Pill Identification by Imprints: E4 Home Pill Identification by Imprints: E4 2 results BELBUCA 450 MCG FILM Side 1: E4 Color: Yellow Side 2: Shape: Rectangular (Rounded End) BELBUCA 450 MCG FILM Side 1: E4 Color: Yellow Side 2: Shape: Rectangular (Rounded End) Other Popular Drug Imprint Targretin MP 89 WPI 3659 TL574 J 58 MP 513 IP 189 W 921 L127 GAL 8 44 403 M202 Nitroglycerin 0.4 mg/hr APO ZIP FAM500 AA 16 REGLAN N635 GG 336 M211 C 1 M U13 West-ward 290 N 598 P 984 C74 ALAVEN 58 75 S405 750 NxFE RX 505 54 582 5411 N 136 PREMPRO 0.45/1.5 5410 P 3 T 21 40 APR