Mean NRS scores on the days before and after switching from loxoprofen to naproxen. The mean NRS scores before and after were 3.50±1.62 and 1.15±1.48 （p＜0.001, using the paired t-test）, respectively.
Mean NRS scores on the days before and after switching from loxoprofen to naproxen. The mean NRS scores before and after were 3.50±1.62 and 1.15±1.48 （p＜0.001, using the paired t-test）, respectively.