Beta Blockersheadache, depression, confusion, dizziness, nightmares, and hallucinations. Beta blockers that block β2 receptors may cause shortness of breath inasthmatics. As with other drugs used for treating high blood pressure, sexual dysfunctionmay occur. Beta blockers may cause low or high blood glucose and mask the symptoms of low blood glucose (hypoglycemia) in diabetic patients.
diarrhea, stomach cramps, nausea,and vomiting. Rash, blurred vision, muscle cramps, and fatigue may also occur.
Calcium Channel Blockers The most common side effects of CCBs are constipation, nausea, headache,rash, edema (swelling of the legs with fluid), low blood pressure, drowsiness, and dizziness. Liver dysfunction and over growth of gums may also occur. When diltiazem (Cardizem) or verapamil (Calan, Isoptin) are given to individuals with heart failure, symptoms of heart failure may worsen because these drugs reduce the ability of the heart to pump blood. Like other blood pressure medications, CCBs are associated with sexual dysfunction.