Creatine   Supplements with Similar Uses View List by Use   Drugs that Interact Summary Central Nervous System Stimulants   Supplements with Similar Side Effects View List by Side Effect   Learn More About Nutrition	Look Up > Supplements > Creatine > SideEffects Supplements with Similar Side Effects as Creatine Below is a list of side effects for this supplement along with supplements with similar side effects.   gastrointestinal discomfort 5-Hydroxytryptophan (5-HTP) Copper Iron Lactobacillus Acidophilus Sulfur Tyrosine Vanadium Vitamin B1 (Thiamine) Vitamin B9 (Folic Acid) Zinc kidney damage Calcium Ethylenediaminetetraacetic Acid (EDTA) liver damage Vitamin B3 (Niacin) Vitamin K