Found pill, small, blue, round with L490 printed on one side. What is it?
This pill is NAPROXEN SODIUM 220 MG
a generic version of Aleve
Imprint Code L490
Description light blue, round tablet
Info at https://www.drugs.com/MTM/naproxen.html
Naproxen Sodium Tablets
Looks like you found an Aleve Cold and Sinus Pill.