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.
Testicular cancer symptoms. Common signs of testicular cancer include: 1  Hard lumps or nodules on either testicle or a change in how the testicle looks or feels. 2  Swelling in the scrotum, sometimes caused by a sudden build-up of fluid.3  A dull ache in the lower abdomen or the scrotum. 4  Pain, discomfort or a feeling of heaviness in the scrotum.ommon signs of testicular cancer include: 1  Hard lumps or nodules on either testicle or a change in how the testicle looks or feels. 2  Swelling in the scrotum, sometimes caused by a sudden build-up of fluid.