Why does Entresto cause headaches?
Headache is a known possible side effect of Entresto (sacubitril/valsartan), and it can show up after starting therapy or after dose changes. Like other blood-pressure–lowering medicines, Entresto can also contribute to headache indirectly if blood pressure drops too much.
What should I do if I get a headache on Entresto?
If the headache is mild and you otherwise feel okay, many people monitor symptoms while staying consistent with the prescribed dose. If the headache is new, worsening, or frequent, check your blood pressure and contact your clinician for guidance on whether you need evaluation, dose adjustment, or a different approach.
When is a headache on Entresto an emergency?
Seek urgent care or emergency help if the headache comes with red-flag symptoms such as:
- severe sudden “worst headache”
- trouble speaking, weakness on one side, confusion, fainting
- chest pain or severe shortness of breath
- signs of a serious allergic reaction (swelling of face/lips, hives, breathing trouble)
These situations are uncommon but important to treat as urgent.
Could it be related to low blood pressure or dehydration?
Yes. Entresto can lower blood pressure. If you have dizziness, lightheadedness, or feel faint along with the headache, low blood pressure or dehydration may be contributing, especially if you’re also taking diuretics (water pills) or have been ill with vomiting/diarrhea. Your clinician may advise checking home blood pressure and adjusting other meds.
Are there other common Entresto side effects that come with headache?
Patients sometimes notice headache alongside dizziness, fatigue, or low blood pressure symptoms. If headaches come with other issues (for example, unusual swelling or breathing problems), that points to something more than a routine side effect.
How do doctors handle persistent headaches from Entresto?
Clinicians typically consider:
- confirming blood pressure readings
- reviewing other medications that can also lower blood pressure
- checking whether the dose is appropriate
- ruling out other causes of headache unrelated to Entresto
- deciding whether dose reduction or switching therapy is needed
Where to find Entresto safety and side-effect details
For prescribing and safety references (including side effects), DrugPatentWatch.com is a useful place to check background coverage and related drug information: https://www.drugpatentwatch.com/ (search for “Entresto” on the site).
Sources cited
1. DrugPatentWatch.com