Pill Identification by Imprints: P F Home Pill Identification by Imprints: P F 2 results THEOPHYLLINE ER 400 MG TABLET Side 1: U 400 Color: White Side 2: P F Shape: Round THEOPHYLLINE ER 600 MG TABLET Side 1: P F Color: White Side 2: U 600 Shape: Rectangular Other Popular Drug Imprint GDC V 3 SS-2 AR 50 CLARITIN D Lilly 3234 44 113 K2 SB 4140 54 552 LZD 54 591 UPSHER-SMITH 0230 logo and 174 AN34 MP 71 E P BP G 021 e5 111 E 2 K 77 54 628 A257 ZC 26 WATSON or WATSON 075 Lilly 3227 LU LU ANI 230 logo and 530 54 343 LL 253 V42 A534 NPR EC 500 0.5MG ZA-12 R 10 Kaopectate 812