Pill Identification by Imprints: AN 322 Home Pill Identification by Imprints: AN 322 1 result NIACIN ER 750 MG TABLET Side 1: AN 322 Color: Light Brown Side 2: Shape: Oblong Other Popular Drug Imprint K 77 4890 WPI 3385 1140 784 US 10 G 171 V400 CH E 71 93 2929 2064 V A20 RF 27 MYLAN 2537 OS 211 MP 303 MS AAA 1031 MYLAN 6440 SD 6 West-ward 202 1200 P10 O WATSON 444 736 SYNTHROID logo and 160 501 1313 AR 60 RX 554 P F 660 OMJ 200 CL50 M RN1 EK 25 n 353 logo and 103