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 J64 AMBI 445 M D6 n 794 WATSON 861 G 1520 MG1 barr 200 mg b 12 W 1034 C 474 AAT 051 WW 458 LP332 AN 757 WPI 3771 K 6 GPI CL 76 L068 080 WPI 3631 SYPRINE AP211 O15 F23 barr SLC 221 FLAGYL HP 362 202 or 222 NP 14 Lilly 3234 US 12 I4 PD 532 E 262 E448 1069 logo