Pill Identification by Imprints: KEFLEX 500 mg Home Pill Identification by Imprints: KEFLEX 500 mg 1 result KEFLEX 500 MG CAPSULE Side 1: KEFLEX 500 mg Color: Light Green Side 2: Shape: Oblong Other Popular Drug Imprint A257 MYLAN 3404 EP 340 M 243 PFIZER 396 BP 321 L 2 I-2 logo and 4960 N 4 AN 512 1300 N26 ASPIRIN MYLAN TM 100 44 403 SG 320 ZOVIRAX BP 649 U39 CL17 1070 10 A 43 logo and S10 1000 M 979 MP 445 C3 or P V30 V201 440 RE 79 WPI 867 1 GN CARDURA par 209 WPI 1118 logo and 5313 MERRELL 277 GLYNASE 1.5