Pill Identification by Imprints: 31 90 Home Pill Identification by Imprints: 31 90 2 results METAXALONE 800 MG TABLET Side 1: 31 90 Color: White Side 2: WPI Shape: Oblong METAXALONE 800 MG TABLET Side 1: 31 90 Color: White Side 2: WPI Shape: Oblong Other Popular Drug Imprint 575 577 KC 10 OTSUKA 30 BENTYL 10 L272 T558 cor 224 93 5513 B 586 or B 587 301 V222 292 270 516 SZ 76 ANI 511 T600 logo and 658 K 7 PX TL 127 RX 791 G 3718 ZA21 NORPRAMIN 25 58 77 WATSON 383 or WATSON 286 ANAFRANIL 50 mg 952 PFIZER 397 PLIVA 467 HYD 80 DAN 5561 P U logo and 81 G 423 NT 16 2L