Pill Identification by Imprints: HP 63 Home Pill Identification by Imprints: HP 63 1 result THEOPHYLLINE ER 450 MG TAB Side 1: HP 63 Color: White Side 2: Shape: Oblong Other Popular Drug Imprint 689 97 Y+ or M+ HP532 MP 47 I73 ED PSE RSV 20 M2A3 57344 93 5292 A223 GG 518 MAXIPHEN DM S 571 G 55 44 386 logo and 53 21 7 7154 MYLAN 148 44 438 barr 5 mg 111 M 120 E 415 par 029 Fentanyl 25 mcg/hr BCI FLZ 100 I61 93 2264 N Z 66 AN 545 O20 RE 21 2631 292 TL 384 AS 400