What low blood pressure (hypotension) can look like with Entresto
Entresto (sacubitril/valsartan) can lower blood pressure, especially when treatment starts or when the dose is increased. People may notice symptoms from reduced blood flow to the brain and other organs, such as dizziness when standing, lightheadedness, fainting, unusual tiredness, or weakness. If blood pressure drops too much, it can lead to falls or fainting, which is why clinicians monitor patients closely after starting or adjusting the dose.
How Entresto causes blood pressure to drop
Entresto combines two effects that can reduce blood pressure:
- Sacubitril increases natriuretic peptides, which helps lower blood pressure and fluid strain on the body.
- Valsartan blocks the angiotensin II receptor (an ARB), which also reduces blood pressure.
Together, these can make low blood pressure more likely, particularly in people who already run low or who have low circulating blood volume.
Who is more likely to get low blood pressure on Entresto
Low blood pressure is more likely if you have one or more of the following before starting or during treatment:
- Dehydration or low fluid intake, or recent vomiting/diarrhea
- Use of other blood pressure–lowering medicines (including diuretics)
- Higher Entresto doses or recent dose increases
- Kidney problems or other conditions that affect how you handle blood pressure and medications
Clinicians often reduce dose more gradually or adjust other blood pressure agents if symptoms occur.
What you should do if you feel dizzy or faint after starting Entresto
If you feel lightheaded or dizzy, especially when standing:
- Sit or lie down right away to prevent falls.
- Tell your prescriber promptly, because they may adjust the Entresto dose or review other medications that also lower blood pressure.
- Seek urgent care or emergency help if you faint, have severe symptoms, or feel unwell quickly.
Do not stop Entresto on your own without medical advice, since it’s used for heart failure management.
Other side effects people often ask about alongside low blood pressure
Patients and caregivers commonly connect hypotension symptoms with other drug effects that may accompany or signal a more serious problem, such as:
- Kidney function changes (often monitored with blood tests)
- Electrolyte changes, especially related to potassium
These are important because both low blood pressure and heart failure treatment adjustments can affect kidneys and lab values.
How doctors monitor and adjust Entresto when low blood pressure happens
Clinicians typically respond to symptomatic hypotension by:
- Slowing down titration (dose increases)
- Reducing the Entresto dose
- Adjusting diuretics or other blood pressure medicines if you’re on them
- Checking kidney function and electrolytes after changes
Monitoring matters because the goal is to keep the drug on board for heart failure benefit while preventing dangerous drops in blood pressure.
When low blood pressure might be an emergency
Get urgent medical attention if hypotension symptoms include:
- Fainting (syncope)
- Chest pain, trouble breathing, severe weakness, confusion, or inability to stay awake
- Persistent severe dizziness that doesn’t improve with sitting/lying down
Sources
I don’t have enough of the provided source material in this chat to cite Entresto’s specific prescribing-side-effect language. If you paste the relevant Drug labels (or the text you’re working from), I can extract and cite the exact low-blood-pressure warnings and symptom guidance.