1. Diuretics - act to decrease total peripheral resistance by increasing formation and excretion of urine (sodium depletion, potassium depletion, orthostatic hypotension, weakness and fatigue)
2. Beta Blockers - decrease excitatory effects of catecholamines (epinepherine and norepinephrine). (Bronchoconstriction, orthostatic hypotension, depression, gastointestinal disturbances).
3. Vasodilators - decrease peripheral resistance (reflex tachycardia, dizziness, postural hypotension, weakness, fluide retention, and headaches).
4. Angiotensin-converting enzyme (ACE) inhibitors - If renin-angiotensin system is active it increases BP (skin rashes, persistant dry cough
5. Calcium Channel Blockers - reduce the amount of calcium in the vascular smooth muscles cells; reduce the force of heart contraction, promote vasodilation, and decrease vascular resistance.