Pill Identification by Imprints: RF 28 Home Pill Identification by Imprints: RF 28 2 results CHLOROQUINE PH 500 MG TABLET Side 1: RF 28 Color: White Side 2: Shape: Round CHLOROQUINE PH 500 MG TABLET Side 1: RF 28 Color: White Side 2: Shape: Round Other Popular Drug Imprint LCI 1340 S21 HYD 60 P51 D10 N S1 GX EF3 NL 276 2 54 F 73 USL 8 C P West-ward 473 W 921 2368 AN 513 44-542 259 or 310 E652 G352 L 40 A 32 L181 R207 C010 I31 NEXIUM 40mg Climara (estradiol) 0.075mg/day LL 254 Carnitor ST E 7 CPC 997 K 55 MACRODANTIN 100 mg 226 or 291 MF 2 R717 A 39 ROCHE BMS 300 MG