Pill Identification by Imprints: R31 Home Pill Identification by Imprints: R31 1 result MEFENAMIC ACID 250 MG CAPSULE Side 1: LU Color: Ivory Side 2: R31 Shape: Oblong Other Popular Drug Imprint #L 001 LCI 1338 4994 logo and 335 HAW 100 M378 GG 108 M 060 WP 5901 2632 AK 60 Tiazac 300 C533 LH1 A-17.5 mg APO 200 K 57 P211 4941 E550 logo 272 RH37 GS FH2 WPI 3660 G-X AA 70 TL521 53 PZ 250 BP 607 PLIVA 334 G 1540 1138 LIDOCAINE PATCH 5% 229 or 230 logo and 0303 E 137 ZD 16 RE 76 A 151