12.5 mg/500 mg FC tab (pale brownish purple, oval, biconvex, debossed with "S12" and the Boehringer Ingelheim logo on one side and "500" on the other side) 6 x 10's. 12.5 mg/1,000 mg FC tab (dark brownish purple, oval, biconvex, debossed with "S12" and the Boehringer Ingelheim logo on one side and "1000" on the other side) 6 x 10's.