Scientists at the University Medical Center Groningen found that a tiny amount of digoxin helps people with heart failure stay out of the hospital and live longer.
Why Heart Failure Is a Growing Problem
More than half a million people in the Netherlands have heart failure, and the number is rising. The heart cannot pump blood well, so patients feel very tired, short‑of‑breath, and often need to be admitted to the hospital.
Digoxin Joins the "Fantastic Four"
Doctors usually treat heart failure with four main drugs, called the "Fantastic Four." Researchers have wondered if digoxin could be a helpful fifth medicine.
Three new studies from the same university now provide strong evidence that it can be.
Hospital Visits Dropped by One‑Quarter
In one trial, 1,000 patients from 43 Dutch hospitals were split into two groups. Half received a low dose of digoxin for about three years, while the other half got a harmless sugar pill.
When the results were combined with two older studies, the data showed a clear, statistically significant benefit. The biggest improvement was a 25% drop in hospital admissions for heart failure.
Stopping Digoxin Can Cause Trouble
About 600 of the original participants were followed after the study ended. Those who stopped digoxin had many more problems in the first six weeks than those who never took it. Fourteen out of 288 patients were hospitalized or died.
Very Cheap, Very Effective
Digoxin costs less than ten cents a day, far cheaper than many newer heart‑failure pills that cost several euros each day. Because it is so affordable, the new findings could help many more patients.
How a Small Dose Works
At low doses, digoxin mainly lowers the body’s stress hormones, such as adrenaline, which eases the strain on a weak heart. Higher doses used in the past tried to make the heart contract harder, but that often caused more harm than good.
Funding Made It Possible
The study was funded with three million euros from the Hartstichting and ZonMw, part of a program that encourages the good use of medicines.