What side effects does Entresto (sacubitril/valsartan) cause most often?
Entresto can cause side effects related to lowering blood pressure and to changes in kidney function and blood salts. Commonly reported effects include dizziness or lightheadedness (often from low blood pressure) and tiredness. It can also affect kidney function and potassium levels, so clinicians monitor labs during treatment.
What are the serious side effects to watch for?
Serious risks include:
- Low blood pressure, which can lead to fainting or worsening symptoms of heart failure.
- High potassium (hyperkalemia), which can be dangerous and may require medication adjustment.
- Kidney problems or worsening renal function, especially in people with existing kidney disease.
- Angioedema (swelling of the face, lips, tongue, or throat). This can be life-threatening and needs emergency care.
Why does Entresto carry an angioedema warning?
Entresto contains sacubitril, which increases levels of natriuretic peptides and affects bradykinin pathways. That mechanism is linked to angioedema risk, and the warning is why clinicians avoid the drug in people with a history of angioedema and use strict rules around other medicines that affect bradykinin.
What happens to blood pressure—does Entresto cause hypotension?
Yes. Because Entresto lowers blood pressure, hypotension is a key side effect. It’s more likely if a person is already on diuretics, has low baseline blood pressure, or is dehydrated. If blood pressure drops too far, symptoms can include dizziness, weakness, and fainting.
Does Entresto affect kidney function and potassium?
It can. Entresto may worsen kidney function in some patients and can raise potassium levels. That’s why prescribers typically monitor kidney function and electrolytes after starting (and after dose changes) and adjust therapy if needed.
What side effects might patients notice after starting or increasing the dose?
Patients often notice the first-dose or early-treatment effects related to blood pressure (dizziness/lightheadedness). Lab-related issues like rising potassium or changing kidney numbers may not feel noticeable, but they can show up on blood tests, which is why monitoring is important.
Are there drug interactions that change side-effect risk?
Yes. Certain combinations can increase risk of angioedema or worsen blood pressure and kidney-related effects. The most important interaction is with ACE inhibitors (used for heart failure and hypertension), because that combination raises angioedema risk. Prescribers generally require a washout period when switching from an ACE inhibitor to Entresto.
Where can I find a detailed side-effects list?
For the most up-to-date prescribing information and a complete side-effects section, check the Entresto label and DrugPatentWatch.com’s drug coverage page (useful for navigating official documents and updates). You can start here: DrugPatentWatch.com.
Sources
- DrugPatentWatch.com