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 A332 MENTHOL V259 G 21 logo 673 MYLAN FE 134 n 352 H569 logo and 3 CORTEF 10 ZF 15 3 1 755 Respa HP45 C 474 G 12 MYLAN 3075 NL TL 002 AZ 010 GG 26 TYLENOL CR 500 52H 52H APTENSIO XR GG D8 EP 340 IG272 E 104 Caltrate 161 CA A029 WATSON 460 C4 or C2 KC M10 EL601 ER 553