Bacteria: antibiotics are made from bacteria. Some antibiotics even use bacteria that originally came from the soil. Also vaccines are made by manipulated bacteria. Also the use of plasmids from bacteria can be the mode of transportation for recombinant DNA.
Fungi: Penicillin is made from a fungus, Penicillium chrysogenum. Cyclosporin A which is used during bone marrow transplants originates from Trichonderma polysporum and Cylindrocarpon lucidum.
Plants: Cannabis is used for the treatment glaucoma. The plant khella is also used in many medications to help relieve breathing problems and increase blood flow in the heart.