ACE and Renal insufficiency: Diuretics, beta-blockers, alpha-adrenergic inhibitors, angiotensin converting enzyme (ACE) inhibitors, vasodilators, angiotensin receptor (ARB) II blockers and calcium-channel antagonists are among the common drugs which are used for the treatment of hypertension and are associated with some complications such as headache, dizziness, heart and/or renal failure (1-8).