Enalapril 1mg/ml Oral Soln
Overview
What is this medicine?
How to Use This Medicine
To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely. Take your medication at the same time every day to establish a routine.
Continue taking your medication as directed by your doctor or healthcare provider, even if you start to feel better. It's essential to drink plenty of non-caffeinated liquids, unless your doctor advises you to limit your fluid intake.
When taking liquid doses, measure them accurately using the measuring device provided with your medication. If no device is included, ask your pharmacist for a suitable measuring tool to ensure you're taking the correct dose.
Storing and Disposing of Your Medication
Store your medication at room temperature, away from heat sources. Keep it in a dry place, avoiding storage in a bathroom. Do not freeze your medication.
What to Do If You Miss a Dose
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for a missed one.
Lifestyle & Tips
- Take medication exactly as prescribed, usually once or twice daily.
- Do not stop taking enalapril without talking to your doctor, even if you feel well.
- Avoid potassium supplements or salt substitutes containing potassium unless directed by your doctor.
- Limit alcohol intake as it can increase the blood pressure lowering effect.
- Maintain a healthy diet (low sodium), regular exercise, and manage stress as advised by your doctor.
- Report any swelling of the face, lips, tongue, or throat immediately to your doctor or seek emergency medical attention.
Available Forms & Alternatives
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
BLACK BOX WARNING
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek immediate medical attention:
Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of kidney problems, including:
+ Inability to pass urine
+ Changes in urine output
+ Blood in the urine
+ Sudden weight gain
Signs of high potassium levels, such as:
+ Abnormal heartbeat
+ Confusion
+ Weakness, lightheadedness, or dizziness
+ Feeling like passing out
+ Numbness or tingling
+ Shortness of breath
Severe dizziness or fainting
Persistent cough
Chest pain or pressure
Liver problems, which can be indicated by:
+ Dark urine
+ Fatigue
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes (jaundice)
Other Possible Side Effects
Like all medications, this drug can cause side effects. Many people may not experience any side effects or may only have mild ones. If you are bothered by any of the following side effects or if they persist, contact your doctor or seek medical help:
Dizziness
* Cough
Reporting Side Effects
This list is not exhaustive, and you may experience other side effects. If you have questions or concerns about side effects, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Swelling of the face, lips, tongue, or throat (angioedema)
- Difficulty breathing or swallowing
- Severe dizziness or fainting
- Persistent dry cough
- Yellowing of skin or eyes (jaundice)
- Signs of high potassium (e.g., muscle weakness, slow or irregular heartbeat)
- Signs of infection (fever, sore throat) - rare but serious
Before Using This Medicine
It is essential to inform your doctor about the following conditions to ensure safe treatment:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Describe the allergic reaction you experienced, including any symptoms that occurred.
Kidney disease, as this may affect how your body processes the medication.
A history of angioedema, a severe and potentially life-threatening reaction characterized by swelling of the hands, face, lips, eyes, tongue, or throat, difficulty breathing, swallowing problems, or unusual hoarseness.
If you are taking a medication containing aliskiren, especially if you have diabetes or kidney problems.
If you have taken a medication containing sacubitril within the last 36 hours.
If you are breastfeeding, as you should not breastfeed while taking this medication.
Special Considerations for Children:
If the patient is under 1 month of age, do not administer this medication, as it is not suitable for infants at this age.
If your child was born premature and has not yet reached the corrected age of 44 weeks, consult with your doctor before giving this medication.
Additional Important Information:
This list is not exhaustive, and it is crucial to inform your doctor and pharmacist about all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, as well as any health problems you have. This will help ensure that it is safe to take this medication with your other treatments. Never start, stop, or change the dose of any medication without consulting your doctor first.
Precautions & Cautions
When starting this medication, avoid driving and other activities that require alertness until you understand how it affects you. To minimize the risk of dizziness or fainting, get up slowly from a sitting or lying position, and be cautious when climbing stairs.
Follow your doctor's instructions for monitoring your blood pressure and having regular blood tests. If you are using a salt substitute containing potassium, a potassium-sparing diuretic, or a potassium product, consult your doctor. Additionally, if you are on a low-salt or salt-free diet, discuss this with your doctor.
There is a risk of developing low white blood cell counts with this medication, which can increase the chance of infection. This is more likely to occur in individuals with kidney problems, especially those with other underlying health conditions. If you experience symptoms of infection, such as fever, chills, or sore throat, contact your doctor immediately.
If you have high blood pressure and are taking this medication, consult your doctor before using over-the-counter products that may increase blood pressure, including cough and cold medications, diet pills, stimulants, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, and certain natural products or aids.
Discuss alcohol consumption with your doctor before drinking. Be cautious in hot weather or during physical activity, and drink plenty of fluids to prevent dehydration. If you experience excessive sweating, fluid loss, vomiting, or diarrhea, inform your doctor, as these conditions can lead to low blood pressure.
It is essential to note that this medication may be less effective in lowering blood pressure in Black patients. In some cases, additional medication may be necessary. If you have any questions or concerns, consult your doctor.
A rare but potentially life-threatening reaction called angioedema can occur with this medication. The risk of angioedema may be higher in Black patients.
Overdose Information
Overdose Symptoms:
- Severe hypotension (low blood pressure)
- Dizziness
- Lightheadedness
- Fainting
- Tachycardia (fast heart rate)
- Palpitations
- Renal failure
What to Do:
Call 911 or your local poison control center (1-800-222-1222 in the US) immediately. If the person has collapsed or is not breathing, call 911. Treatment is supportive, including IV fluids to restore blood pressure. Enalaprilat can be removed by hemodialysis.
Drug Interactions
Contraindicated Interactions
- Aliskiren (in patients with diabetes or renal impairment)
- Sacubitril/valsartan (Entresto) - concomitant use or within 36 hours of last dose of sacubitril/valsartan due to increased risk of angioedema.
Major Interactions
- Potassium-sparing diuretics (e.g., spironolactone, triamterene, amiloride) - increased risk of hyperkalemia.
- Potassium supplements - increased risk of hyperkalemia.
- NSAIDs (e.g., ibuprofen, naproxen) - may reduce antihypertensive effect and increase risk of renal impairment, especially in elderly or volume-depleted patients.
- Lithium - increased serum lithium levels and lithium toxicity.
- Trimethoprim - increased risk of hyperkalemia.
- mTOR inhibitors (e.g., sirolimus, everolimus, temsirolimus) - increased risk of angioedema.
- Neprilysin inhibitors (e.g., sacubitril) - increased risk of angioedema.
Moderate Interactions
- Diuretics (thiazide, loop) - may cause excessive hypotension, especially with initial doses.
- Antidiabetic agents (insulin, oral hypoglycemics) - enhanced glucose-lowering effect, increased risk of hypoglycemia.
- Gold (sodium aurothiomalate) - nitritoid reactions (facial flushing, nausea, vomiting, hypotension) reported rarely with concomitant injectable gold and ACE inhibitor therapy.
- Other antihypertensives - additive hypotensive effects.
Minor Interactions
- Alcohol - may enhance hypotensive effect.
Monitoring
Baseline Monitoring
Rationale: To establish baseline and guide initial dosing.
Timing: Prior to initiation
Rationale: To assess baseline renal function, as enalapril is renally eliminated and can affect renal function.
Timing: Prior to initiation
Rationale: To assess baseline potassium levels, as enalapril can cause hyperkalemia.
Timing: Prior to initiation
Routine Monitoring
Frequency: Regularly, especially after dose changes and during titration, then periodically (e.g., monthly for first few months, then every 3-6 months).
Target: <130/80 mmHg (general target, individualized)
Action Threshold: Persistent hypotension (e.g., symptomatic or SBP <90 mmHg); inadequate BP control.
Frequency: Within 1-2 weeks of initiation or dose increase, then periodically (e.g., every 3-6 months or as clinically indicated). More frequently in patients with pre-existing renal impairment or on concomitant nephrotoxic drugs.
Target: Stable or within acceptable limits (e.g., <30% increase from baseline)
Action Threshold: Significant increase in SCr (e.g., >30% from baseline or >0.5 mg/dL acute rise), especially if progressive.
Frequency: Within 1-2 weeks of initiation or dose increase, then periodically (e.g., every 3-6 months or as clinically indicated). More frequently in patients with renal impairment, diabetes, or on concomitant potassium-sparing agents.
Target: 3.5-5.0 mEq/L
Action Threshold: Hyperkalemia (>5.5 mEq/L), especially if symptomatic or rapidly rising.
Symptom Monitoring
- Persistent dry cough
- Swelling of face, lips, tongue, throat (angioedema)
- Difficulty breathing or swallowing
- Dizziness, lightheadedness, fainting (hypotension)
- Signs of hyperkalemia (e.g., muscle weakness, irregular heartbeat)
- Signs of infection (e.g., fever, sore throat) - rare, but can indicate neutropenia
Special Patient Groups
Pregnancy
Contraindicated in the second and third trimesters of pregnancy due to risk of fetal injury and death. Use in the first trimester is generally discouraged due to potential risks.
Trimester-Specific Risks:
Lactation
Enalapril and enalaprilat are present in human milk in low concentrations. Generally considered compatible with breastfeeding, especially for full-term, healthy infants, but monitor infant for hypotension.
Pediatric Use
Used for hypertension and heart failure in children. Dosing is weight-based and requires careful titration. Renal function should be closely monitored, especially in infants and those with pre-existing renal impairment. Oral solution is particularly useful for accurate dosing in this population.
Geriatric Use
Start with lower doses and titrate slowly due to increased likelihood of decreased renal function and potential for greater sensitivity to hypotensive effects. Monitor renal function and potassium closely.
Clinical Information
Clinical Pearls
- Enalapril is a prodrug; its active form, enalaprilat, is responsible for its therapeutic effects.
- The oral solution (Epaned) is particularly useful for pediatric patients or adults who have difficulty swallowing tablets, allowing for precise dose adjustments.
- A persistent dry cough is a common side effect of ACE inhibitors, occurring in up to 20% of patients, and often leads to discontinuation. It typically resolves within days to weeks after stopping the medication.
- Angioedema is a rare but life-threatening side effect. Patients should be educated on symptoms and instructed to seek immediate medical attention if it occurs.
- Hyperkalemia is a risk, especially in patients with renal impairment, diabetes, or those taking potassium-sparing diuretics or potassium supplements.
- First-dose hypotension can occur, particularly in patients who are volume-depleted (e.g., on high-dose diuretics, heart failure patients). Consider administering the first dose at bedtime or under medical supervision.
Alternative Therapies
- Other ACE inhibitors (e.g., lisinopril, ramipril, captopril)
- Angiotensin Receptor Blockers (ARBs) (e.g., losartan, valsartan, candesartan) - often used if ACEI-induced cough occurs.
- Beta-blockers (e.g., metoprolol, carvedilol)
- Calcium Channel Blockers (e.g., amlodipine, nifedipine)
- Diuretics (e.g., hydrochlorothiazide, furosemide)
- Direct Renin Inhibitors (e.g., aliskiren - limited use)