Antihypertensives are generally classified as follows:
· Centrally acting agents
· Ganglionic blocking agents.
· Adrenergic neuron blocking agents
· Beta adrenergic antagonists (Beta blockers)
· Alpha adrenergic antagonists (Alpha blockers).
· Arterial and venous
Calcium channel blockers
Angiotensin converting enzyme inhibitors
Angiotensin II receptor antagonists.
Diuretics have already been discussed in the foregoing sections.