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 > SideEffects Supplements with Similar Side Effects as Iron Below is a list of side effects for this supplement along with supplements with similar side effects.   constipation Calcium death Calcium Ethylenediaminetetraacetic Acid (EDTA) Potassium diarrhea Bromelain Carnitine (L-Carnitine) Copper Cysteine Glucosamine Phosphorus Potassium Vitamin A (Retinol) Vitamin B3 (Niacin) Vitamin C (Ascorbic Acid) Vitamin D Vitamin E fever Sulfur gastrointestinal discomfort 5-Hydroxytryptophan (5-HTP) Copper Creatine Lactobacillus Acidophilus Sulfur Tyrosine Vanadium Vitamin B1 (Thiamine) Vitamin B9 (Folic Acid) Zinc headaches Phenylalanine Sulfur Vitamin A (Retinol) Zinc heartburn 5-Hydroxytryptophan (5-HTP) Vitamin B3 (Niacin) nausea 5-Hydroxytryptophan (5-HTP) Bromelain Calcium Cartilage Cysteine Magnesium Potassium S-Adenosylmethionine (SAMe) Vitamin A (Retinol) Vitamin B3 (Niacin) Vitamin E organ damage Ethylenediaminetetraacetic Acid (EDTA) pain, joint Vitamin A (Retinol) toxicity Cysteine Iodine Manganese Selenium Vitamin A (Retinol) Vitamin D