Pill Identification by Imprints: 638 Home Pill Identification by Imprints: 638 3 results ALENDRONATE SODIUM 70 MG TAB Side 1: 638 Color: White Side 2: Shape: Round ALENDRONATE SODIUM 70 MG TAB Side 1: 638 Color: White Side 2: Shape: Round LAMOTRIGINE ER 250 MG TABLET Side 1: logo Color: Yellow Side 2: 638 Shape: Oblong Other Popular Drug Imprint GG C9 Pharmics 742 7 11 04 Ortho or Ortho 535 44 178 12 25 RG 54 715 E 5 3641 54 194 BRX 1 CNG1 NL 575 609 44 428 Fentanyl 100 mcg/hr NATCO PX C7 COUMADIN 2 PA1 MYLAN 5427 MACRODANTIN 25 mg 158 SC 800 I 17 V223 SC17 Black B 749 634 GG 606 RENAGEL 400 IX TRICARE DHA 401 559 logo and NS logo and 2838