Age 18-75 years, inclusive.

Subject has a Body Mass Index (BMI) between 20 and 32, inclusive.

Normal physical examination as determined by the Investigator.

Normal clinical laboratory test results or clinically insignificant results as determined by the Investigator during the screening visit.

If female and of child-bearing potential, the subject must have a negative pregnancy test and is not nursing.

If female and of child-bearing potential, the subject must agree to use adequate birth control for the duration of the study.

Oral Bioequivalence Study of PL 3100 and Naproxen in Healthy Adults