Vitamin B6 (Pyridoxine)   Uses of this Supplement Premenstrual Syndrome (PMS)   Supplements with Similar Uses View List by Use   Drugs that Interact Summary Cycloserine Fluorouracil Hydralazine Hydralazine-containing Medications Isoniazid Levodopa Levodopa-containing Medications Monoamine Oxidase Inhibitors (MAOIs) Nortriptyline Oral Contraceptives Penicillamine Phenobarbital Phenobarbital-containing Medications Phenytoin Phenytoin-containing Medications Tetracycline Tetracycline-containing Medications Theophylline Theophylline-containing Medications Tricyclic Antidepressants (TCAs)   Drugs that Deplete this Substance View List   Supplements with Similar Side Effects View List by Side Effect   Supplements with Similar Warnings View List by Warning   Learn More About Nutrition	Look Up > Supplements > Vitamin B6 (Pyridoxine) > Warnings Supplements with Similar Warnings as Vitamin B6 (Pyridoxine) Below is a list of conditions where patients are warned against taking this supplement. Under each condition is listed other supplements with similar warnings.   nausea Copper pregnancy Bromelain Cartilage Docosahexaenoic Acid (DHA) Eicosapentaenoic Acid (EPA) Melatonin Phenylalanine S-Adenosylmethionine (SAMe) Sulfur Vitamin A (Retinol) Vitamin C (Ascorbic Acid) Vitamin K toxicity Chromium Copper Manganese Selenium Vitamin A (Retinol) Vitamin B3 (Niacin) Vitamin E vomiting Copper