Calcium channel blocker benefit and side effects for high blood pressure, danger and risk
June 22 2016

Calcium channel blockers are medications that decrease the heart's pumping strength and relax blood vessels. These drugs are used to treat high blood pressure, angina (chest pain) and some arrhythmias (heart palpitations). They're usually not prescribed for people with heart failure or those who have structural damage to the heart.

CCB drugs include:

Dancer, risk, side effects
Calcium channel blockers (CCBs), which are commonly prescribed for hypertension, arrhythmia and angina. Patients on calcium channel blockers who are given the antibiotics erythromycin (brands like E-Mycin) or clarithromycin (Biaxin) are at increased risk of being hospitalized for dangerously low blood pressure.

Women taking this common type of blood pressure drug for a decade or more are more likely to be diagnosed with breast cancer as those not on the medication. JAMA Internal Medicine, online August 5, 2013.

Drugs Aging. 2015. Chronic Pruritus in the Elderly: Pathophysiology, Diagnosis and Management. Chronic itch in the elderly is a common problem, with a significant impact on quality of life and sleep in elderly patients. Chronic itch may be attributable to several causes, including dry skin, immunosenescence and neural degeneration. Itch may also be caused by skin diseases, such as seborrhoeic dermatitis and stasis dermatitis; systemic conditions, such as end-stage renal disease and diabetes; and psychogenic conditions, such as depression and anxiety. The use of polypharmacy may also cause itch, with or without a rash. Specifically, thiazides and calcium channel blockers have been known to cause itch in elderly patients.

Herbal alternative
Are there any herbs that act as calcium channel blockers? If there are please send information about use and precautions.
   As of 2015 I am not aware of any.