Pill Identification by Imprints: RE 21 Home Pill Identification by Imprints: RE 21 8 results ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round ATENOLOL 100 MG TABLET Side 1: RE 21 Color: White Side 2: Shape: Round Other Popular Drug Imprint 037 L133 F 2 ZL 1 C325 1000 CIPRO C 7 U28 O VH4 B 294 H22 SG 326 25 41 A511 447 TMC435 150 HMP TL 127 382 UPSHER-SMITH 0225 WC 730 L16 ZE 43 REBETOL dp G32 Prosteon G-X GX 623 CL 57 logo IDL 75 logo and LIBRAX ICN CT2 B192 650 93 3160 IBU200 M 84 AA1 TZ 1