Try it what kind of pill is blue and has G4900 on one side and 50 mg on the other side

Not Medical Advice: An elliptical shaped blue pill with the imprint G 4900 on the front, & 50 MG on the back is 50mg of Sertraline hydrochloride (made by Greenstone Limited). Sertraline hydrochloride is a selective serotonin reuptake inhibitor that is used to treat anxiety & stress, OCD, panic disorder, and depression, among other illnesses. There is a low risk of abuse with this drug. This prescription-only medication may pose a risk to an unborn fetus, and should be used only under a doctor's supervision.
Updated on Thursday, February 02 2012 at 03:38AM EST