Pill Identification by Imprints: HP66 Home Pill Identification by Imprints: HP66 1 result METRONIDAZOLE 375 MG CAPSULE Side 1: HP66 Color: Yellow Side 2: A Shape: Oblong Other Popular Drug Imprint L190 P-1 N T4 MYLAN 4070 CR 500 Macuvex M 573 315 AP211 44-455 17 logo and 404 RIBAVIRIN 200MG A/P 25 / 15 H 604 M164 logo 636 44 111 WATSON 407 PH 033 C325 1000 EP 25 DILANTIN SANDOZ 620 RI19 54 931 STO 75 E 25 E150 AN057 54 357 GX CT1 AHI 44-389 GAVISCON 1175 Y04 BY2 Q400 RX 504 44 334