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Drugs

  • Acetaminophen

  • Alcohol (if concomitant liver disease)

  • Amiodarone (Cordarone)

  • Anabolic steroids

  • Cimetidine (Tagamet)

  • Ciprofloxacin (Cipro)

  • Disulfiram (Antabuse)

  • Erythromycin

  • Fluconazole (Diflucan)

  • Influenza vaccine

  • Isoniazid (Nydrazid)

  • Itraconazole (Sporanox)

  • Lovastatin (Mevacor)

  • Metronidazole (Flagyl)

  • Miconazole (Monistat)

  • Nonsteroidal anti-inflammatory drugs

  • Norfloxacin (Noroxin)

  • Ofloxacin (Floxin)

  • Omeprazole (Prilosec)

  • Phenytoin (Dilantin)

  • Propafenone (Rythmol)

  • Propranolol (Inderal)

  • Propoxyphene (Darvon)

  • Quinidine

  • Salicylates

  • Tamoxifen (Nolvadex)

  • Tetracycline

  • Thyroxine

  • Trimethoprim/sulfamethoxazole (Bactrim, Septra)

Herbal products

  • Danshen

  • Devil's claw

  • Dong quai

  • Garlic

  • Ginkgo

  • Papain

  • Vitamin E

Drugs

  • Azathioprine (Imuran)

  • Barbiturates

  • Carbamazepine (Tegretol)

  • Cholestyramine (Questran)

  • Cyclosporine (Sandimmune)

  • Dicloxacillin (Dynapen)

  • Griseofulvin (Grisactin)

  • Nafcillin

  • Rifampin (Rifadin)

  • Sucralfate (Carafate)

  • Trazodone (Desyrel)

Foods

  • Avocados (large amounts)

  • Enteral feeds with high vitamin K content

  • Foods with high vitamin K content, such as broccoli, brussel sprouts, cabbage, collard greens, raw endive, kale, bib leaf and red leaf lettuce, mayonnaise, mustard greens, parsley, spinach, raw swiss chard, raw turnip greens, watercress

  • Green tea

Herbal products

  • Coenzyme Q10

  • Ginseng

  • St. John's wort