- A Visual Guide to Heart Disease
- Medical Illustrations of the Heart Image Collection
- Take the Heart Disease Quiz!
Does Pronestyl (procainamide) cause side effects?
- atrial fibrillation and flutter,
- ventricular tachycardia, and
- premature atrial and ventricle heartbeats.
Three actions are responsible for its ability to correct disturbances of rhythm and prevent their recurrence. Pronestyl
- decreases the speed of electrical conduction through the heart muscle,
- prolongs the electrical phase during which the heart's muscle cells can be electrically stimulated, and
- prolongs the recovery period during which the heart muscle cells cannot be stimulated.
The brand name Pronesty is no longer available in the U.S.
Common side effects of Pronestyl include
Serious side effects of Pronestyl include
A syndrome resembling lupus erythematosus, including
- Combining Pronestyl with thioridazine, pimozide, quinolone antibiotics, tricyclic antidepressants, and ziprasidone may increase the risk of abnormal heart beats because these drugs may also prolong the recovery period of the heart.
- Concurrent administration of Pronestyl with other anti-arrhythmics can result in additive or antagonistic effects on the heart.
It also is unknown if Pronestyl can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Pronestyl should be given to a pregnant woman only if clearly needed.
What are the important side effects of Pronestyl (procainamide)?
Common reactions include
Severe reactions include
- abnormal heartbeats,
- heart arrest, and
- blood disorders.
A severe reduction in white blood cell count occurs relatively rarely with procainamide therapy and is more common with the sustained-release preparations. This side effect has caused death.
For this reason, patients on sustained-release procainamide get a complete blood count test (CBC) every 2 weeks for the first 3 months of treatment. A syndrome resembling lupus erythematosus, including
The lupus-like syndrome is reversible after stopping the drug.
Rarely, procainamide can cause
- hallucinations, and
Pronestyl (procainamide) side effects list for healthcare professionals
Hypotension following oral PA administration is rare. Hypotension and serious disturbances of cardiorhythm such as ventricular asystole or fibrillation are more common after. Second degree heart block has been reported in 2 of almost 500 patients taking PA orally.
A lupus erythematosus-like syndrome of arthralgia, pleural or abdominal pain, and some-times arthritis, pleural effusion, pericarditis, fever, chills, myalgia, and possibly related hematologic or skin lesions (see below) is fairly common after prolonged PA administration, perhaps more often in patients who are slow acetylators.
While some series have reported less than 1 in 500, others have reported the syndrome in up to 30 percent of patients on long term oral PA therapy. If discontinuation of PA does not reverse the lupoid symptoms, corticosteroid treatment may be effective.
Elevated Liver Enzymes
Elevations of transaminase with and without elevations of alkaline phosphatase and bilirubin have been reported. Some patients have had clinical symptoms (e.g., malaise, right upper quadrant pain). Deaths from liver failure have been reported.
What drugs interact with Pronestyl (procainamide)?
If other antiarrhythmic drugs are being used, additive effects on the heart may occur with PA administration, and dosage reduction may be necessary.
Anticholinergic drugs administered concurrently with PA may produce additive antivagal effects on A-V nodal conduction, although this is not as well documented for PA as for quinidine.
Patients taking PA who require neuromuscular blocking agents such as succinylcholine may require less than usual doses of the latter, due to PA effects on reducing acetylcholine release.
Drug/Laboratory Test Interactions
Suprapharmacologic concentrations of lidocaine and meprobamate may inhibit fluorescence of PA and NAPA, and propranolol shows a native fluorescence close to the PA/NAPA peak wavelengths, so that tests which depend on fluorescence measurement may be affected.
Pronestyl (procainamide) is an antiarrhythmic drug used to treat abnormal heart rhythms such as tachycardias, atrial fibrillation and flutter, ventricular tachycardia, and premature atrial and ventricle heartbeats. Common side effects of Pronestyl include diarrhea, nausea, vomiting, rash, low blood pressure, itching, flushing, and slow heartbeat. It also is unknown if Pronestyl can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Pronestyl should be given to a pregnant woman only if clearly needed. Pronestyl is secreted in breast milk. Mothers should discontinue breastfeeding while taking Pronestyl.
Multimedia: Slideshows, Images & Quizzes
Heart Disease: Causes of a Heart Attack
Heart disease prevention includes controlling risk factors like diet, exercise, and stress. Heart disease symptoms in women may...
Atrial Fibrillation: Heart Symptoms, Diagnosis, & AFib Treatment
AFib symptoms like heart racing, fluttering, and irregular heart beat may be caused by heart disease, obesity, alcohol use,...
Heart Disease: Symptoms, Signs, and Causes
What is heart disease (coronary artery disease)? Learn about the causes of heart disease. Symptoms of heart disease include chest...
Am I Having a Heart Attack? Symptoms of Heart Disease
Heart attacks symptoms vary greatly for men and women, from anxiety and fatigue to nausea and sweating. Learn the warning signs...
Atrial Fibrillation (A-Fib) Quiz: Test Your Medical IQ
Learn the causes, symptoms, and treatments of the common heart abnormality known as atrial fibrillation (A-fib).
Heart Disease Quiz: Test Your Medical IQ
Take our Heart Disease Quiz to get answers and facts about high cholesterol, atherosclerosis prevention, and the causes,...
Cardiac Arrest: What You Should Know
Cardiac arrest is a serious medical emergency that requires immediate medical care. Use this WebMD slideshow to know whether you...
Heart Disease: Foods That Are Bad for Your Heart
If you want a healthy ticker, there are some foods you’ll want to indulge in every now and then only. Find out which ones and how...
Atrial Fibrillation (AFib): Tips for Living with Atrial Fibrillation
AFib symptoms like heart racing, fluttering, and irregular heart beat may be caused by heart disease, obesity, alcohol use,...
Related Disease Conditions
Heart disease (coronary artery disease) occurs when plaque builds up in the coronary arteries, the vessels that supply blood to the heart. Heart disease can lead to heart attack. Risk factors for heart disease include: Smoking High blood pressure High cholesterol Diabetes Family history Obesity Angina, shortness of breath, and sweating are just a few symptoms that may indicate a heart attack. Treatment of heart disease involves control of heart disease risk factors through lifestyle changes, medications, and/or stenting or bypass surgery. Heart disease can be prevented by controlling heart disease risk factors.
Heart Disease: Sudden Cardiac Death
Second Source WebMD Medical Reference
Atrial Flutter (Symptoms, Causes, ECG, and Treatments)
Atrial flutter is a problem with the atria of the heart. In atrial flutter the atria of the heart rapidly and repeatedly beat due to an anomaly in the electrical system of the heart. It is a type of arrhythmia and can be dangerous because complications can develop easily. Signs and symptoms of atrial flutter include near fainting, palpitations, mild shortness of breath, and fatigue. While the exact cause of atrial flutter is not clearly understood, it's most likely related to your health, what medical conditions you certainly have, poor diet, lack of exercise, and drinking too much alcohol. Atrial flutter is diagnosed by physical examination, medical history, and a sawtooth ECG wave pattern.
Atrial Flutter vs. Atrial Fibrillation (What Are the Differences?)
Atrial flutter and atrial fibrillation (AFib) are two types of a heart problem called atrial tachycardia. Both of these conditions involve the heart's electrical activity, but they are not the same disease. Both diseases are serious and need medical treatment. Common symptoms of these diseases are similar and include: Fatigue Blurry vision Lightheadedness Palpitations Feeling like you may faint Serious symptoms of both conditions are similar and include: Fainting Sweating Severe shortness of breath Chest pain Atrial flutter and AFib are heart conditions that require medical diagnosis (ECG) and treatment by a doctor or other medical health-care professional.
Atrial Fibrillation (AFib) Treatment Drugs
Atrial fibrillation (AFib) is a heart rhythm disorder that causes irregular and often rapid heartbeat. The medications to treat AFib include beta-blockers, blood thinners, and heart rhythm drugs. Atrial fibrillation drugs can cause serious side effects like seizures, vision changes, shortness of breath, fainting, other abnormal heart rhythms, excessive bleeding while coughing or vomiting, blood in the stool, and bleeding into the brain.
Atrial Fibrillation vs. Ventricular Fibrillation (AFib vs VFib Symptoms, ECG Strips)
Atrial fibrillation (AF or AFib) is an abnormality in the heart rhythm which involves irregular and often rapid beating of the heart. Symptoms may include heart palpitations, dizziness, fainting, fatigue, shortness of breath, and chest pain. Atrial fibrillation treatment may include medication or procedures like cardioversion or ablation to normalize the heart rate. Atrial fibrillation (AFib) and ventricular fibrillation (VFib) are problems with the heart that cause abnormal heart rhythms. Causes of these heart conditions include, heart disease, drugs and medications, excessive alcohol consumption, high cholesterol, advancing age, a diet that contains high levels of animal meat (fat), high blood pressure, stress, stimulants like caffeine, nicotine. Ventricular fibrillation is the more serious of the conditions because if it isn't treated immediately the person will likely die. Symptoms of AFib are confusion, anxiety, fatigue, a fluttering in the chest, and the feeling that you may pass out or faint. Atrial fibrillation is treated with medications, cardioversion therapy, and surgery. If a person with ventricular fibrillation does not seek medical help immediately they will mostly likely suffer from sudden cardiac arrest or sudden death.
Stress and Heart Disease
The connection between stress and heart disease is not clear. Stress itself may be a risk factor, or high levels of stress may make risk factors for heart disease worse. The warning signs of stress can be physical, mental, emotional, or behavioral. Reducing stressors in an individuals life not only can lead to a more productive life, but may also decrease the risk for heart disease and causes of heart disease.
POTS (POT Syndrome, Postural Orthostatic Tachycardia Syndrome)
POT syndrome (POTS, postrual orthostatic tachycardia syndrome) is a nervous system disorder that causes lightheadedness and fainting when a person stands up. Treatment may include increasing blood volume and regulating circulatory problems that are responsible for the disorder.
Atrial Fibrillation Symptoms (AFib Warning Signs)
Atrial fibrillation or AFib is a type of hear rhythm abnormality. Early warning signs and symptoms of atrial fibrillation include chest pain, palpitations, shortness of breath, and lightheadedness. Treatment for atrial fibrillation includes medical procedures, surgery, and medication.
Paroxysmal Supraventricular Tachycardia (PSVT)
Paroxysmal supraventricular tachycardia (PSVT) is an abnormal conduction of electricity in particular areas of the heart. PSVT was referred to at one time as paroxysmal atrial tachycardia or PAT, however, the term PAT is reserved for as specific heart condition. Symptoms of PSVT include weakness, shortness of breath, chest pressure, lightheadedness, and palpitations. PSVT is treated with medications or procedures that return the heart to its normal electrical pattern.
Atrial Fibrillation (AFib, AF)
Atrial fibrillation (AF or AFib) is an abnormality in the heart rhythm, which involves irregular and often rapid beating of the heart. Symptoms may include heart palpitations, dizziness, fainting, fatigue, shortness of breath, and chest pain. Atrial fibrillation treatment may include medication or procedures like cardioversion or ablation to normalize the heart rate.
Heart Disease in Women
Heart disease in women has somewhat different symptoms, risk factors, and treatment compared to heart disease in men. Many women and health professionals are not aware of the risk factors for heart disease in women and may delay diagnosis and treatment. Lifestyle factors such as diet, exercise, tobacco use, overweight/obesity, stress, alcohol consumption, and depression influence heart disease risk in women. High blood pressure, high cholesterol, and diabetes also increase women's risk of heart disease. Electrocardiogram (EKG or ECG), stress-ECG, endothelial testing, ankle-brachial index (ABI), echocardiogram, nuclear imaging, electron beam CT, and lab tests to assess blood lipids and biomarkers of inflammation are used to diagnose heart disease. Early diagnosis and treatment of heart disease in women saves lives. Heart disease can be prevented and reversed with lifestyle changes.
Congenital Heart Defects
Congenital heart defects are heart problems that are present at birth. Genetics may play a role in some heart defects. Symptoms can range from nonexistent to severe and life-threatening. Fatigue, rapid breathing, and decreased blood circulation are a few possible symptoms of congenital heart defects. Many cases do not require any treatment. Procedures using catheters and surgery may be used to repair severe heart defects.
Smoking and Heart Disease
Smoking increases the risk of heart disease in women and men. Nicotine in cigarettes decrease oxygen to the heart, increases blood pressure, blood clots, and damages coronary arteries. Learn how to quit smoking today, to prolong your life.
Heart Disease Treatment in Women
Heart disease treatment in women should take into account female-specific guidelines that were developed by the American Heart Association. Risk factors and symptoms of heart disease in women differ from those in men. Treatment may include lifestyle modification (diet, exercise, weight management, smoking cessation, stress reduction), medications, percutaneous intervention procedure (PCI), and coronary artery bypass grafting (CABG). Heart disease is reversible with treatment.
What are the Most Common Causes of Atrial Fibrillation?
Atrial fibrillation (AF) is an abnormal heart rhythm characterized by an irregular and fast heartbeat. The upper chambers of the heart (atria) beat chaotically, and can cause pooling and clotting of blood in the atria, instead of it emptying into the lower chamber (ventricles). AF can lead to stroke, heart failure, blood clots, and heart-related complications. Atrial fibrillation is classified into three types: Paroxysmal atrial fibrillation, persistent atrial fibrillation, and long-standing persistent atrial fibrillation.
Treatment & Diagnosis
- Heart Disease FAQs
- Atrial Fibrillation A-Fib FAQs
- Beta Carotene Supplements Not the Answer for Cancer or Heart Disease
- Heart Disease Risks Reduced With Running
- Heart Risks - Reduced By Walking & Vigorous Exercise
- Heart Disease In Women
- Ramipril, Heart Disease, Stroke & Diabetes
- Heart Atrial Fibrillation - Bill Bradley
- Heart Disease & Stroke - Progress
- Heart Disease Stroke and Diabetes
- Exercise Therapy in Type 2 Diabetes - Part 1
- Heart Disease - Lessons Learned From Pitcher's Early Death
- Heart Disease: Antioxidant Supplements and Women
- Heart Disease Risk and C-reactive Protein (CRP)
- Hormone Therapy and and Heart Disease in Women
- What are The Complications of Rheumatic Heart Disease?
- Can I Still Get Heart Disease if I Take Blood Pressure Medication?
- How Serious Is Atrial Fibrillation?
- Does Hashimoto's Affect Heart Disease and Osteoporosis?
- Heart Disease Prevention in Women
- Diabetes Update Day 4 - Heart Disease and Diabetes
- Heart Healthy Diet: Hypertension & Heart Disease
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.
Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.