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	| Interactions: |  Allopurinol 
Adverse Effect: hypersensitivity reactions (Stevens-Johnson syndrome, skin eruptions)     Clinical Management: If these drugs are used concurrently, monitor for hypersensitivity reactions. 
Amiloride 
Adverse Effect: hyperkalemia     Clinical Management: Although such increases are usually transient, monitor serum potassium levels for persistent elevations in patients on this combination, especially in patients with renal dysfunction or diabetes and the elderly. Severe arrhythmias and death have been reported from hyperkalemia with such combinations. 
Aspirin 
Adverse Effect: decreased benazepril effectiveness     Clinical Management: Although studies have suggested an interaction between Benazepril and aspirin, the clinician should weigh the benefits against the risks of combining these two agents. 
Bumetanide 
Adverse Effect: postural hypotension (first dose)     Clinical Management: Start with a very low dose of the Benazepril in the evening and closely monitor blood pressure for a severe hypotensive response for four hours after the initial dose. Monitor for hypotension, fluid status, and body weight regularly for up to two weeks after dose adjustments. 
Celecoxib 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Chlorthalidone 
Adverse Effect: postural hypotension (first dose)     Clinical Management: Start with a very low dose of the Benazepril in evening and closely monitor blood pressure for a severe hypotensive response for four hours after the initial dose. Monitor for hypotension, fluid status, and body weight regularly for up to two weeks after dose adjustments. 
Clopamide 
Adverse Effect: postural hypotension (first dose)     Clinical Management: Start with a very low dose of Benazepril in the evening and closely monitor blood pressure for a severe hypotensive response for four hours after the initial dose. Monitor for hypotension, fluid status, and body weight regularly for up to two weeks after dose adjustments. 
Diclofenac Preps. 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Erythropoietin 
Adverse Effect: higher maintenance doses of erythropoietin to maintain the target hematocrit     Clinical Management: Monitor patients receiving Benazepril for erythropoietin efficacy. When given concomitantly, doses of erythropoietin may be higher than expected. 
Flurbiprofen 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Frusemide 
Adverse Effect: postural hypotension (first dose)     Clinical Management: Start with a very low dose of the Benazepril in the evening and closely monitor blood pressure for a severe hypotensive response for four hours after the initial dose. Monitor for hypotension, fluid status, and body weight regularly for up to two weeks after dose adjustments. 
Ibuprofen 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Indapamide 
Adverse Effect: postural hypotension (first dose)     Clinical Management: Start with a very low dose of the Benazepril in the evening and closely monitor blood pressure for a severe hypotensive response for four hours after the initial dose. Monitor for hypotension, fluid status, and body weight regularly for up to two weeks after dose adjustments. 
Indomethacin 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Ketoprofen 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Ketorolac 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Lithium 
Adverse Effect: Lithium toxicity (weakness, tremor, excessive thirst, confusion) and/or nephrotoxicity     Clinical Management: The combination of lithium and Benazepril should be avoided if possible, though the choice of an alternative antihypertensive agent that does not interact with lithium is limited. If lithium and Benazepril are used concurrently, serum lithium levels should be closely monitored and the patient followed up for any symptoms of lithium toxicity. 
Mefenamic Acid 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Meloxicam 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Nabumetone 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Naproxen 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Nimesulide 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Oxyphenbutazone 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Paracetamol 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Phenacetin 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Phenylbutazone 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Piroxicam 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Rofecoxib 
Adverse Effect: Increase in mean arterial pressure     # Clinical Management: Monitor for the increase in arterial pressure and adjust the dose accordingly when ACE inhibitors like Benazepril and Rofecoxib are administered together. 
Spironolactone 
Adverse Effect: hyperkalemia     Clinical Management: Although such increases are usually transient, monitor serum potassium levels for persistent elevations in patients on this combination, especially in patients with renal dysfunction or diabetes and the elderly. Severe arrhythmias and death have been reported from hyperkalemia with such combinations. 
Tenoxicam 
Adverse Effect: Decreased antihypertensive and natriuretic effects     Clinical Management: Caution should be used if a nonsteroidal antiinflammatory agent (NSAID) is to be coadministered with an angiotensin converting enzyme (ACE) inhibitor, especially in patients predisposed to or with preexisting nephropathy. Monitor blood pressure and cardiovascular function for a reduction in the efficacy of the ACE inhibitor. Also monitor patient for hyperkalemia or acute renal failure. 
Xipamide 
Adverse Effect: postural hypotension (first dose)     Clinical Management: Start with a very low dose of the Benazepril in the evening and closely monitor blood pressure for a severe hypotensive response for four hours after the initial dose. Monitor for hypotension, fluid status, and body weight regularly for up to two weeks after dose adjustments.  |  
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