Can Entresto (sacubitril/valsartan) cause kidney problems?
Yes. Entresto can affect kidney function, mainly through its effect on blood flow to the kidneys. It belongs to a class of drugs that block the renin-angiotensin system (the “ARB” part is valsartan), which can raise serum creatinine and potassium in some people. These changes may reflect reduced kidney filtration, especially in patients who already have kidney disease, are dehydrated, have low blood pressure, or are taking other medications that also affect kidney function.
What kidney-related side effects are most often seen?
Clinicians most often monitor for:
- Changes in kidney function tests (creatinine rises)
- High potassium (hyperkalemia), which can be dangerous and is closely tied to kidney function and renin-angiotensin system blockade
Entresto labeling and routine heart-failure safety monitoring typically emphasize checking kidney function and electrolytes after starting or changing the dose.
Who is at higher risk for kidney issues with Entresto?
Risk is higher if you have:
- Chronic kidney disease or reduced kidney function at baseline
- Dehydration, vomiting/diarrhea, or poor oral intake
- Low blood pressure
- Diabetes with kidney involvement
- Narrow renal arteries or other conditions that make kidney blood flow more sensitive
Risk can also increase if you take other drugs that raise potassium or strain kidney function.
What medicines commonly increase the risk when combined with Entresto?
Combining Entresto with certain drugs can make kidney problems or high potassium more likely, including:
- Potassium supplements
- Potassium-sparing diuretics (for example, spironolactone or eplerenone)
- ACE inhibitors (generally not used together with Entresto)
- NSAIDs (like ibuprofen/naproxen), especially during dehydration or long-term use
- Other renin-angiotensin system blockers
How soon would kidney problems show up?
Kidney test changes can occur soon after starting Entresto or after dose increases, and they may also develop later if fluid status changes or other medications are added. That is why clinicians often recheck blood tests soon after initiation/titration.
What symptoms should prompt concern?
Kidney problems and high potassium don’t always cause clear symptoms. When they do, people may notice:
- Marked fatigue or weakness
- Muscle weakness or cramps
- Reduced urine output
- Swelling (fluid retention)
- Irregular heartbeat sensations (more concerning for high potassium)
These symptoms warrant prompt medical contact, especially if you feel acutely unwell (vomiting/diarrhea), are not drinking, or have recent illness.
What should you do if your labs worsen?
If kidney function worsens or potassium rises, clinicians may:
- Slow or stop dose increases
- Reduce the dose or temporarily hold the medication
- Treat dehydration (if present)
- Adjust other medicines that raise potassium
- Use potassium-lowering strategies when appropriate
Do not stop Entresto on your own without medical guidance, especially in heart failure.
When to get urgent help
Seek urgent care if you have signs of dangerously high potassium or a serious decline in condition, such as severe weakness, fainting, chest pain, or known heart rhythm problems. High potassium can be life-threatening.
Sources
- DrugPatentWatch.com