Digoxin Side Effects


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- This is lesson n# 12 in "A DRUG IN BRIEF" Series. In this video I'm gonna discuss almost all you need to know about Digoxin
- In 3 minutes you'll learn about:
- Digoxin Mechanism Of Action, uses, dosage, side effects , contraindications and precautions
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Cathy covers the following cardiovascular medications in this video: Cardiac Glycosides (Digoxin), Class I Antidysrhythmics (sodium channel blockers), and Class II Antidysrhythmics (beta blockers).
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0:00 What To Expect
0:15 Cardiac Glycosides
0:31 Digoxin
0:45 Mode of Action
1:04 Side Effects
1:41 Administration
1:56 Nursing Care
3:01 Class I Antidysrhythmics
3:38 Side Effects/ Black Box Warning
4:12 Nursing Care
4:29 Class II Antidysrhythmics
4:57 Side Effects
5:28 Beta 1 vs. Non Selective Blockers
6:14 What’s Next?
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Cardiac glycosides like Digoxin are positive inotropic drugs that help give the heart a more forceful contraction, or in other words, they help increase the contractility of the heart muscle (the myocardium). Digoxin and other cardiac glycosides like Milrinone, help to increase cardiac output (C.O.), fancy words for helping the heart to pump out more oxygen rich blood to the body.
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Time Stamps:
0:18 - Why am I taking this medication?
0:42 - How do I take this medication?
1:27 - What if I miss a dose?
1:42 - What side effects should I be aware of?
2:27 - What should I tell my Doctor before I start taking Digoxin?
3:17 - How should I store this medication?
3:32 - Quiz Time!
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What Are Digoxin's Side Effects? In this informative video, we will cover the side effects of digoxin, a medication commonly prescribed for various heart conditions. Understanding the potential side effects is essential for anyone using this treatment, as it can help you manage your health effectively. We’ll discuss both the common and serious side effects associated with digoxin, providing you with the necessary information to recognize symptoms and when to seek medical assistance.
From gastrointestinal issues to heart-related complications, we aim to give you a comprehensive overview of what to expect while taking digoxin. Additionally, we will highlight the importance of monitoring your health and communicating with your healthcare provider about any concerning symptoms.
This video is designed to be a helpful resource for patients and caregivers navigating the complexities of heart medication. Knowledge is power, and being informed can significantly impact your overall well-being. Join us for this essential discussion, and don’t forget to subscribe to our channel for more helpful information on diseases, medical conditions, and treatments.
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Lanoxin contains the active ingredient digoxin, which is a type of medicine called a cardiac glycoside.
Lanoxin is used to treat fast and irregular heart rhythms, such as atrial fibrillation or flutter. It’s also used to treat heart failure.
Digoxin works directly on the heart muscle. It slows down the rate at which the heart beats, and also increases the force with which the heart muscle contracts with every heartbeat. This makes each heartbeat more efficient at pumping blood around the body.
If you would like to find out more visit:
http://www.lynchspharmacy.com/....medicine/lanoxin-dig
http://www.lynchspharmacy.com
You can also visit Lynch's Pharmacy in Broadale, Maryborough Hill, Cork.
You should always consult your doctor if you have any concerns before taking any medication.
Thank you for watching!


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In this lecture Professor Kristin Beach, MSN, BSN, RN will be presenting on Digoxin (Lanoxin). To see what we will be talking about, please see the chapters below in the table of contents. We hope you enjoy this lecture and be sure to support us below!
Table of Contents:
0:00 Lab
0:22 Digoxin - Class, Indication, MOA
4:42 Defining Inotropic, Chronotropic, Dromotropic
5:49 Side Effects & Toxicity
10:12 Patient Education & Nursing Interventions
12:47 Comment, Like, SUBSCRIBE!
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If you struggle with knowing what key facts to memorize about medications, I am here to help you. This video will go over the main drug facts about the drug, digoxin, in a fun and visual way with memory tips and a quick review. It includes drug names, memory tips, indications, side effects, contraindications, mechanisms of action, and counseling points.
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Digoxin
Generic Name: digoxin
Trade Name: Lanoxin
Indication: CHF, A-fib, A-flutter Action Positive inotropic effect (increases force of myocardial contraction), prolongs refractory period, ↓ conduction through SA and AV nodes. Essentially digoxin is given to increase cardiac output and slow the rate.
Therapeutic Class: antiarrhythmic, inotropics
Pharmacologic Class: digitalis glycosides
Nursing Considerations:
Excreted by kidneys
Assess patient for hypersensitivity
Contraindicated with uncontrolled ventricular arryhtmias
Hypokalemia increase risk for toxcicity
Hypercalcemia ↑ risk for toxicity
Use caution with diuretic use as they may cause electrolyte abnormalities that can lead to toxicity
Assess patient for cardiac arrythmias including bradycardia
Signs of toxicity include vision changes (blurred vision, yellow, green vision disturbances)
Monitor pulse rate for 1 full minute prior to dosing patient (hold for pulse less than 60)


In this video I break down the medication Digoxin. I discuss the side effects, nurse's role and patient education. I also discuss Digoxin toxicity and what can be done about it.
Got a video request? Let me know in the comments below.
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Chapters
0:00 Intro
0:23 What does it do?
1:12 Uses
1:47 Side Effects
2:36 Nursing Care
3:54 Patient Education
5:50 Toxicity
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**Mistake in video: hyPOkalemia (low potassium) can exaggerate dig toxicity. Someone missed this in editing**
Digoxin is a an old drug originally derived from the purple foxglove plant. Today we have newer, safer, and more efficacious medications but digoxin still has a place in a doctor's armamentarium. Xanthopsia is a rare side effect that causes a your vision to have a yellow hue. Is it possible that Vincent Van Gogh suffered from digoxin toxicity?
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How does Digoxin Work? Digoxin is a class 5 antiarrhythmic used to help control irregular heart rhythm such as A-Fib .
Time Stamps:
Intro 00:00
Breakdown 00:04
Digoxin Overview 00:09
Mechanism of Action 00:47
When to use 02:30
Dosing & Adjustments 03:44
Side effects 06:09
Quick Summary 07:34
Short Quiz 09:01
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How does Digoxin reduce heart rate? Find out how Digoxin works in the heart and why it has an effect on heart rate.
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Digoxin is a cardiac glycoside used in the treatment of mild to moderate heart failure and for ventricular response rate control in chronic atrial fibrillation.
In this video, let’s find found:
What is digoxin?
What is digoxin used for?
Contraindication
What are the side effects of taking digoxin?
How does digoxin work?
How to use digoxin?
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Welcome to Day 7 of the N-World Review pharmacology series! 🌟
In this video, we’re discussing digoxin. 📚💊 Check out some important points about its effects, signs of toxicity, and nursing interventions:
Key Points Covered:
Digoxin slows heart rate but increases myocardial contraction.
Early and late symptoms of digoxin toxicity.
Monitoring serum digoxin levels (0.5 to 0.8 ng/ml) and watching out for hypokalemia.
Teaching clients about potassium-rich foods like fresh fruits, dried fruits, and vegetables.
Importance of checking the apical pulse for 1 full minute before administering.
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Mechanisms of actions of ACE inhibitors, Angiotensin receptor blockers (ARBs), Beta-blockers, Aldosterone receptor antagonists (ARAs), Digoxin, Ivabradine, Angiotensin Receptor-Neprilysin Inhibitor, ARNIs (sacubitril/valsartan), Diuretics, Vasodilators. Role of RAAS, sympathetic system and natriuretic peptide system in pathophysiology of Congestive heart failure (CHF) and rational for treatment of HF.
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Heart failure is when the heart is unable to pump effectively, called systolic heart failure; or unable to fill properly, called diastolic heart failure. In both cases, blood output is reduced. Ejection fraction is reduced in systolic heart failure, but typically preserved in diastolic heart failure.
The pathophysiology of heart failure involves a vicious cycle in which reduced cardiac output, as a compensatory response, activates the renin-angiotensin-aldosterone system (RAAS) and sympathetic system. However, these systems cause vasoconstriction, increase heart rate and blood pressure, making it even harder for the heart to pump. Increased aldosterone level also promotes ventricular remodeling, myocardial scarring, and vascular injury, worsening the disease.
On the other hand, the natriuretic peptide system is also activated. This system is protective to the heart. It promotes vasodilation, sodium and water excretion, and inhibits cardiac remodeling.
Most drugs used in heart failure therapy aim to inhibit RAAS and sympathetic activities, and/or promote the natriuretic system. Other drugs increase ventricular contractility or reduce water retention – a major heart failure symptom.
First-line therapy for patients with reduced ejection fraction typically includes an angiotensin-converting enzyme (ACE) inhibitor, and a beta-blocker.
- ACE inhibitors block the conversion of angiotensin-I to angiotensin-II in RAAS, thereby inhibiting RAAS activity. Common side effects include dry cough, headache, and hypotension. Rarely, ACE inhibitors may cause a swelling reaction known as angioedema.
- Angiotensin receptor blockers (ARBs) inhibit the effects of angiotensin-II. Their mechanism of action is similar to that of ACE inhibitors, but they do not usually cause a cough.
- Beta-blockers decrease heart rate by binding to β1-adrenergic receptor in the heart and blocking the sympathetic influences that act through these receptors. Adverse effects: hypotension, bradycardia and AV blocks.
- Vasodilators reduce blood pressure and are usually used for patients who cannot tolerate ACE inhibitors or ARBs.
- Diuretics are often prescribed to relieve fluid retention. Loop diuretics are most powerful and typically used for most patients. Thiazides are less effective, but they also have a vasodilation effect, and are thus preferred for patients with hypertension but only mild fluid retention.
- Aldosterone receptor antagonists block the action of aldosterone. Because aldosterone’s primary function is to promote sodium and water retention, and potassium excretion; aldosterone antagonists act as potassium-sparing diuretics. However, their effect in heart failure treatment is also attributed to the inhibition of aldosterone’s damaging impact on the heart and blood vessels.
- Digoxin increases cardiac contractility by inhibiting the sodium-potassium pump, causing intracellular sodium concentration to rise. This then leads to higher levels of intracellular calcium via the action of sodium-calcium exchanger. Higher calcium results in increased muscle contraction. Digoxin also decreases sympathetic activities, slowing down heart rate.
- Ivabradine slows the heart rate by inhibiting the “funny” channel responsible for spontaneous firing of the SA node. Adverse effects include bradycardia, atrial fibrillation, and vision problems.
- ARNIs are a new class of medications. ARNI therapy consists of a neprilysin inhibitor and an ARB.


Digoxin Toxicity - Symptoms, Diagnosis & Treatment | Credihealth
Digoxin toxicity is a potentially serious condition that can occur when there are excessive levels of the medication digoxin in the body. Digoxin is a cardiac glycoside primarily used to treat various heart conditions, including heart failure, atrial fibrillation, and other supraventricular tachycardias.
The signs and symptoms of digoxin toxicity may include:
Cardiac effects:
Bradycardia (slow heart rate)
Irregular heartbeats (arrhythmias)
Cardiac conduction disturbances
Gastrointestinal effects:
Nausea and vomiting
Abdominal pain
Diarrhea
Anorexia
Neurological effects:
Visual disturbances (blurred vision, yellow-green halos)
Confusion
Drowsiness
Headache
Dizziness
Weakness
Other effects:
Electrolyte imbalances (hypokalemia, hypercalcemia)
Increased risk of digoxin toxicity in patients with kidney dysfunction
The risk of digoxin toxicity increases with factors such as:
Excessive dosage of digoxin
Impaired kidney function (reduced clearance of digoxin)
Electrolyte imbalances (hypokalemia, hypercalcemia, hypomagnesemia)
Drug interactions (e.g., with diuretics, antiarrhythmics, antibiotics)
Advanced age
Low lean body mass
If digoxin toxicity is suspected, immediate medical attention is required. Treatment may involve discontinuing digoxin, administering digoxin-specific antibody fragments (Digibind) to bind and remove digoxin from the body, correcting electrolyte imbalances, and providing supportive care as needed.
Monitoring digoxin levels, adjusting dosages based on kidney function, and avoiding drug interactions are essential measures to prevent digoxin toxicity in patients receiving this medication.
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An overview of digoxin, a cardiac glycoside used for symptomatic treatment of chronic heart failure. It explains how digoxin works, the drug's role as an antiarrhythmic and its potential side effects, such as hyperkalemia and gastrointestinal symptoms.
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Digoxin nursing pharmacology NCLEX (cardiac glycosides) review on the mechanism of action, nursing implications, teaching, and digoxin toxicity.
Digoxin is a cardiac glycoside that helps the heart pump efficiently. It does this by inhibiting the normal function of the sodium-potassium pump.
This will alter how the heart contracts. In addition, this medication alters the rate of how fast/slow the heart beats and how fast/slow the impulses are conduction through the electrical conduction system.
Therefore, Digoxin creates the following actions on the heart: positive inotropic, negative chronotropic, and negative dromotropic actions
All of these actions together cause the heart to empty more efficiently and increase stroke volume. This will in turn increase cardiac output.
Digoxin nursing implications include: monitor for Digoxin toxicity (nausea, vomiting, anorexia, yellow-greenish halos in vision, and dysrhythmias), Digoxin toxicity can be caused from a low potassium level, high calcium level, or low magnesium level, the nurse also wants to measure the apical pulse for one full minute prior to administration
Teaching for this drug includes: how to monitor for toxicity, diet high in potassium if the patient if they are on a potassium-wasting drug, how to count the heart rate etc.
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Digitalis | Digoxin Clinical Uses and Adverse Effects
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Digoxin is used to treat heart failure and abnormal heart rhythms (arrhythmias). It helps the heart work better and it helps control your heart rate.
Digoxin is a medication used to manage and treat heart failure and certain arrhythmias, and abortion. It is in the cardiac glycoside class of drugs. This article outlines the indications, action, and contraindications for digoxin as a valuable agent in managing heart failure and certain arrhythmias
Digoxin is used to treat heart failure, usually along with other medications. It is also used to treat certain types of irregular heartbeat (such as chronic atrial fibrillation). Treating heart failure may help maintain your ability to walk and exercise and may improve the strength of your heart. Treating an irregular heartbeat can also improve your ability to exercise.Digoxin belongs to a class of medications called cardiac glycosides. It works by affecting certain minerals (sodium and potassium) inside heart cells. This reduces strain on the heart and helps it maintain a normal, steady, and strong heartbeat.
How to use Digoxin
Take this medication by mouth with or without food as directed by your doctor, usually once daily. If you are using the liquid form of this medication, carefully measure the dose using the dropper provided by the manufacturer. Do not use a household spoon because you may not get the correct dose.
Your body may not absorb this drug as well if you also eat foods that are high in fiber or if you take certain medications. Take this medication at least 2 hours before or after eating food products that are high in fiber (such as bran). If you are also taking cholestyramine, colestipol, or psyllium, wait at least 2 hours after taking your digoxin dose before taking any of these products. If you are taking antacids, kaolin-pectin, milk of magnesia, metoclopramide, sulfasalazine, or aminosalicylic acid, take them as far apart from your digoxin dose as possible. Ask your pharmacist if you are not sure when to take any of your medications.
The dosage of this medication is based on your medical condition, age, body weight, laboratory tests, and response to treatment.
Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time each day. Do not stop taking this medication without consulting your doctor. Some conditions may become worse when the drug is suddenly stopped.
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Digoxin (Digitalis or Cardiac glycosides include Digoxin, Digitoxin, Oubain) Mnemonic | Cardiology.
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Dr. Roger Seheult reviews key features of digoxin and how it relates to exam questions and clinical practice. Includes discussion on the digoxin mechanism of action and narrow therapeutic window, how antacids affect digoxin, and digoxin side effects and toxicity. This question is from the BoardVitals NAPLEX Question Bank.
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Digoxin nursing pharmacology (NCLEX) mnemonic covering mechanism of action, toxicity, and side effects.
Study this Digoxin Nursing Pharmacology mnemonic for NCLEX and other mnemonics with Pixorize.
Digoxin is a cardiac glycoside that works by increasing the strength of the heart’s contractions and slowing down the heart rate. It is used clinically to treat atrial fibrillation and heart failure. Digoxin has a narrow therapeutic range, and side effects are seen above dose levels of 2 ng/mL. The risk of toxicity is increased with hypokalemia, so patients should have their potassium levels monitored closely. The earliest sign of digoxin toxicity is GI distress, and later signs include bradycardia, vision changes, and arrhythmias. The apical pulse should be monitored for a full minute before administration, and the digoxin dose should not be given if the heart rate is less than 60 minutes beat per minute.
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In this episode, I discuss a medication known as digoxin (Toloxin).
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DIGOXIN SIDE EFFECTS
Digoxin is derived from foxglove (a flowering plant of the plant genus digitalis). According to the National Capital Poison Center, “all parts of the plant are poisonous, possibly even deadly, if swallowed.”
MECHANISM OF ACTION
Fundamentally, digoxin is a poison. It exerts its therapeutic effect by poisoning a cell membrane protein known as the sodium-potassium ATPase (Na+/K+ pump). When this pump is poisoned, sodium accumulates within the cell (the therapeutic target being cardiac muscle cells). Another cell membrane protein called the sodium-calcium exchanger normally exchanges intracellular calcium for extracellular sodium. However, when the concentration of sodium inside the cell is high (as is the case for someone taking digoxin), the sodium-calcium exchanger shuts down. The consequence? Calcium accumulates within the cardiac muscle cell, which causes the heart to contract more forcefully. This can be useful for patients with heart failure.
Digoxin also stimulates the vagus nerve, which has the effect of slowing the conduction of electrical impulses. For this reason, digoxin can also be used to treat atrial fibrillation.
SIDE EFFECTS
The probability that an individual will experience side effects from digoxin is roughly 1 in 5 (20%). Side effects tend to affect one of three systems: #1 cardiac conduction system (e.g., bradycardia, tachycardia, atrioventricular (AV) block, ventricular arrhythmia); #2 central nervous system (e.g., headache, weakness, dizziness, apathy, confusion, depression, anxiety, delirium, hallucinations); #3 gastrointestinal system (e.g., diarrhea, nausea/vomiting, abdominal pain, intestinal ischemia, intestinal hemorrhagic necrosis).
DIGOXIN TOXICITY
Digoxin is a “narrow therapeutic index drug,” meaning that the difference between a dose that will result in therapeutic failure and a dose that will cause life-threatening toxicity is very small. Somewhere in the middle (a very narrow window) is the therapeutic window. That’s what doctors are aiming for, and the thing is… it is slightly different in every patient. So, the doctor will consider the clinical response of the patient in conjunction with the serum concentration of digoxin to optimize the dose and avoid overt toxicity.
“Digoxin toxicity” is a condition characterized by nausea/vomiting, cardiovascular symptoms (e.g., cardiac arrhythmias), yellow-green visual color disturbances/halo effect, dizziness, and fatigue (Cummings et al.). The symptoms can vary from one patient to another. For instance, many elderly patients exhibit vague symptoms such as dizziness and fatigue, making the diagnosis more difficult. If toxicity is suspected, the physician will order a blood test to check the serum digoxin level. Digoxin toxicity is most likely to occur when the serum digoxin concentration exceeds 2.0 ng/mL.
DIGOXIN TOXICITY TREATMENTS
If digoxin toxicity does occur, treatment do exist. For instance, in the case of a large overdose, an antidote can be given (digoxin immune Fab), which is 80-90% effective in reversing digoxin toxicity. Despite the availability of this and other treatments, digoxin toxicity is a very serious condition. Consider the following quote: “When treated promptly, the outcomes are good, but any delay in treatment can lead to death” (Cummings et al.).
PROBABILITY OF DIGOXIN TOXICITY: 1-4%
In any given patient taking digoxin, the risk of digoxin toxicity is somewhere between 1 in 100 (1%) and 1 in 25 (4%). The risk rises with age. For instance, in those age greater than 40, the risk of toxicity is 1%; however, in those age greater than 85, the risk is closer to 4% (David et al.).
00:00 Introduction
00:18 Narrow therapeutic index
00:47 Theapeutic effects
01:03 Probability of side effects
01:29 Side effects
03:15 Digoxin toxicity
03:41 Digoxin toxicity: symptoms
04:35 Starry Night by Vincent Van Gogh
05:15 Digoxin toxicity: predisposing factors
06:13 Digoxin toxicity: risk by age
06:29 Digoxin toxicity: treatment
07:15 Digoxin drug interactions
08:10 Prevent arrhythmias after ablation
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Brief digoxin overview, dosage, uses and side effects
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