Does amlodipine cause kidney damage
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Amlodipine and Kidney Damage: A Comprehensive Review
Introduction to Amlodipine and Kidney Health
Amlodipine, a dihydropyridine calcium channel blocker, is widely used to manage hypertension and angina. Given its extensive use, understanding its impact on kidney health is crucial, especially since the kidneys are vital organs susceptible to damage from various medications.
Protective Effects of Amlodipine on Kidneys
Renal Protection in Diabetic and Hypertensive Models
Several studies have demonstrated the protective effects of amlodipine on renal function. In diabetic rat models, amlodipine was shown to reduce renal apoptosis, improve creatinine clearance, and decrease urine albumin excretion, indicating a protective effect against diabetic nephropathy . Similarly, in hypertensive rat models, amlodipine reduced systolic blood pressure, urinary protein excretion, and renal histological damage, suggesting it can mitigate hypertensive renal injury Kanno1994Saruta1995.
Comparison with Other Antihypertensive Agents
Amlodipine's renal protective effects have been compared with those of angiotensin-converting enzyme (ACE) inhibitors. Studies indicate that while both amlodipine and ACE inhibitors reduce blood pressure and protect renal function, their mechanisms differ. Amlodipine does not significantly dilate the efferent arteriole, unlike ACE inhibitors, but still offers comparable renoprotection Saruta1995Kumagai2000.
Amlodipine in Clinical Settings
Effects in Hypertensive Patients with Renal Impairment
Clinical studies have shown that amlodipine effectively reduces blood pressure in hypertensive patients with renal impairment without significantly altering serum creatinine or blood urea nitrogen levels. This suggests that amlodipine does not exacerbate renal dysfunction in these patients Saruta1995Kumagai2000. Additionally, in hypertensive patients undergoing contrast media procedures, amlodipine pretreatment was associated with a lower incidence of contrast-induced acute kidney injury (CI-AKI) and improved overall survival .
Renal Transplant Recipients
In normotensive renal transplant recipients, amlodipine was found to reduce serum creatinine levels and showed a trend towards increased renal plasma flow, indicating potential benefits in this specific patient population .
Potential Risks and Overdose Concerns
Amlodipine Overdose
While therapeutic doses of amlodipine are generally safe, overdose can lead to severe complications, including acute kidney injury (AKI). Case reports have documented instances of AKI following significant amlodipine overdose, often in conjunction with other symptoms such as refractory hypotension and noncardiogenic pulmonary edema. These cases highlight the importance of cautious dosing and prompt management in overdose situations Naha2014Kute2011.
Interaction with Other Nephrotoxic Agents
Amlodipine has also been studied in the context of nephrotoxic agents like gentamicin. Research indicates that amlodipine can mitigate gentamicin-induced renal tubular toxicity, suggesting a protective role against certain drug-induced nephrotoxicity .
Conclusion
Overall, evidence suggests that amlodipine does not cause kidney damage when used at therapeutic doses and may even offer protective benefits in various renal conditions. However, caution is warranted in cases of overdose, where severe renal and systemic complications can occur. Further research is needed to fully elucidate the long-term renal effects of amlodipine, especially in diverse patient populations.
Sources and full results
Most relevant research papers on this topic
The Renal Protective Effect of Amlodipine in Diabetic Rats
Amlodipine protects kidneys in diabetic rats by reducing pathologic renal tubule disorder, decreasing apoptosis, increasing creatinine clearance, and decreasing urine albumine excretion.
Renal protective effects of amlodipine on partially nephrectomized spontaneously hypertensive rats fed a high-salt diet.
Amlodipine can reduce blood pressure and inhibit the progression of hypertensive renal injury in partially nephrectomized rats fed a high-salt diet.
Renal effects of amlodipine.
Amlodipine effectively reduces blood pressure and protects kidney function in hypertensive patients with renal impairment, but its mechanism of action differs from enalapril.
Amlodipine poisoning revisited: Acidosis, acute kidney injury and acute respiratory distress syndrome
Amlodipine overdose can cause severe complications, including metabolic acidosis, acute kidney injury, and acute respiratory distress syndrome, but in this case, the patient made a full recovery.
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Protective Effects of Amlodipine Pretreatment on Contrast-Induced Acute Kidney Injury And Overall Survival In Hypertensive Patients
Amlodipine treatment before contrast exposure protects hypertensive patients from contrast-induced acute kidney injury and prolongs survival.
Renal effects of amlodipine in normotensive renal transplant recipients.
Amlodipine effectively reduced serum creatinine in normotensive renal transplant recipients after 8 weeks of treatment, and was well-tolerated and well-tolerated in concomitant administration with cyclosporin A.
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Amlodipine is comparable to angiotensin-converting enzyme inhibitor for long-term renoprotection in hypertensive patients with renal dysfunction: a one-year, prospective, randomized study.
Amlodipine provides similar long-term renal protection as ACEI and is better tolerated for hypertensive patients with renal dysfunction.
Successful treatment of refractory hypotension, noncardiogenic pulmonary edema and acute kidney injury after an overdose of amlodipine
Successful treatment of refractory hypotension, noncardiogenic pulmonary edema, and acute kidney injury after amlodipine overdose can be achieved with fluids, inotropes, low-dose calcium, low dose insulin, mechanical ventilation, and hemodialysis.
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