A prescription medication can kill a person in two hours or less, according to a new study that suggests the drug is no more dangerous than alcohol or nicotine.
The study published Thursday in the Journal of the American Medical Association looked at 1.5 million patients who took xanodone or its generic equivalent, varenicline, between 2007 and 2013.
It concluded the drug was safe and effective for treating anxiety and depression.
The results of the study suggest that while the drug has many medical uses, it is no better than a placebo for the treatment of depression, the study said.
It also found no evidence of any increased risk of heart attack, stroke or kidney failure.
The researchers said their results were based on data from more than 6,000 patients in a study of more than 1.3 million people in the United States who received the drug.
Researchers say that while it is still early to draw firm conclusions from the study, the results raise concerns about the safety of the drug and the possibility of a pandemic.
Dr. Scott Hagerty, a professor of psychiatry at Johns Hopkins University School of Medicine, said he was surprised to see a statistically significant difference between the study results and a meta-analysis of studies showing that the drug can cause death.
“The evidence is clear that it’s a relatively safe drug,” Hagerity said.
“The question that comes up is, how safe is it?”
He said there was no evidence that the drugs can cause psychosis, which is the most common side effect in people taking the drug, but that they can increase a person’s risk of depression and anxiety.
“If the drugs are doing what they’re supposed to do, and they’re not killing you, then we need to take action,” Hagers said.
“This is something that is so widely used and so widely available.
It’s an absolutely dangerous drug.”
The study also found that, after taking the drugs, some patients stopped taking the medications entirely, and some took longer to stop taking them than others.
The authors said their findings raise questions about how much of the people taking them actually had side effects.
They also noted that it took more than a decade to find the evidence that antidepressants, benzodiazepines and anti-anxiety medications can cause side effects, which has made it hard to determine what the true risk is.
The American Psychiatric Association says the drug should be used only as an adjunct to other medications to treat conditions such as depression and obsessive-compulsive disorder.
The association’s guidelines for physicians also say that antidepressants and benzodiazapines are contraindicated for anxiety.
A spokesman for the National Institute of Mental Health, which conducted the study with researchers from the National Center for Complementary and Alternative Medicine in Bethesda, Maryland, said the study was based on information that was gathered before the drug became available.
“In the interim, it’s been reviewed by the FDA, and we’re very much taking the information with a grain of salt,” spokesman Matthew Langer said in an email.
The U.S. Food and Drug Administration does not regulate the drugs.
The U.K.-based Cochrane Collaboration, which reviews and distributes the latest scientific information on medications, said it was aware of the results and would review the study.
“It’s important to note that these results do not necessarily suggest that the efficacy of antidepressants or anti-answers to depression is a zero-sum game, as they were not administered to people in isolation,” said co-author Dr. Jonathan Goldsworthy, an associate professor of epidemiology at Imperial College London.
But he added that the study did not rule out the possibility that the antidepressant or anti and anti drug may work differently for some people, and that further research is needed.
The drug was originally marketed as a treatment for severe depression, but it is increasingly used to treat anxiety, fatigue and other disorders.