Pill Identification by Imprints: 5131 Home Pill Identification by Imprints: 5131 2 results PRIMIDONE 250 MG TABLET Side 1: V Color: Yellow Side 2: 5131 Shape: Round PRIMIDONE 250 MG TABLET Side 1: V Color: Yellow Side 2: 5131 Shape: Round Other Popular Drug Imprint APTALIS 20 SD 9 K 26 E43 cpc2859 E 70 MONODOX 100 L41 1300 30 WW 948 R789 R 200 583 HP 26 44-518 NEORAL 100mg 750 Nitroglycerin 0.6 mg/hr M 31 402 OMJ 150 MACRODANTIN 50 mg ERTH M L21 54 656 RX 773 459 logo and 2407 4 05 W964 EVT A333 CPC 76 UCB 500XR ZOCOR MYLAN 551 D2/500 GG 335 b 94