Pill Identification by Imprints: N400 Home Pill Identification by Imprints: N400 1 result NEVIRAPINE ER 400 MG TABLET Side 1: M Color: White Side 2: N400 Shape: Oval Other Popular Drug Imprint ARI 15 593 U-S 42 AD U U MARGESIC 54 661 C25 54 760 GG 461 IL 3583 P 450 C 93 US ProV M 1 Pfizer E652 VIP 107 RPC 053 ALKA SELTZER EX S EV 0079 A08 S591 GG 258 L490 AX7 logo and 3090 RF 28 AA 14 n 352 E7 RIC or FV DAN 5554 FPI A272 Andrx 700 ARI 20 TCL 370 MCR 109 PD 223