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What is quinapril? What is quinapril used for?
Quinapril belongs in a class of drugs called angiotensin converting enzyme (ACE) inhibitors. ACE inhibitors are used for treating high blood pressure and heart failure and for preventing kidney failure due to high blood pressure and diabetes.
Other drugs in this class are enalapril (Vasotec), ramipril (Altace), captopril (Capoten), fosinopril (Monopril), benazepril (Lotensin), lisinopril (Zestril, Prinivil), moexipril (Univasc) and trandolapril (Mavik). ACE is important because it produces angiotensin II. Angiotensin II contracts the muscles of the arteries in the heart and the rest of the body, narrowing the arteries and thereby elevating blood pressure. In the kidney, the narrowing caused by angiotensin II decreases blood flow and increases the arterial filtration pressure in the kidney. ACE inhibitors such as quinapril lower blood pressure by inhibiting the formation of angiotensin II, thereby relaxing the arterial muscles and enlarging the arteries. This increases the flow of blood and oxygen to the heart so that it can pump blood more efficiently.
The enlargement of the arteries elsewhere in the body also makes it easier for the heart to pump blood. This is particularly beneficial when there is heart failure. In the kidneys ACE inhibitors increase blood flow and reduce the filtration pressure in the kidneys.
Quinapril was approved by the FDA in November 1991.
What brand names are available for quinapril?
Is quinapril available as a generic drug?
Do I need a prescription for quinapril?
What are the side effects of quinapril?
Quinapril is generally well tolerated, and side effects are usually mild and transient. A dry, persistent cough has been reported with the use of quinapril and other ACE inhibitors. Coughing resolves after discontinuing the medication.
Other side effects include:
- abdominal pain,
- loss of taste,
- loss of appetite,
- nausea, vomiting,
- fainting, and
- numbness or tingling in the hands or feet.
Quinapril and other ACE inhibitors may also cause kidney failure and increased levels of potassium in the blood. The most serious but very rare side effects are liver failure and angioedema (swelling of lips and throat).
What is the dosage for quinapril?
The recommended dose for treating high blood pressure is 10-80 mg a day as a single dose or in two doses every 12 hours. Start at 5 to 20 mg daily. The initial dose for heart failure is 5 mg every 12 hours and the maintenance dose is 20 to 40 mg a day as a single dose or in two divided doses every 12 hours. Quinapril should be taken on an empty stomach because food reduces its absorption.
Which drugs or supplements interact with quinapril?
: The use of ACE inhibitors with potassium supplements, salt substitutes or diuretics (for example, spironolactone [Aldactone]) that increase potassium in the blood may lead to excessive potassium levels in the body. Potassium levels should be closely monitored whenever ace inhibitors are use in combination with these drugs.
Patients receiving diuretics or are dehydrated or have low blood sodium may experience excessive reduction in blood pressure when quinapril is started. Stopping the diuretic or increasing salt intake prior to taking quinapril may prevent this excessive reduction in blood pressure.
There have been reports that aspirin and other nonsteroidal antiinflammatory drugs (NSAIDs) such as ibuprofen (Advil, Children's Advil/Motrin, Medipren, Motrin, Nuprin, PediaCare Fever, etc.), indomethacin (Indocin, Indocin-SR), and naproxen (Anaprox, Naprelan, Naprosyn, Aleve) may reduce the effects of ACE inhibitors.
Combining quinapril or other ACE inhibitors with non-steroidal anti-inflammatory drugs (NSAIDs) in patients who are elderly, volume-depleted (including those on diuretic therapy), or with poor kidney function may result in reduced kidney function, including kidney failure. These effects usually are reversible.
Nitritoid reactions (symptoms include facial flushing, nausea, vomiting and hypotension) may occur when injectable gold (sodium aurothiomalate), used in the treatment of rheumatoid arthritis, is combined with ACE inhibitors, including quinapril.
Quinapril should not be combined with aliskiren (Tekturna) because the combination of both drugs increases blockade of angiotensin leading to low blood pressure, increased blood potassium, and possible kidney damage.
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Is quinapril safe to take if I'm pregnant or breastfeeding?
Angiotensin converting enzyme inhibitors, including quinapril, are very harmful to the fetus and, therefore, should not be used during pregnancy.
What else should I know about quinapril?
What preparations of quinapril are available?
Tablets: 5, 10, 20 and 40 mg
How should I keep quinapril stored?
Tablets and solutions should be stored at room temperature 15 C to 30 C (59 F to 86 F).
Quinapril (Accupril) is a medication prescribed to use in combination with other medications to treat high blood pressure and heart failure. Side effects, drug interactions, storage, dosage, and pregnancy safety information should be reviewed prior to taking any medication.
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Related Disease Conditions
Kidney (Renal) Failure
Kidney failure can occur from an acute event or a chronic condition or disease. Prerenal kidney failure is caused by blood loss, dehydration, or medication. Some of the renal causes of kidney failure include sepsis, medications, rhabdomyolysis, multiple myeloma, and acute glomerulonephritis. Post renal causes of kidney failure include bladder obstruction, prostate problems, tumors, or kidney stones.Treatment options included diet, medications, or dialysis.
12 Congestive Heart Failure (CHF) Symptoms, Stages, Causes, and Life Expectancy
Congestive heart failure (CHF) refers to a condition in which the heart loses the ability to function properly. Heart disease, high blood pressure, diabetes, myocarditis, and cardiomyopathies are just a few potential causes of congestive heart failure. Signs and symptoms of congestive heart failure may include fatigue, breathlessness, palpitations, angina, and edema. Physical examination, patient history, blood tests, and imaging tests are used to diagnose congestive heart failure. Treatment of heart failure consists of lifestyle modification and taking medications to decrease fluid in the body and ease the strain on the heart. The prognosis of a patient with congestive heart failure depends on the stage of the heart failure and the overall condition of the individual.
Diabetes (Type 1 and Type 2)
Diabetes is a chronic condition characterized by high levels of sugar (glucose) in the blood. The two types of diabetes are referred to as type 1 (insulin dependent) and type 2 (non-insulin dependent). Symptoms of diabetes include increased urine output, thirst, hunger, and fatigue. Treatment of diabetes depends on the type.
Diabetes Treatment (Type 1 and Type 2 Medications and Diet)
The major goal in treating diabetes is controlling elevated blood sugar without causing abnormally low levels of blood sugar. Type 1 diabetes is treated with: insulin, exercise, and a diabetic diet. Type 2 diabetes is first treated with: weight reduction, a diabetic diet, and exercise. When these measures fail to control the elevated blood sugar, oral medications are used. If oral medications are still insufficient, insulin medications are considered.
High Blood Pressure (Hypertension) Signs, Causes, Diet, and Treatment
High blood pressure (hypertension) is a disease in which pressure within the arteries of the body is elevated. About 75 million people in the US have hypertension (1 in 3 adults), and only half of them are able to manage it. Many people do not know that they have high blood pressure because it often has no has no warning signs or symptoms. Systolic and diastolic are the two readings in which blood pressure is measured. The American College of Cardiology released new guidelines for high blood pressure in 2017. The guidelines now state that blood normal blood pressure is 120/80 mmHg. If either one of those numbers is higher, you have high blood pressure. The American Academy of Cardiology defines high blood pressure slightly differently. The AAC considers 130/80 mm Hg. or greater (either number) stage 1 hypertension. Stage 2 hypertension is considered 140/90 mm Hg. or greater. If you have high blood pressure you are at risk of developing life threatening diseases like stroke and heart attack.REFERENCE: CDC. High Blood Pressure. Updated: Nov 13, 2017.
High Blood Pressure Treatment (Natural Home Remedies, Diet, Medications)
High blood pressure (hypertension) means high pressure (tension) in the arteries. Treatment for high blood pressure include lifestyle modifications (alcohol, smoking, coffee, salt, diet, exercise), drugs and medications such as ACE inhibitors, angiotensin receptor blockers, beta blockers, diuretics, calcium channel blockers (CCBs), alpha blockers, clonidine, minoxidil, and Exforge.
A heart attack happens when a blood clot completely obstructs a coronary artery supplying blood to the heart muscle. A heart attack can cause chest pain, heart failure, and electrical instability of the heart.
Febrile seizures, or convulsions caused by fever, can be frightening in small children or infants. However, in general, febrile seizures are harmless. Febrile seizure is not epilepsy. It is estimated that one in every 25 children will have at least one febrile seizure. It is important to know what to do to help your child if he/she has a febrile seizure. Some of the features of a febrile seizure include: losing consciousness, shaking, moving limbs on both sides of the body, lasts 1-2 minutes. Less commonly, a febrile seizure may only affect one side of the body.
Pregnancy and Drugs (Prescription and OTC)
Taking prescription medications or over-the-counter drugs or supplements should be discussed with your doctor. There are some medications that have been found to cause no problems in pregnancy, however, medications such as Accutane for acne, should never be taken during pregnancy.
Heart Attack Prevention
Heart disease and heart attacks can be prevented by leading a healthy lifestyle with diet, exercise, and stress management. Symptoms of heart attack in men and women include chest discomfort and pain in the shoulder, neck, jaw, stomach, or back. Women experience the same symptoms as men; however, they also may experience: Extreme fatigue Pain in the upper abdomen Dizziness Fainting Leading a healthy lifestyle with a heart healthy low-fat diet, and exercise can help prevent heart disease and heart attack.
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Medications & Supplements
- ACE Inhibitors (Side Effects, List of Names, Uses, and Dosage)
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- Congestive Heart Failure Medications
- captopril (Capoten)
- ramipril (Altace)
- benazepril (Lotensin HTC)
- Drug Interactions
- enalapril (Vasotec, Epaned)
- trandolapril (Mavik)
- lisinopril and hydrochlorothiazide (Zestoretic, Prinzide)
- fosinopril sodium, Monopril
- benazepril and hydrochlorothiazide (Lotensin HCT)
- enalapril and hydrochlorothiazide (Vaseretic)
- captopril and hydrochlorothiazide (Capozide)
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.