Salvia Studies Hold Promise for Addiction

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When comparing saliva to other drugs, participants said they had an awareness of the external world with drugs such as LSD and psilocybin -- or so-called "magic mushrooms."

But with salvia, they said they had a feeling of "leaving this reality completely and going to other worlds or dimensions and interacting with entities," according to Johnson.

The participants, all of whom were healthy, showed no changes in heart rate or blood pressure.

Psychedelic Drug Salvia Is Legal in Most States

The U.S. Department of Justice's Drug Enforcement Administration has included salvia in a list of "drugs and chemicals of concern," but to date there is no federal ban.

Salvia is legal to buy, sell, and use in most parts of the United States. However, 13 states have adopted legislation banning or otherwise regulating its use. Legislators in a number of other states, as well as federal officials, are considering regulating the drug.

The DEA lists salvia, which is smoked, as a schedule 1 drug, like LSD and marijuana. Unlike LSD, a manmade hallucinogen that lasts about six hours, salvia's effects last an hour or so, peaking in about 20 minutes or less.

People who abuse salvia generally experience hallucinations or "psychotomimetic" episodes, a transient experience that mimics a psychosis, according to the National Institute on Drug Abuse. (NIDA)

Subjective effects have been described as psychedelic-like changes in visual perception, mood and body sensations, emotional swings and feelings of detachment.

Most concerning, according to drug experts, is the highly modified perception of external reality, leading to a decreased ability to interact with one's surroundings.

In a 2009 survey of first-time use among teenagers, 5.7 percent of high school seniors reported they had tried salvia in the past year -- a number greater than those who used ecstasy, according to NIDA.

"There is good news and bad news about salvia," said Dr. Byran Roth, a professor of pharmacology at the University of North Carolina, who discovered the mechanism of how salvia affects the brain in animal studies 2002.

Now, he has a National Institutes of Health grant to study medical applications of synthetic versions of the herb.

"In terms of its effects on humans, it's an extremely powerful hallucinogenic agent, and if people smoke it they basically are disassociated from reality," said Roth.

"The concern is that you don't want to drive a car," he said. "If you go on YouTube, there are frightening videos of people out of touch with reality."

Although there is no hard science on the long-term effects on the adolescent brain, which is still developing, there has been anecdotal evidence that it can have a prolonged and harmful effect on mood.

"It was becoming quite clear that adolescence is a time of remarkable change in the brain, and that the use, especially repeated, heavy use, of psychoactive drugs can have profound effects on the brain," said David P. Friedman, professor of physiology and associate dean for research at Wake Forest University School of Medicine.

"In the cases of alcohol and tobacco at least, we now know that adolescent use is more likely to lead to abusive use than if use is put off till the 20s," he said.

Traditionally, saliva has been ingested by chewing fresh leaves or by drinking their extracted juices. The dried leaves can also be smoked as a joint, consumed in water pipes, or vaporized and inhaled.

"The hopeful thing about it is emergency rooms are not inundated with people coming in with bad salvia reactions," Roth added. "It seems like the vast majority of people smoke it, had the experience and say they don't want to do it again. It's too frightening and intense and not what they are looking for."

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