Hydroquinone is a skin whitening agent.

Sitagliptin and its salts are DPP-4 inhibitors used for diabetes.

Ferric Ferrocyanide is an inorganic compound (used as pigment or contrast agent).

Ferrous Citrate is an iron supplement.

Ferrous Fumarate is an iron supplement.

Cholestyramine Resin is a lipid-lowering agent.

Simeprevir Sodium is an HCV protease inhibitor.

Macitentan is used for pulmonary arterial hypertension.

Auranofin is an antirheumatic drug used for rheumatoid arthritis.