A new drug called microvibrates the blood vessels and helps the heart pump more blood.
But it can also cause heart attacks, strokes, and deaths.
That’s the conclusion of a landmark study in mice, which shows that the drug can increase the risk of a heart attack in the lab.
The new drug, called microvolar, could help prevent heart attacks and strokes in humans.
This is the first report of an agent that is not a known heart disease or cancer drug that increases the risk for a cardiac arrest, the new study found.
Microvibrators are devices that change the way blood flows in the body, helping the heart beat.
The current treatments for patients with heart disease have mostly been heart surgery, and microvibes are used to stop the blood flow in the heart muscle, which can cause problems for patients and even death.
The new study shows that microvibe treatments also increase the heart rate in mice.
The heart rate increases when the heart is pumping more blood, and researchers tested a drug called dendrite-stimulating drugs to see if it would help decrease heart rate.
The drug reduces the rate of the heart’s beating, and it can be given in the form of a pill, a shot, or a capsule.
But the researchers found that dendrites were more active in mice with microvigor when the drug was given before the heart was pumping.
“If you’re giving this drug after a heart murmur, then the dendritic cells start to increase and produce more of these drugs, and this increases the chance of a cardiac death,” said study researcher Matthew H. Wittenberg, a professor of medicine at the University of Pennsylvania.
In the mice with heart defects, dendrils produced the most drugs, which caused the heart to beat faster.
Microvibrating the heart, Wittenburg said, could potentially save the life of a patient.
While microvigants are commonly used to treat heart problems in humans, they are very new and have not been tested in animals.
The study is the latest to show that microvolars are potentially harmful in humans and animals.
This week, a company called Nanorack announced it was developing a product called NanoVibrator, which it says is safer and more effective than microvials.
The company also said it would test the drug in mice before deciding whether it should be marketed in humans or animals.
Microvolars have not received approval for use in humans yet.
Follow LiveScience on Twitter @livescience.
We’re also on Facebook and Google+.