Pill Identification by Imprints: NL 571 Home Pill Identification by Imprints: NL 571 1 result METHYLPHENIDATE 5 MG CHEW TAB Side 1: NL 571 Color: White Side 2: Shape: Round Other Popular Drug Imprint b ANI 230 670 FENTANYL 50mcg/hr M E18 U PAL 3 WATSON 151 44 226 GS XJG 233 and logo M C28 U36 B 50 554 NPR LE 500 logo 636 CAR/RX 21 7 MPC TCL 011 K 9 M RE4 M605 YB L898 104 K 23 MYLAN 3402 3169 logo and 2839 66 logo TENCON A34 20700UL P30 A 50 AN 572 CIS 28