The definition of Calcium channel blockers

Group of vasodilating medicines licensed for the treatment of systemic hypertension (high blood pressure). A limited proportion of patients with pulmonary arterial hypertension (PAH) respond to calcium channel blockers.

Please refer to How is PAH treated  where this term is mentioned.

If you are a patient and you have any questions about these definitions or how they apply to you, please contact your healthcare provider.