Pill Identification by Imprints: Z320 20 mg Home Pill Identification by Imprints: Z320 20 mg 1 result ZOHYDRO ER 20 MG CAPSULE Side 1: Z320 20 mg Color: Light Green Side 2: Shape: Oblong Other Popular Drug Imprint NL C 54 722 268/40 7365 T V ORN 57 K 77 3171 V GX CM3 BY4 POT 40 GG 532 M MC2 W121 L180 85 X 292 or 293 L131 Nitroglycerin 0.4 mg/hr GG 58 CTI 142 2776 A511 45 1181 logo and F-C K1 DB02 R575 TMC125 2683 KU 262 I-Caps PZ 180 MCR 105 2858 10 or 20 M 23 37-4401