Pill Identification by Imprints: 521 Home Pill Identification by Imprints: 521 1 result SINEMET CR 50-200 TABLET Side 1: 521 Color: Purple Side 2: Shape: Oval Other Popular Drug Imprint L122 EV0077 E42 J 247 M450 logo and 4364 RD 71 TMZ HP RSV 5 4943 0.5MG VS 80 U38 54 006 NORPRAMIN 25 GSI500 VALTREX 1 gram 54 177 Phillips' AP 84 NL 770 VP and logo 1180 KPI 117 RX616 54 299 GG C6 Durlaza logo and Zenith 100 mg novo 278 Z16 IP 54 P 075 SZ 249 L485 MX 23 CTI 141 ZC 76 logo 150