capsule 2 bluegreen capsule rx 682 ## I located a match to RX 682, but it's brown and yellow, it's Nalfon 300 mg. I also located a green capsule that has RX 686 on it, could this be your pill? If so it's Fluoxetine 10 mg, which is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class. To learn more click on the link below... Do you have any more questions or information to add? Please post back if you do.