Psyllium   Uses of this Supplement Constipation Diarrhea Hemorrhoids Hypercholesterolemia Irritable Bowel Syndrome   Supplements with Similar Uses View List by Use   Drugs that Interact Summary Carbamazepine Cholestyramine Resin Colestipol Lithium   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 > Psyllium > SideEffects Supplements with Similar Side Effects as Psyllium Below is a list of side effects for this supplement along with supplements with similar side effects.   allergy Sulfur Vitamin B1 (Thiamine) Vitamin B9 (Folic Acid)