Nephrology
Acute Kidney Injury Medication Adjustment
In acute kidney injury, promptly reconcile medications, stop or reassess reversible nephrotoxins, adjust renally cleared drugs to changing kidney function, preserve essential therapy when benefits outweigh risk, and monitor creatinine, urine output, volume status, and drug concentrations when exposure is unpredictable.
Immediate action
Medication actions when AKI is detected
Treat medication review as an immediate AKI intervention, not a discharge task.
At suspected or confirmed AKI, reconcile every prescribed, over-the-counter, inpatient, contrast-related, and recently discontinued medication against baseline creatinine, current creatinine trajectory, urine output, blood pressure, volume status, and the timing of acute illness. Stop or avoid nephrotoxic drugs and review drugs that alter renal hemodynamics or require renal dose adjustment. Nephrotoxins contribute to an estimated 20% to 30% of AKI cases. BMJBMJAcute kidney injury - Management recommendations | BMJ Best Practice
Do not equate all creatinine rises after medication exposure with intrinsic drug nephrotoxicity. A rise during vomiting, diarrhea, sepsis, perioperative hypotension, or heart failure may reflect reduced effective kidney perfusion compounded by NSAIDs, ACE inhibitors, ARBs, or diuretics. The immediate decision is to restore or support hemodynamics, identify the precipitating illness, and reassess whether each agent remains appropriate in the current physiologic state. BMJ+2BMJAcute kidney injury - Management recommendations | BMJ Best PracticeBMJWhat are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysisPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC
Measure and trend serum creatinine in adults with acute illness who have CKD, oliguria below 0.5 mL/kg/hour, hypovolemia, sepsis, recent iodinated contrast exposure, obstructive symptoms, or recent exposure to NSAIDs, aminoglycosides, ACE inhibitors, ARBs, or diuretics. CKD with eGFR below 60 mL/min/1.73 m² confers particular AKI risk. nice org uk+1nice org uk[PDF] Acute kidney injury - NICEnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
Document baseline kidney function and the onset of creatinine rise before attributing AKI to a medication. PubMed+1PubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIHnice org uk[PDF] Acute kidney injury - NICE
Hold an antihypertensive or diuretic when it is contributing to hypotension, hypovolemia, or impaired renal perfusion; reassess after volume and blood-pressure optimization. BMJBMJAcute kidney injury - Management recommendations | BMJ Best Practice
Avoid iodinated contrast when it is not necessary during active AKI; if imaging is urgent, explicitly weigh diagnostic benefit against nephrotoxic risk. PubMed+1PubMedAdherence to guidelines for management of acute kidney injuryPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC
If sepsis is suspected or confirmed, implement the local sepsis bundle within 1 hour and pursue source control while reviewing antimicrobial nephrotoxicity and dose exposure. BMJBMJAcute kidney injury - Management recommendations | BMJ Best Practice
Drug classes
Which medications to stop, hold, or intensively monitor
Separate direct nephrotoxins from drugs that become hazardous when renal perfusion falls.
Stop NSAIDs in established AKI unless an exceptional competing indication outweighs renal risk. NSAIDs can exacerbate AKI during hypovolemia and are associated with interstitial nephritis, which can itself cause AKI or worsen preexisting injury. Their risk is amplified by concurrent renin-angiotensin system blockade and diuretics. PubMed+1PubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIHnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
ACE inhibitors and ARBs require a contextual decision rather than automatic permanent discontinuation. During AKI with hypotension, hypovolemia, or impaired renal autoregulation, temporarily withhold or reassess the agent while correcting the precipitating physiology. These drugs are specifically identified among medications that can cause or exacerbate AKI, especially in hypovolemic patients. BMJ+2BMJAcute kidney injury - Management recommendations | BMJ Best PracticeBMJWhat are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysisnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
Diuretics should be evaluated against the patient’s effective circulating volume and congestion rather than discontinued reflexively. In a patient with AKI plus hypovolemia or hypotension, holding the diuretic is appropriate while volume status and blood pressure are optimized; continued diuretic exposure can also compound NSAID and renin-angiotensin system inhibitor risk. BMJ+2BMJAcute kidney injury - Management recommendations | BMJ Best PracticeBMJWhat are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysisScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect
Aminoglycosides are recognized nephrotoxic exposures in AKI risk assessment and should be avoided when a clinically effective non-nephrotoxic alternative is available. When an aminoglycoside is necessary, dose selection cannot rely on a static renal-function estimate during fluctuating AKI; incorporate severity of infection, changing renal clearance, and therapeutic drug monitoring where available. BMJ+3BMJAcute kidney injury - Management recommendations | BMJ Best PracticeNatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews NephrologyScienceDirectTherapeutic Drug Monitoring - an overviewnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
For patients with CKD stage G3 or higher, defined as eGFR below 60 mL/min/1.73 m², KDIGO guidance supports avoiding nephrotoxic medications or reducing their dose. In AKI superimposed on CKD, use the best current estimate of kidney function for dose adjustment, but recognize that rapidly changing creatinine makes any single estimate imprecise. PubMed+2PubMedKDIGO 2024 clinical practice guideline on evaluation and ... - PMCPubMedUse of nephrotoxic medications in adults with chronic kidney disease in Swedish and US routine carePubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIH
Ask specifically about nonprescription NSAIDs; unrecorded community NSAID use may be the modifiable exposure in an otherwise unexplained hemodynamic AKI. NEJM+1NEJMAcute Kidney Injury Associated With Dual Antihypertensive Therapy And NSAIDs « CardioExchangeScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect
Review medication combinations, not only individual agents: NSAID plus an ACE inhibitor or ARB plus a diuretic is the highest-yield preventable pattern. BMJ+1BMJWhat are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysisScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect
Avoid substituting one nephrotoxin for another without defining the treatment target, expected duration, and monitoring plan. BMJ+1BMJAcute kidney injury - Management recommendations | BMJ Best PracticePubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC
The NSAID–renin-angiotensin system inhibitor–diuretic interaction
In a community nested case-control study using a 50% or greater rise in creatinine to define AKI, NSAID exposure increased AKI risk with triple therapy comprising a renin-angiotensin system inhibitor plus diuretic (adjusted rate ratio 1.64; 95% CI, 1.25-2.14). Increased risk was also observed with NSAID plus a renin-angiotensin system inhibitor alone (adjusted rate ratio 1.60; 95% CI, 1.18-2.17) and NSAID plus a diuretic alone (adjusted rate ratio 1.64; 95% CI, 1.17-2.29). ScienceDirectScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect
When a patient taking one or more of these agents develops intercurrent illness, assess hydration, blood pressure, creatinine, and urine output before adding an NSAID. During active AKI, remove the NSAID first and reassess the need for the hemodynamically active agents after volume and pressure are corrected; observational data support association, but do not establish that every combination mandates permanent cessation. BMJ+1BMJWhat are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysisScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect
Community AKI incidence in the cited cohort was 68 per 10,000 person-years, and the absolute risk increase was greater with triple than dual combinations. ScienceDirectScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect
Recent medication exposure is particularly relevant when acute illness is accompanied by hypovolemia, sepsis, or oliguria. nice org uk+1nice org uk[PDF] Acute kidney injury - NICEnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
Dosing
Renal dose adjustment during changing kidney function
AKI dosing is a repeated assessment, not a one-time creatinine-based order change.
Adjust medication doses for renal function in all patients at risk for or with established AKI, but reassess whenever the creatinine trajectory, urine output, fluid balance, hemodynamics, or renal replacement therapy changes. KDIGO therapeutic measures include medication-dose adjustment, hemodynamic monitoring, fluid balance control, discontinuation of nephrotoxins, and avoidance of iodinated contrast where possible. PubMedPubMedAdherence to guidelines for management of acute kidney injury
Creatinine-based renal estimates can lag behind abrupt changes in filtration. In critically ill AKI, expanded volume of distribution, altered clearance, and renal replacement therapy create substantial pharmacokinetic variability; dosing should therefore incorporate the clinical indication, severity of infection, renal and volume trajectory, modality of renal support, and drug-specific pharmacodynamics rather than a published renal-dose table alone. Nature+2NatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews NephrologyNatureAcute kidney injury | Nature Reviews Nephrologykhi asn-onlineKidney Health Initiative (KHI) | Pharmacokinetics in Patients Receiving Continuous Renal Replacement Therapy
For life-threatening infection, avoid underexposure caused by automatic reduction of initial antimicrobial doses solely because creatinine is elevated. Critically ill patients with AKI may require increased antibiotic doses despite reduced renal clearance, particularly for serious infections. After initial therapy, use serial clinical assessment and therapeutic drug monitoring when available to individualize exposure. Nature+1NatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews NephrologyScienceDirectTherapeutic Drug Monitoring - an overview
Recalculate the dosing plan after initiation, discontinuation, or modality change of renal replacement therapy. Nature+1NatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews Nephrologykhi asn-onlineKidney Health Initiative (KHI) | Pharmacokinetics in Patients Receiving Continuous Renal Replacement Therapy
Use therapeutic drug monitoring for agents with narrow therapeutic ranges or marked pharmacokinetic variability when assays and interpretable targets are available. ScienceDirect+1ScienceDirectTherapeutic Drug Monitoring - an overviewScienceDirectTherapeutic Drug Monitoring - an overview | ScienceDirect Topics
Do not base antibiotic adjustment solely on a single estimated GFR in unstable AKI or during continuous renal replacement therapy. Nature+2NatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews NephrologyNatureAcute kidney injury | Nature Reviews Nephrologykhi asn-onlineKidney Health Initiative (KHI) | Pharmacokinetics in Patients Receiving Continuous Renal Replacement Therapy
Therapeutic drug monitoring
Therapeutic drug monitoring measures drug concentrations in serum or plasma at defined times to guide dose selection, therapeutic response, and toxicity prevention. It is most useful when dose poorly predicts exposure because of high pharmacokinetic variability or a narrow therapeutic index. ScienceDirect+1ScienceDirectTherapeutic Drug Monitoring - an overviewScienceDirectTherapeutic Drug Monitoring - an overview | ScienceDirect Topics
In ICU AKI, obtain and interpret concentrations in conjunction with dose timing, changing renal function, fluid status, and renal replacement modality. For beta-lactams in one ICU evaluation, 74% of patients required dose adjustment after the first measurement and half required a dose increase, illustrating the risk of empiric underdosing in critically ill patients. ScienceDirectScienceDirectTherapeutic Drug Monitoring - an overview
Document the exact sampling time relative to administration before acting on a drug concentration. ScienceDirect+1ScienceDirectTherapeutic Drug Monitoring - an overviewScienceDirectTherapeutic Drug Monitoring - an overview | ScienceDirect Topics
Coordinate with pharmacy when AKI is evolving or continuous renal replacement therapy is used because standardized ICU dosing data remain limited. Nature+1NatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews Nephrologykhi asn-onlineKidney Health Initiative (KHI) | Pharmacokinetics in Patients Receiving Continuous Renal Replacement Therapy
Reassessment
Do not misclassify AKI or delay escalation
Medication adjustment is safer when the AKI mechanism is actively re-evaluated.
Use the medication timeline to prioritize mechanisms, but do not diagnose prerenal, intrinsic, or postrenal AKI from fractional excretion of sodium, fractional excretion of urea, or urine osmolality alone. These indices are altered by commonly used drugs, including diuretics, and no single marker reliably distinguishes AKI causes in isolation. Integrate volume examination, hemodynamics, urinalysis, obstruction history, creatinine trend, and response to targeted interventions. PubMedPubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIH
Evaluate for obstruction when symptoms or history suggest urologic obstruction or a condition predisposing to obstruction, because medication withholding will not correct a postrenal process. AKI risk assessment should also actively identify sepsis, hypovolemia, contrast exposure, and nephritic features such as edema or hematuria, each of which changes the next diagnostic and therapeutic action. nice org uk+1nice org uk[PDF] Acute kidney injury - NICEnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
Discuss AKI management with nephrology as soon as possible and within 24 hours when there is stage 3 AKI, inadequate response to initial treatment, AKI complications, renal transplantation, or another high-risk clinical context. This should occur alongside—not after—medication reconciliation and hemodynamic optimization. nice org uk+1nice org uk[PDF] Acute kidney injury: prevention, detection and management | NICEnice org uk[PDF] National Institute for Health and Care Excellence - NICE
Escalate immediately for AKI complications rather than waiting for medication changes to reverse the course. nice org uk+1nice org uk[PDF] Acute kidney injury: prevention, detection and management | NICEnice org uk[PDF] National Institute for Health and Care Excellence - NICE
If central venous access is needed in AKI, KDIGO-based measures favor subclavian access rather than other sites. PubMedPubMedAdherence to guidelines for management of acute kidney injury
Use fluid balance monitoring to distinguish ongoing hypovolemia from fluid accumulation before continuing, withholding, or reintroducing diuretics. PubMed+1PubMedAdherence to guidelines for management of acute kidney injuryPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC
Recovery
Medication reintroduction and post-AKI surveillance
Reintroduce beneficial chronic therapy only after the acute physiology and kidney trajectory are reassessed.
After AKI improves, perform a second medication reconciliation rather than automatically resuming the preadmission list. Reassess the original indication for ACE inhibitor, ARB, diuretic, and any nephrotoxic medication; confirm recovery of blood pressure, volume status, urine output, and kidney function before reintroducing an agent that was withheld for hemodynamic AKI. BMJ+2BMJAcute kidney injury - Management recommendations | BMJ Best PracticePubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMCPubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIH
Arrange follow-up at approximately 3 months after AKI to assess kidney recovery and progression to CKD or progressive CKD. The follow-up evaluation should include kidney function, proteinuria, medication reconciliation, patient education on nephrotoxin avoidance, and CKD-progression prevention strategies when kidney disease persists. PubMedPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC
For patients with CKD or prior AKI, provide explicit anticipatory counseling about dehydration and nephrotoxin exposure, especially NSAID use. This is most consequential when patients also take ACE inhibitors, ARBs, or diuretics or have eGFR below 60 mL/min/1.73 m². ScienceDirect+2ScienceDirectCombined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirectPubMedUse of nephrotoxic medications in adults with chronic kidney disease in Swedish and US routine carePubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIH
At follow-up, compare creatinine with the documented pre-AKI baseline and assess proteinuria rather than assuming renal recovery from clinical improvement alone. PubMedPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC
Update renal dosing for chronic medications if residual CKD is present. PubMed+1PubMedKDIGO 2024 clinical practice guideline on evaluation and ... - PMCPubMedUse of nephrotoxic medications in adults with chronic kidney disease in Swedish and US routine care
Record an NSAID avoidance plan in the medication list when NSAIDs contributed to, or are likely to exacerbate, AKI. BMJ+1BMJAcute kidney injury - Management recommendations | BMJ Best PracticePubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIH
| Assessment | Decision enabled |
|---|---|
| Kidney function | Determine recovery versus persistent kidney dysfunction and revise renal drug dosing. PubMedPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC |
| Proteinuria | Assess prognosis and identify persistent kidney disease requiring CKD-directed management. PubMedPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC |
| Medication reconciliation | Avoid inadvertent re-exposure to nephrotoxins and reassess chronic therapy indications. PubMedPubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC |
| Nephrotoxin avoidance counseling | Reduce recurrent exposure to NSAIDs and other potentially nephrotoxic drugs during future illness. PubMed+1PubMedAcute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMCPubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIH |
Common questions
Should ACE inhibitors or ARBs always be stopped in AKI?
No permanent rule applies. Reassess or temporarily withhold them when AKI occurs with hypotension, hypovolemia, or impaired renal autoregulation, then reconsider the indication after hemodynamics and kidney function stabilize. BMJ+3BMJAcute kidney injury - Management recommendations | BMJ Best PracticeBMJWhat are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysisPubMedAcute Kidney Injury - StatPearls - NCBI Bookshelf - NIHnice org uk[PDF] Acute kidney injury: prevention, detection and management | NICE
Can a renally cleared antibiotic simply be dose-reduced at AKI recognition?
Not reliably in critical illness. AKI, fluid shifts, and renal replacement therapy cause variable pharmacokinetics, and severe infection may require higher exposure despite reduced renal clearance; use serial reassessment and therapeutic drug monitoring when available. Nature+3NatureAntibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews NephrologyNatureAcute kidney injury | Nature Reviews NephrologyScienceDirectTherapeutic Drug Monitoring - an overviewkhi asn-onlineKidney Health Initiative (KHI) | Pharmacokinetics in Patients Receiving Continuous Renal Replacement Therapy
References
- Acute kidney injury - Management recommendations | BMJ Best Practice — bestpractice.bmj.com · bestpractice.bmj.com
- Re: The nephrotoxic “triple whammy” of combining diuretics, ACE inhibitors, and diuretics | The BMJ — www.bmj.com · www.bmj.com
- Concurrent use of diuretics, angiotensin converting enzyme inhibitors, and angiotensin receptor blockers with non-steroidal anti-inflammatory drugs and risk of acute kidney injury: nested case-control study | The BMJ — www.bmj.com · www.bmj.com
- Acute Kidney Injury Associated With Dual Antihypertensive Therapy And NSAIDs « CardioExchange — blogs.nejm.org · blogs.nejm.org
- What are the risks and benefits of temporarily discontinuing medications to prevent acute kidney injury? A systematic review and meta-analysis — bmjopen.bmj.com · bmjopen.bmj.com
- Associated Acute Kidney Injury (EPIS- AKI): study protocol ... — bmjopen.bmj.com · bmjopen.bmj.com
- Antibiotic dosing in critically ill patients with acute kidney injury | Nature Reviews Nephrology — www.nature.com · www.nature.com
- Acute kidney injury | Nature Reviews Nephrology — www.nature.com · www.nature.com
- Prevention and management of antibiotic associated acute kidney ... — journals.lww.com · journals.lww.com
- Therapeutic Drug Monitoring - an overview — www.sciencedirect.com · www.sciencedirect.com
- Therapeutic Drug Monitoring - an overview | ScienceDirect Topics — www.sciencedirect.com · www.sciencedirect.com
- Combined use of nonsteroidal anti-inflammatory drugs with diuretics and/or renin–angiotensin system inhibitors in the community increases the risk of acute kidney injury - ScienceDirect — www.sciencedirect.com · www.sciencedirect.com
- Practical Approach to Detection and Management of Chronic Kidney ... — www.sciencedirect.com · www.sciencedirect.com
- Adherence to guidelines for management of acute kidney injury — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- KDIGO 2024 clinical practice guideline on evaluation and ... - PMC — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- Use of nephrotoxic medications in adults with chronic kidney disease in Swedish and US routine care — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- Acute Kidney Injury: From Diagnosis to Prevention and Treatment Strategies - PMC — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- Acute Kidney Injury - StatPearls - NCBI Bookshelf - NIH — www.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
- Nephrotoxic Medications - StatPearls - NCBI Bookshelf — www.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
- [PDF] Acute kidney injury - NICE — www.nice.org.uk · www.nice.org.uk
- [PDF] Acute kidney injury: prevention, detection and management | NICE — www.nice.org.uk · www.nice.org.uk
- [PDF] National Institute for Health and Care Excellence - NICE — www.nice.org.uk · www.nice.org.uk
- Nephrotoxic Medication Exposure and Acute Kidney Injury in Neonates | NeoReviews | American Academy of Pediatrics — publications.aap.org · publications.aap.org
- Kidney Health Initiative (KHI) | Pharmacokinetics in Patients Receiving Continuous Renal Replacement Therapy — khi.asn-online.org · khi.asn-online.org