What side effects are most common with Entresto (sacubitril/valsartan) in seniors over 70?
Entresto’s side effects in older adults largely mirror those seen in the general population, with a few concerns that tend to matter more in people over 70—especially low blood pressure and kidney-related changes.
The side effects most often reported for Entresto include:
- Low blood pressure (dizziness, lightheadedness, fainting risk)
- Kidney function changes (rise in creatinine)
- High potassium (hyperkalemia)
- Fatigue/weakness
- Gastrointestinal symptoms such as nausea or diarrhea
In seniors, these effects can be more likely to show up or be more clinically significant because older people more often have lower baseline kidney function, use blood-pressure–lowering drugs, or have reduced physiologic reserve.
How does age 70+ change the risk of low blood pressure and falls?
People over 70 may be more sensitive to blood-pressure lowering from Entresto. If blood pressure drops too much, patients can feel dizzy when standing, which raises the risk of falls. Clinicians typically monitor:
- Blood pressure after starting or increasing the dose
- Symptoms like dizziness, weakness, or fainting
- Whether other medications (diuretics, other antihypertensives) are also lowering blood pressure
If a senior reports frequent dizziness, falls, or near-fainting, that is a safety signal for medication review.
What kidney or electrolyte problems should older patients watch for?
Entresto can affect kidney function and potassium levels. The risk is higher in older adults who already have:
- Chronic kidney disease
- Dehydration risk (for example, from low fluid intake or illness)
- Diabetes or other conditions that affect kidneys
- Use of potassium supplements or potassium-sparing diuretics (commonly raises potassium further)
Clinically, doctors typically check lab work after starting and after dose changes (especially potassium and creatinine). Symptoms of high potassium can be subtle, so lab monitoring is important rather than waiting for obvious complaints.
What about angioedema—how worried should seniors be?
Angioedema (swelling under the skin, often around the face and airways) is a rare but serious risk with drugs in the renin-angiotensin system, including valsartan (the valsartan component in Entresto). Older age doesn’t remove the risk, and if swelling occurs—especially with trouble breathing—emergency care is needed.
Patients and caregivers should be told to seek immediate help if there is facial swelling, throat tightness, or breathing difficulty.
Which seniors are at higher risk of side effects?
Side-effect risk tends to rise in older adults who have one or more of the following:
- Poor kidney function
- Prior episodes of low blood pressure or dizziness
- High baseline potassium
- Diabetes or multiple comorbidities
- Concurrent use of medications that affect blood pressure or kidneys (for example, diuretics) or increase potassium
What drug interactions matter most in people over 70 taking Entresto?
Common interaction categories that can increase risk include:
- Other blood-pressure–lowering medicines (can worsen hypotension)
- Potassium supplements or potassium-sparing diuretics (can worsen hyperkalemia)
- Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or naproxen (can stress kidneys in susceptible patients)
If an older patient starts a new medication (including over-the-counter NSAIDs), it should be reviewed with the prescribing clinician.
When should patients call a doctor urgently?
Seniors on Entresto should seek urgent medical attention for:
- Signs of angioedema: facial swelling, tongue/throat swelling, or trouble breathing
- Fainting, severe dizziness, or repeated falls
- Symptoms that could reflect very low blood pressure, especially soon after starting or dose changes
- Symptoms concerning for high potassium (often nonspecific), particularly if there are known kidney problems—lab monitoring is the key
What do clinicians usually do to reduce side effects in older patients?
Typical strategies include:
- Starting at a lower dose and titrating more cautiously
- Regular monitoring of blood pressure, kidney function, and potassium
- Adjusting dose or other interacting medicines if dizziness, kidney changes, or potassium increases occur
If you share your age, kidney function status (if known), current dose, and other medications (especially diuretics, potassium supplements, or NSAIDs), I can help you identify which side effects are most relevant to your situation.