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nausea, diarrhea, bloating, fatigue, headache, insomnia, itching, or worsening of allergy symptoms.
Special Precautions & Warnings:Pregnancy and breast-feeding: Not enough is known about the safety of using MSM during pregnancy and breast-feeding. Stay on the safe side and avoid use.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.