over 100,000
More than 50 chemotherapy drugs are currently available to treat cancer and many more are being tested for their ability to destroy cancer cells.
Way too many to name.
The number of drugs in the world is enormous and continuously in change; any person know the exact number. For the classes of pharmaceutical drugs see the link bellow.
Anything you can buy without a prescription. These can include cough medicines, aspirin, ibuprofen, tylenol, sore throat medicine, ect.