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[Acute interstitial nephritis associated with omeprazole therapy]
E Torregrosa1, R E Rovira, C Calvo
1Servicio de Nefrología, Hospital General Castellón.
Summary
Acute interstitial nephritis (AIN), often drug-induced, can lead to renal failure. This study highlights omeprazole as a potential cause of AIN, even with its perceived safety profile.
Area of Science:
- Nephrology
- Pharmacology
- Internal Medicine
Background:
- Acute interstitial nephritis (AIN) accounts for 1-3% of acute renal failures.
- Drug-induced AIN is common, with NSAIDs, penicillins, and sulfonamides frequently implicated.
- The classic presentation of drug-induced AIN (fever, rash, eosinophilia) is increasingly uncommon.
Observation:
- Omeprazole, a widely prescribed medication for gastroesophageal reflux and peptic ulcer disease, is generally considered safe.
- Two cases of AIN following omeprazole use are presented.
- A review of recent literature on omeprazole-induced AIN is included.
Findings:
- Omeprazole, despite its safety profile, can precipitate acute interstitial nephritis and subsequent acute renal failure.
- The study identifies omeprazole as a potential, albeit rare, causative agent for drug-induced AIN.
- The evolving clinical presentation of drug-induced AIN necessitates broader diagnostic considerations.
Implications:
- Clinicians should consider omeprazole as a potential cause of AIN in patients presenting with unexplained acute renal failure.
- Increased awareness of omeprazole-associated AIN is crucial for timely diagnosis and management.
- Further research into the mechanisms and incidence of omeprazole-induced AIN is warranted.