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.
Typically, men with testicular cancer experience a painless lump as one of the initial symptoms of the disease. Not to say that testicular lumps related to testicular cancer can't be painfulâit's just much less common. A painless lump on the testicle can also be related to more common conditions, such as: