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.
Your testicles produce sperm and the hormone testosterone. In testicular cancer, cells in one of your testicles start to grow abnormally and out of control. Testicular cancer can sometimes spread to your lymph nodes in your abdomen (tummy) or more rarely, to other organs through your bloodstream or lymph system.y far the most common symptom of testicular cancer is a swelling or a hard lump on your testicle. This is usually painless. Other symptoms can include: 1  a pulling sensation or heavy feeling in your scrotum. 2  a dull ache in your groin or lower abdomen. 3  pain or discomfort in your testicle or scrotum.