Medicines may be used to control the growth of bladder cancer cells and to relieve symptoms. These medicines may be taken by mouth, injected into a vein (intravenous, or IV), or delivered directly into the bladder using a catheter.
Side effects of immunotherapy vary depending on the medicine. Bacillus Calmette-Guerin (BCG) is a type of bacteria related to the bacteria that cause tuberculosis (TB). BCG is used in TB vaccines. Also, BCG is placed into the bladder to treat bladder cancer. With BCG, the side effects may include: