipsychotic |
| -tiazem | Calcium channel blocker |
| -tibant | Antiasthmatic |
| -tide | Peptide |
| -tidine | H2-receptor antagonist |
| -tocin | Oxytocin derivative |
| -toin | Antiepileptic |
| -trexate | Folic acid analog |
| -trexed | Antineoplastic |
| -tricin | Antibiotic |
| -triptan | Antidepressant |
| -triptyline | Antidepressant |
| -troban | Antithrombotic |
| -trodast | Thromboxane A receptor antagonist |
| -troline | Antipsychotic |
| trop- or -trop- | Atropine derivative |
| -udine | Antineoplastic |
| -uplase | Urokinase-type plasminogen activator |
| -uracil | Uracil derivative used as thyroid antagonist or as antineoplastic |
| -uridine | Uridine derivative used as antiviral agent or as antineoplastic |
| -vastatin | Antihyperlipidemic |
| -verine | Spasmolytic |
| vin- or -vin- | Vinca alkaloid |
| -vir-, -vir, or vir- | Antiviral |
| -virsen | Antisense |
| -vudine | Antineoplastic or antiviral |
| -xanox | Antiallergic respiratory tract drug |
| -zolamide | Carbonic anhydrase inhibitor |
| -zolast | Benzoxazole antiasthmatic |