Pill Identification by Imprints: RX616 Home Pill Identification by Imprints: RX616 1 result DOXYCYCLINE MONO 100 MG CAP Side 1: RX616 Color: Blue Side 2: RX616 Shape: Oblong Other Popular Drug Imprint E550 AB1 M75 DAN 5783 368 A ms cor 139 M C4 UL250 ZC46 WRF 21/2 LAMICTAL EC-NAPROSYN I83 WPI 3660 S593 I61 GGN6 WATSON 800 PLIVA LCI 1338 logo and 202 ML 91 M 171 logo and 5033 DROXIA 6337 MP 447 DYN-065 277 M 543 S193 T26 BRISTOL 3030 TH1M O 1097 J 58 I 23 NL 680 MYLAN 148