• Low blood potassium , calcium and magnesium levels may be found but can generally be easily corrected and
  disappear after therapy.
• Lung scarring can occur when bleomycin is used, so pulmonary function tests are used to monitor any 
  change. If lung function decreases, the drug must be stopped. It is rarely fatal or produces symptoms with 
  present doses.
• There have been rare reports of heart attacks and high blood pressure with some older combinations, but the 
  newer regimens that are given for a much shorter time—only three to four months— should alleviate this 
  uncommon toxicity.
• The question of very delayed high blood pressure (hypertension) because of magnesium and renin imbalance 
  has not yet been resolved, so blood pressure should be monitored at each follow-up. Since one study noted an
  increase in serum cholesterol, a lipid profile should be checked yearly.
• Following some chemotherapy combinations, particularly PVB, there have been reports of a chronic vascular 
  disorder called Raynaud's phenomenon in 10 to 20 percent of cases. Again, this issue should be minimized 
  with newer combinations and a smaller total bleomycin dose.
• Sex drive (libido) is not changed by treatment and neither are erections. Chemotherapy may temporarily or 
  permanently decrease the sperm count. Male hormone replacement is needed in men having orchiectomy for 
  bilateral testicular cancers.