Pill Identification by Imprints: N T4 Home Pill Identification by Imprints: N T4 1 result THEOPHYLLINE ER 400 MG TABLET Side 1: N T4 Color: White Side 2: Shape: Round Other Popular Drug Imprint G&W 0555 Alavert VRX 7033 HP66 PH 020 MYLAN 5750 227 or 292 3.5 3QD A21 OMEPRAZOLE 40 mg MO1 7U0 C47 STO 100 DANTRIUM 50mg TV U2 UPSHER-SMITH 0085 57 71 f100 LCI 1383 Pfizer HP 229 FEL 400 J 247 CL55 AN 545 BMS 140 MYLAN 183 257 106 E 707 A 40 ZBO W 150 logo and 661 GS XJG P95 GSK