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What is the most important information I should know about lysine?

Lysine has not been approved by the FDA to treat any disease, and it should not be substituted for prescription medications.

Lysine has not been evaluated by the FDA for safety, effectiveness, or purity. All potential risks and/or advantages of this product may not be known. Additionally, there are no regulated manufacturing standards in place for these compounds. Some marketed herbal supplements have been found to be contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

What is lysine?

Lysine is an essential amino acid. Essential means that it is not produced by the body and therefore it must be taken in either by diet or by taking supplements. Lysine is found in foods such as yogurt, fish, cheese, brewer's yeast, wheat germ, pork, and other meats.

Lysine has been used to treat or prevent herpes infections (genital herpes and cold sores) and canker sores. It has also been used to treat symptoms of Bell's palsy, and to improve calcium use in the body.

Lysine has not been approved by the FDA to treat any disease, and it should not be substituted for prescription medications.

Lysine may also have uses other than those listed in this product guide.

What should I discuss with my healthcare provider before taking lysine?

Before taking lysine, talk to your doctor, pharmacist, herbalist, or other healthcare provider. You may not be able to use this product if you have liver or kidney disease, or certain other medical conditions or allergies. Do not take lysine without telling your doctor if you are pregnant or could become pregnant. It is not known whether lysine will be harmful to an unborn baby. Do not take lysine without telling your doctor if you are breast-feeding a baby. It is not known whether lysine will be harmful to a nursing infant.

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