Over-the-counter analgesic use.

Area of Science:

• Nephrology
• Pharmacology
• Radiology

Background:

• Chronic analgesic nephropathy is a serious kidney disease linked to prolonged use of pain relievers.
• It often involves chronic interstitial nephritis and renal papillary necrosis.
• Risk factors include multi-ingredient analgesics, caffeine, and dependence-inducing drugs.

Purpose of the Study:

• To investigate the causes and diagnostic methods for chronic analgesic nephropathy.
• To assess the renal risks associated with different types of analgesics.
• To highlight the ongoing public health challenge posed by over-the-counter analgesic nephropathy.

Main Methods:

• Review of clinical data and imaging findings in patients with suspected analgesic nephropathy.
• Analysis of the association between analgesic use patterns and renal function decline.
• Evaluation of the diagnostic accuracy of computed tomography (CT) scans.

Main Results:

• Computed tomography scans can accurately diagnose analgesic nephropathy, even without a clear history of analgesic use.
• Daily, long-term use of analgesic mixtures containing multiple agents and caffeine or dependence-inducing drugs is a primary cause.
• Moderate use of aspirin or NSAIDs poses minimal renal risk in individuals with normal kidney function.
• Continued use of non-phenacetin analgesics, with or without NSAIDs, accelerates kidney impairment.

Conclusions:

• Analgesic nephropathy remains a significant problem due to the availability of high-risk analgesic mixtures over the counter.
• CT imaging is a valuable tool for diagnosing this condition.
• Patient and physician education on the risks of certain analgesic combinations is crucial for prevention.