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Appendix E

  1. Black—acetazolamide, aluminum hydroxide, aminophylline, 5-aminosalicylic acid, amphetamine, amphotericin B, antacids, anticoagulants, aspirin, betamethasone, bismuth, charcoal, chloramphenicol, chlorpropamide, clindamycin, copper, corticosteroids, cortisone, cyclophosphamide, cytarabine, digitalis, ethacrynic acid, ferrous salts, floxuridine, fluorides, fluorouracil, halothane, heparin, hydralazine, hydrocortisone, ibuprofen, indomethacin, iodine, levarterenol, levodopa, manganese, melphalan, methotrexate, methylprednisolone, paraldehyde, phenylephrine, phenolphthalein, phosphorus, potassium salts, prednisolone, procarbazine, reserpine, salicylates, sulfonamides, tetracycline, thallium, theophylline, thiotepa, triamcinolone, warfarin

  2. Gray—colchicine

  3. Green—indomethacin, iron, medroxyprogesterone, methylene blue

  4. Dark brown—dexamethasone

  5. Blue—boric acid, chloramphenicol, methylene blue

  6. Pink—anticoagulants, aspirin, salicylates

  7. Red—anticoagulants, aspirin, oxyphenbutazone, phenolphthalein, rifampin, salicylates, tetracycline

  8. Orange—phenazopyridine, rifampin

  9. Tan (clay colored)—isoniazid, kaolin, barium sulfate

  10. Tarry—warfarin, ergot preparations, ibuprofen, salicylates

  11. White/speckling—aluminum hydroxide, barium sulfate, indocyanine green

  12. Yellow—senna