Accupril 20mg Tablets
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. You can take this medication with or without food, and it's best to take it at the same time every day. Continue taking your medication as directed by your doctor or healthcare provider, even if you're feeling well.
It's also important to stay hydrated by drinking plenty of non-caffeinated liquids, unless your doctor advises you to limit your fluid intake.
Storing and Disposing of Your Medication
To keep your medication effective and safe, store it at room temperature, protected from light, and in a dry place. Avoid storing it in a bathroom. Keep all medications in a secure location, out of the reach of children and pets. When you're finished with your medication or it's expired, dispose of it properly. Do not flush it down the toilet or pour it down the drain unless instructed to do so by your doctor or pharmacist. If you're unsure about how to dispose of your medication, consult with your pharmacist, who may be aware of drug take-back programs in your area.
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 the medication without consulting 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 further lower blood pressure.
- Maintain a healthy diet (low sodium), regular exercise, and manage stress to support blood pressure control.
- Inform your doctor or dentist that you are taking quinapril before any surgery or dental procedures.
Available Forms & Alternatives
Available Strengths:
Generic 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 medical attention immediately:
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
Severe stomach pain
Severe nausea or vomiting
Signs of liver problems, including:
+ Dark urine
+ Fatigue
+ Decreased appetite
+ Stomach pain or upset
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes (jaundice)
Signs of infection, such as:
+ Fever
+ Chills
+ Sore throat
Other Possible Side Effects
Like all medications, this drug can cause side effects. While many people may not experience any side effects or only minor ones, it's essential to discuss any concerns with your doctor. If you experience any of the following side effects or any other unusual symptoms, contact your doctor or seek medical attention:
Cough
* Dizziness
Reporting Side Effects
This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, contact 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) - Seek immediate medical attention.
- Difficulty breathing or swallowing - Seek immediate medical attention.
- Severe dizziness or fainting - Lie down and contact your doctor.
- Persistent dry cough - Inform your doctor, as this is a common side effect.
- Signs of infection like fever, chills, or sore throat - Contact your doctor.
- Yellowing of the skin or eyes (jaundice), dark urine, or severe stomach pain - Contact your doctor.
Before Using This Medicine
It is essential to inform your doctor about the following:
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 the symptoms that occurred.
If you have a history of angioedema, a severe and potentially life-threatening reaction characterized by symptoms such as:
+ Swelling of the hands, face, lips, eyes, tongue, or throat
+ Difficulty breathing
+ Trouble swallowing
+ Unusual hoarseness
If you are undergoing any of the following medical treatments:
+ Apheresis
+ Dialysis
+ Hemofiltration
If you are currently taking any of the following medications:
+ Aliskiren
+ Azilsartan
+ Candesartan
+ Eprosartan
+ Irbesartan
+ Losartan
+ Olmesartan
+ Telmisartan
+ Valsartan
* If you have taken a medication containing sacubitril within the last 36 hours
Please note that this is not an exhaustive list of all potential interactions. It is crucial to discuss all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, as well as any health problems, with your doctor and pharmacist. They will help determine if it is safe to take this medication with your other medications and health conditions. Do not initiate, stop, or adjust the dosage of any medication without consulting your doctor.
Precautions & Cautions
Inform all of your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.
Precautions to Ensure Your Safety
To avoid accidents, do not drive or perform tasks that require alertness until you know how this medication affects you. When standing up from a sitting or lying down position, rise slowly to minimize the risk of dizziness or fainting. Be cautious when climbing stairs.
Monitoring Your Condition
Check your blood pressure as directed by your healthcare provider. Additionally, have your blood work checked as instructed by your doctor and discuss the results with them.
Interactions with Other Substances
If you are taking a salt substitute containing potassium, a potassium-sparing diuretic, or a potassium product, consult with your doctor. Similarly, if you are on a low-salt or salt-free diet, discuss this with your doctor.
Special Considerations
If you have high blood pressure and are taking this medication, talk to your doctor before using over-the-counter (OTC) products that may increase blood pressure, such as cough or cold medications, diet pills, stimulants, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, and certain natural products or aids. Also, consult with your doctor before consuming alcohol.
Staying Safe in Various Situations
In hot weather or during physical activity, be careful to avoid dehydration by drinking plenty of fluids. If you experience excessive sweating, fluid loss, vomiting, or diarrhea, inform your doctor, as these conditions may lead to low blood pressure.
Effectiveness and Potential Risks
It is essential to note that this medication may be less effective in lowering blood pressure in Black patients. In some cases, an additional medication may be necessary. Discuss any concerns with your doctor.
Rare but Serious Reaction
A severe and potentially life-threatening reaction called angioedema has been reported. The risk of angioedema may be higher in Black patients.
Breastfeeding
If you are breastfeeding, consult with your doctor to discuss any potential risks to your baby.
Overdose Information
Overdose Symptoms:
- Severe hypotension (low blood pressure)
- Dizziness
- Lightheadedness
- Fainting
- Tachycardia (rapid heart rate)
- Bradycardia (slow heart rate)
- Renal failure
What to Do:
Call 911 or Poison Control (1-800-222-1222) immediately. Treatment is supportive, including intravenous fluid administration to restore blood pressure. Quinaprilat can be removed by hemodialysis.
Drug Interactions
Contraindicated Interactions
- Aliskiren (in patients with diabetes or renal impairment (GFR < 60 mL/min/1.73 m2))
- Sacubitril/Valsartan (Entresto) - concomitant use or within 36 hours of switching 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.
- Lithium - increased serum lithium levels and toxicity.
- NSAIDs (Nonsteroidal Anti-inflammatory Drugs) - may reduce antihypertensive effect and increase risk of renal impairment.
- mTOR inhibitors (e.g., sirolimus, everolimus, temsirolimus) - increased risk of angioedema.
- Neprilysin inhibitors (e.g., sacubitril) - increased risk of angioedema.
- Gold (sodium aurothiomalate) - nitritoid reactions (facial flushing, nausea, vomiting, hypotension) reported rarely.
Moderate Interactions
- Diuretics (thiazide or loop) - increased risk of symptomatic hypotension, especially with initial doses.
- Other antihypertensive agents - additive hypotensive effects.
- Insulin and oral hypoglycemic agents - increased risk of hypoglycemia.
- Trimethoprim - increased risk of hyperkalemia.
- Cyclosporine - increased risk of hyperkalemia and renal dysfunction.
Minor Interactions
- Antacids (e.g., magnesium hydroxide, aluminum hydroxide) - may decrease quinapril absorption (administer at least 1 hour apart).
Monitoring
Baseline Monitoring
Rationale: To establish baseline and assess efficacy.
Timing: Prior to initiation.
Rationale: To assess renal function, as ACE inhibitors can cause acute renal dysfunction, especially in patients with pre-existing renal impairment or bilateral renal artery stenosis.
Timing: Prior to initiation.
Rationale: To assess baseline potassium levels, as ACE inhibitors can cause hyperkalemia.
Timing: Prior to initiation.
Rationale: To assess for neutropenia/agranulocytosis, a rare but serious adverse effect, especially in patients with renal impairment or collagen vascular disease.
Timing: Prior to initiation (consider, especially in high-risk patients).
Routine Monitoring
Frequency: Regularly, especially during dose titration and periodically thereafter.
Target: <130/80 mmHg (or individualized target)
Action Threshold: Symptomatic hypotension, or BP consistently outside target range.
Frequency: Within 1-2 weeks of initiation or dose increase, then periodically (e.g., every 3-6 months) or as clinically indicated.
Target: Stable, within normal limits or acceptable baseline variation.
Action Threshold: Increase in SCr >30% from baseline, or significant decline in GFR.
Frequency: Within 1-2 weeks of initiation or dose increase, then periodically (e.g., every 3-6 months) or as clinically indicated.
Target: 3.5-5.0 mEq/L
Action Threshold: K+ >5.5 mEq/L or symptomatic hyperkalemia.
Frequency: Periodically, if clinically indicated (rare reports of hepatic failure).
Target: Within normal limits.
Action Threshold: Significant elevation of liver enzymes or signs of hepatic dysfunction.
Symptom Monitoring
- Persistent dry cough
- Swelling of face, lips, tongue, or throat (angioedema)
- Dizziness or lightheadedness (hypotension)
- Fatigue or weakness
- Signs of infection (fever, sore throat) - rare, but indicative of neutropenia
- Yellowing of skin or eyes, dark urine, abdominal pain (signs of liver dysfunction)
Special Patient Groups
Pregnancy
Contraindicated in pregnancy. ACE inhibitors can cause fetal and neonatal morbidity and death when administered to pregnant women. If pregnancy is detected, discontinue Accupril as soon as possible.
Trimester-Specific Risks:
Lactation
Quinapril and its active metabolite quinaprilat are present in human milk. While levels are low, caution should be exercised. The American Academy of Pediatrics considers ACE inhibitors compatible with breastfeeding. Monitor breastfed infant for hypotension and adverse effects.
Pediatric Use
Safety and effectiveness have not been established in pediatric patients. Use is generally not recommended.
Geriatric Use
No overall differences in effectiveness or safety have been observed between elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. Start with lower doses (e.g., 5 mg once daily) and titrate cautiously, especially if renal function is impaired.
Clinical Information
Clinical Pearls
- First-dose hypotension can occur, especially in patients who are volume-depleted (e.g., on diuretics, salt-restricted diet, or with heart failure). Consider discontinuing diuretics 2-3 days prior to initiation if possible, or starting with a very low dose.
- Persistent dry cough is a common side effect of ACE inhibitors, occurring in up to 20% of patients. It is usually non-productive and resolves within days to weeks after discontinuation. If bothersome, consider switching to an ARB.
- Angioedema is a rare but life-threatening side effect. Patients should be educated on the signs (swelling of face, lips, tongue, throat) and instructed to seek immediate medical attention if it occurs.
- Monitor renal function and serum potassium regularly, especially in patients with pre-existing renal impairment, heart failure, or those on potassium-sparing diuretics or supplements.
- Quinapril is a prodrug that requires hepatic activation. While severe hepatic impairment is rare, monitor liver function if clinically indicated.
Alternative Therapies
- Angiotensin Receptor Blockers (ARBs) e.g., Valsartan, Losartan, Candesartan (often used if ACEI cough occurs)
- Beta-blockers e.g., Metoprolol, Carvedilol
- Calcium Channel Blockers (CCBs) e.g., Amlodipine, Diltiazem
- Thiazide diuretics e.g., Hydrochlorothiazide
- Loop diuretics e.g., Furosemide (for heart failure with fluid overload)
- Direct Renin Inhibitors e.g., Aliskiren (less common, contraindicated with ACEI in certain populations)