Lysine for Management of Herpes Labialis

Frankie A. Tomblin, Jr., Pharm.D. and Kristy H. Lucas, Pharm.D.


Am J Health Syst Pharm. 2001;58(4) 

In This Article


Lysine is one of 10 essential amino acids required for human nutrition.[1] Dietary sources of lysine include meat, cheese, yogurt, brewer's yeast, legumes, and wheat germ.[2] This article examines the literature in an attempt to determine the validity of claims that lysine is effective in reducing the frequency, duration, and severity of outbreaks of herpes labialis (cold sores) in patients prone to frequent recurrences.


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