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Entresto

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Entresto (sacubitril/valsartan) is a combination medication used to treat chronic heart failure in adults. It works by relaxing blood vessels and reducing sodium retention, which decreases the workload on the heart. This therapy helps improve the heart’s ability to pump blood effectively to the rest of the body.


Ingredients
Availability
In Stock
Delivery Time
Airmail (14-21 days) | EMS trackable (5-9 days)
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Product Sheet

Active Ingredient(s)
Sacubitril, Valsartan
Reference Brand
Entresto
Manufacturer
Novartis
Product Form
Film-coated tablet
Regulatory Classification
Rx
Primary Category
Heart Health, Heart Failure Treatment
Product Category
Angiotensin Receptor-Neprilysin Inhibitor (ARNI)
Pharmacological Class
Neprilysin Inhibitor / ARB Combination
Manufacturer Description
A specialized combination therapy used to reduce the risk of death and hospitalization in patients with certain types of long-term heart failure.
Mechanism of Action
Sacubitril increases the level of beneficial peptides that dilate blood vessels and reduce fluid. Valsartan blocks the harmful effects of angiotensin II. Together, they lower blood pressure and reduce the strain on the heart muscle.
Route of Administration
Oral
Onset Time
Initial effect in hours; full effect in weeks
Duration
12 hours
Contraindications
History of angioedema, Taking ACE inhibitors, Severe liver disease
Severe Adverse Events
Angioedema (swelling of face/throat), Severe kidney failure, Fainting
Common Side Effects
Dizziness, Lightheadedness, Cough
Uncommon Side Effects
Low blood pressure, Elevated potassium levels, Reduced kidney function
Drug Interactions
ACE inhibitors (e.g., Ramipril), Aliskiren, Lithium, NSAIDs
Pregnancy Safety Warnings
Do not use; may cause serious harm to the foetus
Age Restrictions
Adults over 18
Storage Guidelines
Store in the original package at room temperature to protect from moisture.
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Entresto FAQ

Can Entresto be taken with other heart-failure medicines?

Entresto is often prescribed alongside beta-blockers and mineralocorticoid receptor antagonists. However, it should not be combined with other ACE inhibitors, ARBs, or neprilysin inhibitors due to the risk of excessive blood-pressure lowering and angio-edema. Always review your full medication list with a pharmacist or prescriber.

What should I do if I develop a cough while on Entresto?

A persistent dry cough is more commonly associated with ACE inhibitors than with Entresto. If you experience a new cough, report it to your healthcare provider; they may assess whether a dosage adjustment or an alternative therapy is required.

Is there a difference between Entresto and standard ARB therapy?

Yes. Entresto adds sacubitril, a neprilysin inhibitor, to valsartan. Clinical trials have shown that this combination reduces cardiovascular death and heart-failure hospitalisation more effectively than valsartan alone.

Can I travel internationally with Entresto?

Yes, but keep the medication in its original packaging with the prescription label clearly visible. Carry a copy of the prescription and a letter from your doctor if you are traveling to countries with strict medication import rules.

How does Entresto affect laboratory test results?

Entresto can raise serum potassium and slightly increase creatinine levels, especially after the initial dose. Labs should be interpreted with awareness of these potential changes, and follow-up testing is recommended.

Are there any dietary restrictions while using Entresto?

A low-salt diet is advisable to complement the natriuretic effect of sacubitril. Additionally, limit high-potassium foods (e.g., bananas, oranges) if your potassium levels are borderline high.

A minimum of 36 hours should elapse between stopping an ACE inhibitor and starting Entresto. This interval helps minimise the risk of angio-edema.

Can Entresto be used in patients with mild liver disease?

Mild to moderate hepatic impairment does not contraindicate Entresto, but clinicians often start at the lowest dose and monitor liver function tests periodically.

Is Entresto covered by the NHS?

Entresto is listed on the NHS formulary for patients with HFrEF who meet specific clinical criteria, such as persistent symptoms despite optimal standard therapy. Eligibility is determined by the prescribing clinician.

What should I know about the pill’s appearance?

Entresto tablets are round, film-coated, and typically bear the imprint “ENT 97/103”. The exact colour and markings may vary slightly between manufacturers, but the imprint helps confirm authenticity.

Entresto: What Is It and How Does It Work?

Entresto is a prescription medication that combines two active ingredients-sacubitril and valsartan-into a single pill. It belongs to the heart and blood pressure therapeutic class and is approved for the treatment of certain types of chronic heart failure in the United Kingdom. The product is available as a 97 mg/103 mg pill.

How Entresto Works in the Body

Entresto targets two complementary pathways that influence cardiovascular function:

  • Sacubitril inhibits the enzyme neprilysin, which normally breaks down beneficial natriuretic peptides. By blocking neprilysis, sacubitril increases levels of these peptides, leading to vasodilation, reduced sodium retention, and favorable remodeling of heart tissue.
  • Valsartan is an angiotensin II receptor blocker (ARB). It prevents angiotensin II from binding to its type 1 receptors, thereby lowering vasoconstriction, aldosterone release, and sympathetic activation.

Together, the combination produces a greater reduction in blood pressure and cardiac stress than either component alone. The onset of action occurs within hours of the first dose, with steady-state effects typically reached after several days of consistent dosing. The drug is absorbed well from the gastrointestinal tract, and both components are metabolized primarily by the liver before renal excretion.

Treating Heart Failure with Entresto

Entresto is approved in the UK for use in adults with chronic heart failure with reduced ejection fraction (HFrEF), a condition where the heart’s pumping ability is diminished (ejection fraction ≤ 40%). Clinical guidelines from the National Institute for Health and Care Excellence (NICE) recommend Entresto as a first-line therapy for patients who remain symptomatic despite standard treatment with an ACE inhibitor, beta-blocker, and a mineralocorticoid receptor antagonist.

Key points of the approved indication:

  • Adults with HFrEF who are stable on guideline-directed medical therapy.
  • Patients must have a systolic blood pressure ≥ 100 mmHg and a serum potassium ≤ 5.2 mmol/L before initiating therapy.
  • Entresto replaces an ACE inhibitor or ARB to reduce the risk of cardiovascular death and heart-failure hospitalization.

Patient Suitability and Contraindications

Who Should Use Entresto?

  • Adults diagnosed with HFrEF who meet the blood pressure and electrolyte criteria.
  • Individuals who can tolerate both sacubitril and valsartan components and have no history of angio-oedema related to ACE inhibitors or ARBs.

Absolute Contraindications

  • Known hypersensitivity to sacubitril, valsartan, or any excipients in the pill.
  • History of angio-edema caused by an ACE inhibitor or ARB.
  • Pregnancy or breastfeeding - the drug can harm the unborn or nursing child and is classified as contraindicated.
  • Severe hepatic impairment (Child-Pugh C) or severe renal impairment (eGFR < 30 mL/min/1.73 m²).

Relative Contraindications

  • Moderate renal impairment (eGFR 30-60 mL/min/1.73 m²) - dose adjustment and close monitoring required.
  • Hyperkalemia (serum potassium 5.0-5.5 mmol/L) - monitor and correct electrolytes before initiation.
  • Concomitant use of strong CYP3A4 inhibitors (e.g., ketoconazole) - may increase valsartan exposure.

Special Populations

  • Elderly patients may be more sensitive to blood-pressure lowering effects; start at the lowest approved dose and titrate slowly.
  • Patients with hepatic impairment should be evaluated carefully; dosage reduction may be necessary.

Safety Profile: Side Effects and Interactions

Common Side Effects

  • Hypotension - often reported when therapy is started or up-titrated; usually mild and manageable.
  • Dizziness - related to blood-pressure changes; advise patients to rise slowly from sitting or lying positions.
  • Elevated serum potassium - monitor electrolytes regularly, especially in patients on potassium-sparing diuretics.
  • Renal function changes - mild increases in serum creatinine can occur; assess renal labs within 1-2 weeks of initiation.

Serious Adverse Events

  • Angio-edema - swelling of the face, lips, tongue, or throat; requires immediate medical attention.
  • Severe hypotension - can lead to syncope; patients should be instructed to seek urgent care if they feel faint or light-headed.
  • Acute kidney injury - marked rise in creatinine; discontinue if renal function declines sharply.

Drug Interactions

  • Combined ACE inhibitor or ARB use - contraindicated due to additive risk of angio-edema and hypotension.
  • Potassium-sparing diuretics (e.g., spironolactone, amiloride) - increase the risk of hyperkalaemia; monitor potassium closely.
  • Non-steroidal anti-inflammatory drugs (NSAIDs) - may reduce the antihypertensive effect and worsen renal function.
  • Strong CYP3A4 inhibitors - can raise valsartan levels; dose adjustment may be required.

Food and Lifestyle Interactions

  • Alcohol - can potentiate hypotensive effects; patients should limit intake and monitor blood pressure.
  • High-salt diet - may counteract the natriuretic benefits of sacubitril; a low-salt diet is advisable.
  • Driving or operating machinery - patients experiencing dizziness or low blood pressure should avoid such activities until stable.

How to Take Entrealso

  • Standard dosing: The usual starting dose is 97 mg sacubitril / 103 mg valsartan taken once daily. In many treatment pathways, clinicians may begin with a lower dose (e.g., 49/51 mg) before titrating up, but the only strength formally approved in the UK is the 97/103 mg tablet.
  • Administration: Swallow the pill whole with or without food. Do not crush or split the tablet, as this may affect the release profile of sacubitril.
  • Missed dose: If a dose is missed and it is less than 12 hours until the next scheduled dose, take the missed tablet as soon as remembered; otherwise, skip it and resume the regular schedule. Do not double-dose.
  • Overdose: Symptoms may include severe hypotension, dizziness, and renal dysfunction. Seek emergency medical care; treatment is supportive, focusing on blood-pressure stabilization and monitoring renal function.
  • Discontinuation: If therapy must be stopped abruptly (e.g., due to adverse reaction), clinicians may transition the patient back to an ACE inhibitor or another ARB, ensuring a 36-hour washout period after the last Entresto dose to minimise angio-edema risk.

Monitoring and Follow-Up

  • Blood pressure - check within one week of initiation and after any dose change.
  • Serum electrolytes and renal function - assess at baseline, after 1-2 weeks, and periodically thereafter.
  • Clinical status - monitor for signs of heart-failure decompensation (e.g., weight gain, dyspnoea) and adjust therapy accordingly.
  • Routine visits - NICE recommends follow-up appointments every 3-6 months for stable patients, with more frequent checks if dose adjustments occur.

Storage and Handling

  • Store the pill at room temperature (15-30 °C), protected from moisture and light.
  • Keep the medication out of reach of children; use child-proof containers.
  • Do not use the product after the expiry date indicated on the packaging.
  • Dispose of unused tablets according to local pharmacy guidelines or NHS medication-return schemes.

Medication-Specific Glossary

Neprilysin inhibition
Blocking the enzyme neprilysin to increase circulating natriuretic peptides, which aid vasodilation and natriuresis.
Angiotensin II receptor blocker (ARB)
A drug class that prevents angiotensin II from binding to its type 1 receptor, lowering blood pressure and reducing cardiac workload.
Ejection fraction
The percentage of blood pumped out of the left ventricle with each heartbeat; reduced values indicate systolic heart failure.
Hyperkalaemia
Elevated potassium levels in the blood, which can affect heart rhythm and require medical monitoring.
Washout period
A drug-free interval (typically 36 hours for Entresto) required when switching from an ACE inhibitor to reduce the risk of angio-edema.

Medical Disclaimer

This article provides educational information about Entresto and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.

Information for Entresto is sourced from established medical standards and updated frequently. It is provided for general guidance and should be confirmed with a healthcare professional before use.
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