Pill Identification by Imprints: HP 18 Home Pill Identification by Imprints: HP 18 2 results TETRACYCLINE 500 MG CAPSULE Side 1: HP 18 Color: Yellow Side 2: HP 18 Shape: Oblong TETRACYCLINE 500 MG CAPSULE Side 1: HP 18 Color: Yellow Side 2: HP 18 Shape: Oblong Other Popular Drug Imprint logo and TD A 325 44 542 P 054 NL 792 RX 537 54 293 CPC 339 ZC46 BAYER BAYER T1 150 CYP 160 GG 331 F 77 N 82 ADVIL COLD & SINUS P24HR AA 16 MYLAN G1 L467 BTG R 5 SZ Z7 M150 ZE 71 M L53 TZD ZGNX 40 mg 54 793 H 603 GG 824 WATSON 404 TI ZOCOR 5271 93 LK100 E50 GS MZ1 Centrix 133 TCL 370