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stomach pain and diarrhea.
Special Precautions & Warnings:Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking lysine if you are pregnant or breast feeding. Stay on the safe side and avoid use.
Kidney disease: There is one report of kidney disease linked with taking lysine supplements. If you have a kidney disease, check with your healthcare provider before taking lysine.
Osteoporosis: Using Lysine with calcium supplements might increase calcium absorption.
Intolerance to lysinuric protein: Lysine supplementation might cause diarrhea and stomach cramps in children who are intolerant to lysinuric protein.
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.