The Sponsor is developing a new form of naproxen (the study drug, OXP005), for the potential
treatment of rheumatic and painful conditions. The study will compare the study drug to an
already marketed formulation of prescription strength naproxen (Naprosyn® the reference
product) by looking at how a single dose of the drug is taken up by the body. The safety and
tolerability of the drug will also be assessed.