Digoxin showed no genotoxic potential in in vitro studies (Ames test and mouse lymphoma). No data are available on the carcinogenic potential of digoxin, nor have studies been conducted to assess its potential to affect fertility.
Two 12-week, double-blind, placebo-controlled studies enrolled 178 (RADIANCE trial) and 88 (PROVED trial) adult patients with NYHA Class II or III heart failure previously treated with oral digoxin, a diuretic, and an ACE inhibitor (RADIANCE only) and randomized them to placebo or treatment with DIGOXIN Tablets. Both trials demonstrated better preservation of exercise capacity in patients randomized to DIGOXIN. Continued treatment with DIGOXIN reduced the risk of developing worsening heart failure, as evidenced by heart failure-related hospitalizations and emergency care and the need for concomitant heart failure therapy.
DIG Trial of DIGOXIN in Patients with Heart Failure
The Digitalis Investigation Group (DIG) main trial was a 37-week, multicenter, randomized, double-blind mortality study comparing digoxin to placebo in 6800 adult patients with heart failure and left ventricular ejection fraction less than or equal to 0.45. At randomization, 67% were NYHA class I or II, 71% had heart failure of ischemic etiology, 44% had been receiving digoxin, and most were receiving a concomitant ACE inhibitor (94%) and diuretics (82%). As in the smaller trials described above, patients who had been receiving open-label digoxin were withdrawn from this treatment before randomization. Randomization to digoxin was again associated with a significant reduction in the incidence of hospitalization, whether scored as number of hospitalizations for heart failure (relative risk 75%), risk of having at least one such hospitalization during the trial (RR 72%), or number of hospitalizations for any cause (RR 94%). On the other hand, randomization to digoxin had no apparent effect on mortality (RR 99%, with confidence limits of 91-107%).
Digoxin has also been studied as a means of controlling the ventricular response to chronic atrial fibrillation in adults. Digoxin reduced the resting heart rate, but not the heart rate during exercise.
In 3 different randomized, double-blind trials that included a total of 315 adult patients, digoxin was compared to placebo for the conversion of recent-onset atrial fibrillation to sinus rhythm. Conversion was equally likely, and equally rapid, in the digoxin and placebo groups. In a randomized 120-patient trial comparing digoxin, sotalol, and amiodarone, patients randomized to digoxin had the lowest incidence of conversion to sinus rhythm, and the least satisfactory rate control when conversion did not occur.
In at least one study, digoxin was studied as a means of delaying reversion to atrial fibrillation in adult patients with frequent recurrence of this arrhythmia. This was a randomized, double-blind, 43-patient crossover study. Digoxin increased the mean time between symptomatic recurrent episodes by 54%, but had no effect on the frequency of fibrillatory episodes seen during continuous electrocardiographic monitoring.
DIGOXIN Tablets have “LANOXIN” on one side.
They are supplied by State of Florida DOH Central Pharmacy as follows:
|NDC||Strength||Quantity/Form||Color||Source Prod. Code|
|53808-1006-1||0.125 MG||30 Tablets in a Blister Pack||YELLOW||49884-514|
Store at 25°C (77°F); excursions permitted to 15 to 30°C (59 to 86°F) in a dry place and protect from light. Keep out of reach of children.
- Advise patients that digoxin is a cardiac glycoside used to treat heart failure and heart arrhythmias.
- Instruct patients to take this medication as directed by their physician.
- Advise patients that many drugs can interact with DIGOXIN. Instruct patients to inform their doctor and pharmacist if they are taking any over the counter medications, including herbal medication, or are started on a new prescription.
- Advise patient that blood tests will be necessary to ensure that their DIGOXIN dose is appropriate for them.
- Advise patients to contact their doctor or a health care professional if they experience nausea, vomiting, persistent diarrhea, confusion, weakness, or visual disturbances (including blurred vision, green-yellow color disturbances, halo effect) as these could be signs that the dose of DIGOXIN may be too high.
- Advise parents or caregivers that the symptoms of having too high DIGOXIN doses may be difficult to recognize in infants and pediatric patients. Symptoms such as weight loss, failure to thrive in infants, abdominal pain, and behavioral disturbances may be indications of digoxin toxicity.
- Suggest to the patient to monitor and record their heart rate and blood pressure daily.
- Instruct women of childbearing potential who become or are planning to become pregnant to consult a physician prior to initiation or continuing therapy with DIGOXIN.
LANOXIN is a registered trademark of GlaxoSmithKline
Par Pharmaceutical Companies, Inc.
Spring Valley, NY 10977
Manufactured by DSM Pharmaceuticals, Inc.
Greenville, NC 27834
This Product was Repackaged By:
State of Florida DOH Central Pharmacy
104-2 Hamilton Park Drive
Tallahassee, FL 32304
Label Image for 53808-1006 0.125mgLabel Image for 0.125mg
|DIGOXIN digoxin tablet|
|Labeler — State of Florida DOH Central Pharmacy (829348114)|
|State of Florida DOH Central Pharmacy||829348114||repack (53808-1006)|
Revised: 01/2015 State of Florida DOH Central Pharmacy
All MedLibrary.org resources are included in as near-original form as possible, meaning that the information from the original provider has been rendered here with only typographical or stylistic modifications and not with any substantive alterations of content, meaning or intent.