Heart Failure Medication Management: A Comprehensive Guide for Patients

Heart failure requires a strict treatment regimen, where medication plays a crucial role in controlling symptoms and improving quality of life. Understanding the medications being used, adhering to the correct dosage, and managing side effects are key to helping heart failure patients live healthier lives. This article will be a useful guide to help you use medication effectively.

1. What You Need to Know About Heart Failure and Medication Treatment

1.1. What is Heart Failure?

Heart failure is a condition where the heart cannot pump enough blood to meet the body's needs. This can occur due to a weakened heart (systolic heart failure) or a stiffened heart (diastolic heart failure), leading to symptoms such as shortness of breath, fatigue, and edema [1].

1.2. Importance and Goals of Medication in Heart Failure Treatment

• Reduce heart failure symptoms, hospital readmissions, and mortality: Prescribed medications aim to control uncomfortable symptoms like shortness of breath, edema, and fatigue, thereby reducing the frequency of emergency hospitalizations and extending the lifespan of patients [5].
• Increase physical activity, improve quality of life: In addition to saving lives, medications also help patients enhance their physical activity, perform daily tasks more easily, and generally improve their quality of life [5].
• Individualized chronic heart failure treatment: Heart failure treatment often involves a multi-drug regimen, combining various drug classes to achieve optimal effectiveness [9].

2. Main Drug Classes in Heart Failure Treatment

2.1. Angiotensin-Converting Enzyme Inhibitors (ACEI) or Angiotensin Receptor Blockers (ARB)

• Uses: Angiotensin-converting enzyme inhibitors (ACEIs) help dilate blood vessels, lower blood pressure, and prevent water retention, protecting the heart and kidneys [1]. Angiotensin receptor blockers (ARBs) have similar effects but cause less coughing [2].
• Common Side Effects:
  • Orthostatic hypotension, dizziness [8].
  • Persistent dry cough (common with ACEIs) [8].
  • Itching, rash [8].
  • Angioedema (swelling of the face, lips, tongue, throat, potentially causing difficulty breathing – this is a serious side effect requiring immediate emergency care) [8].
  • Kidney dysfunction (especially at the start of treatment or in patients with pre-existing kidney disease) [8].
  • Hyperkalemia (high potassium levels) [8].
• What patients should do to minimize side effects:
  • Take medication at the same time each day: Maintain a regular medication schedule [8].
  • Change positions slowly: To reduce the risk of dizziness, stand up slowly when changing positions and avoid excessive strenuous exercise, especially during the initial treatment period [8].
  • Attend follow-up appointments: Adhere to scheduled follow-up appointments so the doctor can monitor kidney function and electrolyte levels (potassium) in the blood [8].

2.2. Angiotensin Receptor-Neprilysin Inhibitors (ARNI)

• Uses: This is a newer class of drugs that combines the effects of ARBs with neprilysin inhibition, enhancing the body's natural natriuretic peptides, offering superior benefits over ACEi/ARB in heart failure with reduced ejection fraction [3, 5]. ARNIs help improve left ventricular function, reduce cardiac remodeling, and improve quality of life [4].
• Common Side Effects:
  • Orthostatic hypotension, dizziness [8].
  • Persistent dry cough (less common than with ACEIs) [8].
  • Itching, rash [8].
  • Angioedema (swelling of the face, lips, tongue, throat, potentially causing difficulty breathing – this is a serious side effect requiring immediate emergency care) [8].
  • Kidney dysfunction (especially at the start of treatment or in patients with pre-existing kidney disease) [8].
  • Hyperkalemia (high potassium levels) [8].
• What patients should do to minimize side effects:
  • Take medication at the same time each day: Maintain a regular medication schedule [8].
  • Change positions slowly: To reduce the risk of dizziness, stand up slowly when changing positions and avoid excessive strenuous exercise, especially during the initial treatment period [8].
  • Attend follow-up appointments: Adhere to scheduled follow-up appointments so the doctor can monitor kidney function and electrolyte levels (potassium) in the blood [8].

2.3. Beta-blockers

• Uses: Beta-blockers help slow the heart rate and lower blood pressure, thereby reducing the workload on the heart [6]. Some beta-blockers proven effective in heart failure include carvedilol, extended-release metoprolol, and bisoprolol [7].
• Common Side Effects:
  • Fatigue, dizziness (especially when starting or increasing the dose) [6].
  • Slow heart rate, low blood pressure [6].
  • Cold hands and feet [6].
  • Shortness of breath or bronchospasm (in individuals with respiratory conditions like asthma, COPD) [6].
  • Masking of hypoglycemia symptoms in diabetic patients [6].
  • Sleep disturbances, depression, sexual dysfunction [6].
• What patients should do to minimize side effects:
  • Take medication on time: Take medication at the same time each day to maintain stable drug levels in the blood [6].
  • Change positions slowly: To avoid dizziness due to orthostatic hypotension, stand up or change positions slowly [6].
  • Monitor heart rate and blood pressure: Check heart rate and blood pressure regularly as instructed by your doctor. Report immediately to your doctor if your heart rate is too slow (typically below 50-60 bpm) or blood pressure is too low [6].
  • Diabetic patients: Need to monitor blood sugar more carefully as beta-blockers can mask symptoms of hypoglycemia [6].
  • Do not stop medication abruptly: Abruptly stopping beta-blockers can lead to serious cardiovascular events [6].

2.4. Mineralocorticoid Receptor Antagonists (MRA)

• Uses: MRAs like spironolactone or eplerenone help protect the heart from the harmful effects of the hormone aldosterone, prevent water retention, and can retain potassium [9, 10, 11]. They help improve heart function and reduce the risk of hospitalization [12, 13].
• Important Side Effect: Hyperkalemia [9, 10].
  • The most significant side effect of MRAs is an increase in blood potassium levels. Hyperkalemia can be dangerous and cause heart problems [9].
• Signs of Hyperkalemia: Patients should pay attention to the following signs and report them to their doctor immediately if experienced:
  • Fatigue, muscle weakness [9].
  • Numbness or tingling in hands and feet [9].
  • Cardiovascular issues: irregular heartbeat, fast or slow heart rate [9].
  • Nausea, vomiting, or shortness of breath in some cases [9].
  • In severe cases, there is a risk of cardiac arrest if not treated promptly [9].

2.5. Sodium-Glucose Cotransporter 2 Inhibitors (SGLT2i)

• Uses: Sodium-glucose cotransporter 2 inhibitors (SGLT2i): Originally used for diabetes, they are now proven highly effective in treating heart failure, with or without diabetes [14, 15]. They help reduce the risk of hospitalization and mortality from heart failure [18].
• Precautions when using medication:
  • Temporary discontinuation: Patients need to inform their doctor to stop the medication during fasting, severe vomiting, acute infections (such as urinary tract infections, respiratory infections), or when preparing for surgery [16]. This helps avoid the risk of diabetic ketoacidosis (DKA) or other complications.
  • Drink enough water: Ensure adequate hydration to prevent dehydration, especially in hot weather or during physical activity [16].
• When to inform your doctor? Please inform your doctor if you experience the following symptoms:
  • Genital itching, frequent urination, painful urination. These could be signs of urinary tract infection or genital fungal infection, which are possible side effects of this drug class [16].
  • Other unusual symptoms such as nausea, vomiting, abdominal pain, shortness of breath, unusual fatigue, which could be signs of ketoacidosis [16].

2.6. Diuretics

• Uses: Diuretics help the body eliminate excess salt and fluid, especially useful when patients have congestion symptoms (edema, shortness of breath due to pulmonary fluid retention) [8].

2.7. Other Medications (Digoxin, Ivabradine, Hydralazine combined with Nitrate)

• Digoxin: Used to help the heart beat more strongly and slow the heart rate in some heart failure patients, especially those with rapid irregular heartbeats (atrial fibrillation) [20].
• Ivabradine: Helps slow the heart rate in heart failure patients with normal sinus rhythm but rapid heart rate and persistent symptoms despite optimal treatment with other medications [20, 22]. Ivabradine is recommended in NICE guidelines for the treatment of heart failure with reduced ejection fraction [20].
• Hydralazine combined with Nitrate: An option for patients who cannot tolerate ACEIs, ARNIs, and ARBs, or for heart failure patients of African American descent [21].

3. Principles of Safe and Effective Medication Use

3.1. Adherence to Dosage and Schedule

Taking medication at the correct dosage and at the same time each day is crucial for maintaining stable drug levels in the blood, ensuring optimal treatment effectiveness [8]. Using a pill organizer or setting phone reminders can help you adhere more easily.

3.2. Do Not Arbitrarily Stop or Change Medication

Never arbitrarily stop or change medication dosages without your doctor's instructions, even if you feel better. This can worsen heart failure or lead to dangerous complications [8].

3.3. Monitor Side Effects and Report Promptly

Patients need to proactively monitor for potential side effects and report any unusual symptoms to their doctor or pharmacist immediately [8].

3.4. Drug and Food Interactions

Some medications and foods can interact with heart failure medications, reducing effectiveness or increasing side effects. Always inform your doctor about all medications you are taking, including over-the-counter drugs, supplements, and herbal remedies [8].

3.5. Management of Co-existing Conditions

Many heart failure patients have co-existing conditions such as diabetes, high blood pressure, and chronic kidney disease. Good management of these conditions also plays an important role in controlling heart failure [19].

4. Screening and Treatment of Iron Deficiency in Heart Failure Patients

4.1. Why is Iron Deficiency Screening Necessary?

Iron deficiency is common in heart failure patients, even without anemia. This condition can worsen heart failure symptoms, reduce exercise capacity, and impair quality of life [23]. Therefore, iron deficiency screening is very important.

4.2. Methods of Treating Iron Deficiency

Treatment for iron deficiency in heart failure patients often involves intravenous iron supplementation. This has been shown to improve symptoms, exercise capacity, and quality of life for patients [23].

5. Regular Monitoring and Follow-up Appointments

5.1. Indicators to Monitor at Home

Heart failure patients should monitor certain indicators at home such as daily weight (to detect fluid retention), blood pressure, heart rate, and symptoms like shortness of breath and edema [8]. Record these indicators to report to your doctor during follow-up visits.

5.2. Importance of Follow-up Appointments

Regular follow-up appointments with a cardiologist are essential to assess treatment effectiveness, detect complications early, and adjust medication dosages or treatment regimens as needed [8].

5.3. Role of a Multidisciplinary Healthcare Team

Heart failure treatment is a complex process that requires the collaboration of multiple specialties such as cardiologists, pharmacists, nutritionists, and physical therapists to achieve the best possible outcomes for patients.

6. Prevention and Limitation of Risk Factors

6.1. Healthy Diet (Sodium Restriction)

Restricting sodium in the diet helps reduce fluid retention, lessen the burden on the heart, and control blood pressure [7]. Prioritize fresh foods, green vegetables, fruits, and limit processed foods.

6.2. Appropriate Physical Activity

Regular and appropriate exercise (as advised by your doctor) helps improve heart function, enhance endurance, and improve quality of life [7].

6.3. Avoid Stimulants

Smoking, alcohol consumption, and the use of other stimulants can damage the heart and worsen heart failure. Quitting these habits is very important [7].

6.4. Preventive Vaccinations

Annual influenza and pneumococcal vaccinations are recommended for heart failure patients to reduce the risk of respiratory infections, which can cause acute heart failure [17].

7. When to See a Doctor Immediately?

Heart failure patients need to seek urgent medical attention if they experience the following signs [17]:

• Sudden worsening of shortness of breath, especially at rest or when lying down.
• Rapid weight gain (e.g., more than 2 kg in a few days) due to fluid retention.
• Significant increase in swelling of the legs, ankles, or abdomen.
• New or worsening chest pain.
• Dizziness, fainting, or feeling very weak.
• Fast, irregular heartbeats or palpitations.
• Persistent dry cough, coughing up pink or bloody sputum.

8. Frequently Asked Questions (FAQ)

1. Can heart failure be completely cured? Heart failure is a chronic condition that usually cannot be completely cured but can be effectively managed with medication and lifestyle changes. The goals of treatment are to reduce symptoms, improve quality of life, and extend lifespan [1].
2. Can I stop taking medication on my own if I feel better? Absolutely not. Arbitrarily stopping heart failure medication can quickly worsen the condition, leading to serious complications and hospitalization [8]. Always consult your doctor before changing any medication.
3. Does diet and lifestyle affect the effectiveness of heart failure treatment? Yes. A healthy diet (low in salt, low in saturated fat), regular exercise (as prescribed by your doctor), maintaining a healthy weight, and quitting smoking and alcohol play a very important role in supporting heart failure treatment and improving prognosis [7].
4. How can I remember to take my medication on time every day? You can use aids such as setting alarms on your phone, using a daily/weekly pill organizer, or asking family members to remind you. Keeping a medication schedule is also an effective method [8].
5. What should I do if I miss a dose? If you miss a dose, take it as soon as you remember, unless it is almost time for your next dose. In that case, skip the missed dose and continue your regular schedule. Do not double the dose to make up for a missed one. If you are unsure, contact your doctor or pharmacist (Hotline 028 3952 5295) for advice [8].

9. References

• [1] Herman, L. L., Padala, S. A., Ahmed, I., & Bashir, K. (2025). Angiotensin-Converting Enzyme Inhibitors (ACEI) - StatPearls. NCBI Bookshelf. Truy cập: 2026-01-22.
• [2] Patel, P., & Launico, M. V. (2025). Angiotensin II Receptor Blockers (ARB) - StatPearls. NCBI Bookshelf. Truy cập: 2026-01-22.
• [3] Patel, P., Nicolas, D., & Reed, M. (2025). Sacubitril-Valsartan - StatPearls. NCBI Bookshelf. Truy cập: 2026-01-22.
• [4] Charuel, E., Menini, T., Bedhomme, S., et al. (2021). Benefits and adverse effects of sacubitril/valsartan in patients with chronic heart failure: A systematic review and meta‐analysis. Pharmacol Res Perspect, 9(5), e00844. Truy cập: 2026-01-22.
• [5] Koçak, A., Aydin, S., Alibaşiç, H., Çiçek, M., & Ekici, B. (2023). Long-term effects of angiotensin receptor neprilysin inhibitor therapy in heart failure patients with reduced ejection fraction: A retrospective cohort study. Medicine (Baltimore), 102(43), e35589. Truy cập: 2026-01-22.
• [6] Farzam, K., & Jan, A. (2025). Beta Blockers - StatPearls. NCBI Bookshelf. Truy cập: 2026-01-22.
• [7] Johri, N., Matreja, P. S., Maurya, A., Varshney, S., & Smritigandha. (2023). Role of β-blockers in Preventing Heart Failure and Major Adverse Cardiac Events Post Myocardial Infarction. Curr Cardiol Rev, 19(4), e110123212591. Truy cập: 2026-01-22.
• [8] Reed, B. N., & Sueta, C. A. (2015). A Practical Guide for the Treatment of Symptomatic Heart Failure with Reduced Ejection Fraction (HFrEF). Curr Cardiol Rev, 11(1), 23–32. Truy cập: 2026-01-22.
• [9] Jhund, P. S., & Packer, M. (2024). Mineralocorticoid receptor antagonists in heart failure. The Lancet. Truy cập: 2026-01-22.
• [10] Zhang, Y., & Chen, M. (2025). Mineralocorticoid receptor antagonists in heart failure. PMC. Truy cập: 2026-01-22.
• [11] Carlino, I., & Vizzardi, E. (2025). Current Application of Mineralocorticoid Antagonist (MRA) in Heart Failure. PMC. Truy cập: 2026-01-22.
• [12] Phelan, D., Thavendiranathan, P., & Collier, P. (2012). Aldosterone antagonists improve ejection fraction and functional capacity independently of functional class. a meta-analysis of randomised controlled trials. Heart, 98(23), 1693–1700. Truy cập: 2026-01-22.
• [13] Rogers, J. K., McMurray, J. J. V., & Pocock, S. J. (2012). Eplerenone in patients with systolic heart failure and mild symptoms.Analysis of Repeat Hospitalizations. Circulation, 126(19), 2317–2323. Truy cập: 2026-01-22.
• [14] Padda, I. S., Mahtani, A. U., & Parmar, M. (2025). Sodium-Glucose Transport 2 (SGLT2) Inhibitors - StatPearls. NCBI Bookshelf. Truy cập: 2026-01-22.
• [15] Talha, K. M., Anker, S. D., & Butler, J. (2023). SGLT-2 Inhibitors in Heart Failure: A Review of Current Evidence. Int J Heart Fail, 5(2), 82–90. Truy cập: 2026-01-22.
• [16] Sooltan, I., Bulugahapitiya, S., Dzhakhangirli, F., & Haque, R. (2024). Correspondence: Important safety aspects in SGLT2 inhibitor prescribing in heart failure. Br J Cardiol, 31(3), 036. Truy cập: 2026-01-22.
• [17] Heidenreich, P. A., Bozkurt, B., Aguilar, D., et al. (2022). 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines. Circulation, 145(18), e895-e1032. Truy cập: 2026-01-22.
• [18] Solomon, S. D., McMurray, J. J., Claggett, B., et al. (2022). Dapagliflozin in heart failure with mildly reduced or preserved ejection fraction. N Engl J Med, 387(12), 1089–1098. Truy cập: 2026-01-22.
• [19] Levin, A., Ahmed, S. B., Carrero, J. J., et al. (2024). Executive summary of the KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease: known knowns and known unknowns. Kidney Int, 105(4), 684–701. Truy cập: 2026-01-22.
• [20] NICE (2026). Chronic heart failure in adults: diagnosis and management. NICE Clinical Guidelines, No. 106. Truy cập: 2026-01-22.
• [21] NICE (2026). Chronic heart failure: core treatments for .... Truy cập: 2026-01-22.
• [22] Aronow, W. S. (2016). Update of treatment of heart failure with reduction of left .... PMC. Truy cập: 2026-01-22.
• [23] Graham, F. J. (2024). Treating iron deficiency in patients with heart failure. Heart. Truy cập: 2026-01-22.

The information provided is for reference purposes only and should not be considered medical advice. Please consult a doctor for detailed consultation.