This is what I found...
Imprint Code: GGL7
Drug/Strength/Manufacturer:
Atenolol 25mg - Haines - Vangand
Description: GG L7 - Tablet
Imprint Code: GGL7
Drug/Strength/Manufacturer: Atenolol 25mg - Duramed
Description: White - Round - Tablet
Imprint Code: GGL7
Drug/Strength/Manufacturer: Atenolol 25mg - Allscripts - Golden State - Zenith Goldline
Description: Tablet