Iron   Drugs that Interact Summary Angiotensin-Converting Enzyme (ACE) Inhibitors Carbidopa Carbidopa-containing Medications Cholestyramine Resin Cimetidine Colestipol Levodopa Levodopa-containing Medications Levothyroxine Oral Contraceptives Quinolone Antibiotics Tetracycline Derivatives Tetracycline-containing Medications   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 > Iron > Warnings Supplements with Similar Warnings as Iron Below is a list of conditions where patients are warned against taking this supplement. Under each condition is listed other supplements with similar warnings.   anaphylactic reaction Cysteine children, not for Cartilage Copper Docosahexaenoic Acid (DHA) Eicosapentaenoic Acid (EPA) Psyllium S-Adenosylmethionine (SAMe) Vitamin A (Retinol)