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 Watson 369 HP 145 L212 LH1 Nitroglycerin 0.6 mg/hr G1 233 1000 ZF 43 APTALIS 10 M 228 CP 50 AN901 20 1161 441 ML 33 ZA-43 EV0204 Y03 1118 200 or 400 9 2 5 XL E 7 44-526 M F6 E 117 AZ 217 S 39 1313 AN 755 logo and 115 2122 M 23 517 WATSON 932 cor 225 T33 TCL083 B4