A: Metoprolol belongs to a class of medications called beta blockers, which are used to treat high blood pressure, angina, and congestive heart failure. The most common side effects are dizziness, lightheadedness, or slow heart rate.
Other symptoms of testicular cancer may include: 1  Testicular pain. 2  A sudden gathering of fluid in the scrotum. 3  An abdominal mass or abdominal pain.  Loss of weight or appetite; fatigue; lower- back pain; chest lumps, breathlessness and 1  cough. Infertility.
Symptoms of advanced testicular cancer. Testicular cancer that has spread (metastasized) beyond the testicles and regional lymph nodes to other organs may cause other symptoms depending on the area of the body affected. Symptoms of late-stage testicular cancer may include: Dull pain in the lower back and belly.