<unk>  is a antirheumatic, gold compound and musculoskeletal agent that is FDA approved for the treatment of adults with active classical or definite rheumatoid arthritis. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include pruritus, rash, diarrhea, indigestion, loss of appetite, nausea, stomatitis, conjunctivitis, proteinuria.
Auranofin
Peruvoside
Propamidine
Troxerutin
Rifabutin
Pentamidine 
Foscarnet sodium
Quarantine