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 A 49 K 13 TI 100 GM 2 CCC 500 N 941 241 1 MYLAN PR60 W W C 1 M 32 G 343 LES200 GC5 447 EGLT 30 HP 66 93 3193 C 74 logo YE O23 L189 54 142 KPI 284 PREMPRO 0.625/2.5 TL606 B 312 L012 M RN 1118 CL48 WATSON 528 GS TEW 50 mg MYLAN 351 L113 C 735 S 226 ZESTRIL 40 PAD 0115 VIVUS