Pill Identification by Imprints: M 13 Home Pill Identification by Imprints: M 13 2 results TOLBUTAMIDE 500 MG TABLET Side 1: M 13 Color: White Side 2: Shape: Round TOLBUTAMIDE 500 MG TABLET Side 1: M 13 Color: White Side 2: Shape: Round Other Popular Drug Imprint MYLAN 1258 T33 44 438 242 54 013 alza 27 MUTUAL 401 5266 5 14 384 PLIVA 333 0384 40 mg L 5 Y03 2 or 4 NAT ACIPHEX 20 5225 V357 267/25 EP or E 1137 D 5 M PD1 RX 504 GG 771 T1 75 SP/3 Estradiol 0.075mg/day (Once Weekly) SB R150 MP 445 LB2 AA 15 WW 172 DG1 SV 572 H118 GG 606 L190