Vitamin B9 (Folic Acid)   Uses of this Supplement Acne Cancer, Colorectal Cancer, Lung Candidiasis Cataracts Constipation Depression Osteoporosis Rheumatoid Arthritis Stroke   Supplements with Similar Uses View List by Use   Drugs that Interact Summary Methotrexate Tetracycline Tetracycline-containing Medications   Drugs that Deplete this Substance View List   Supplements with Similar Side Effects View List by Side Effect   Learn More About Nutrition	Look Up > Supplements > Vitamin B9 (Folic Acid) > Depletions Drugs that Deplete Vitamin B9 (Folic Acid) Anti-inflammatory Medications Nonsteroidal Anti-inflammatory Drugs (NSAIDs) Diclofenac Diflunisal Etodolac Fenoprofen Ibuprofen Indomethacin Ketoprofen Ketorolac Tromethamine Meclofenamate Nabumetone Naproxen Oxaprozin Piroxicam Sulindac Tolmetin Antibiotic Medications Antibiotic Combination: Sulfa Drugs Co-Trimoxazole Trimethoprim-Sulfamethoxazole Cephalosporin Antibiotics Cefprozil Cefuroxime Loracarbef Macrolide Antibiotics Azithromycin Clarithromycin Erythromycin, Systemic Penicillin Derivatives Amoxicillin Amoxicillin and Clavulanate Potassium Penicillin V Potassium Quinolone Antibiotics Cinoxacin Ciprofloxacin Enoxacin Gatifloxacin Levofloxacin Lomefloxacin Moxifloxacin Nalidixic Acid Norfloxacin Ofloxacin Sparfloxacin Trovafloxacin Tetracycline Derivatives Doxycycline Minocycline Tetracycline Anticonvulsant Medications Hydantoin Derivatives Phenytoin Valproic Acid Derivatives Divalproex Sodium Valproic Acid and Derivatives Antidiabetic Medications Biguanide Agent Metformin Corticosteroids Inhalant, Systemic, and Topical Preparations Beclomethasone Budesonide Dexamethasone Fluticasone Hydrocortisone Methylprednisolone Mometasone Furoate Prednisone Triamcinolone Gastrointestinal Medications Histamine H2 Antagonists Cimetidine Famotidine Nizatidine Ranitidine Bismuth Citrate Ranitidine Hydrochloride Oral Contraceptives Monophasic, Biphasic, and Triphasic Preparations Ethinyl Estradiol and Desogestrel Ethinyl Estradiol and Levonorgestrel Ethinyl Estradiol and Norethindrone Ethinyl Estradiol and Norgestimate