There has been an influx of ecstasy into Australia and New Zealand.
The findings come amid what is known as the "psychedelic renaissance."
The research comes amid a "psychedelic renaissance," in which scientists have investigated whether psychoactive drugs such as MDMA and LSD could be used to treat mental illnesses such as depression, anxiety and PTSD.
Recently, researchers have been looking at how the pure form of MDMA can be used in therapy to treat mental health problems.
More than a dozen arrests were made before the "Holy Ship!" party cruise embarked from Port Canaveral.
MDMA is a psychoactive compound, commonly known as ecstasy, that's primarily used as a recreational drug.
MDMA-assisted psychotherapy has previously shown promise in the treatment of a variety of conditions ranging from post-traumatic stress disorder to depression and alcohol addiction.
The drug has also been eyed to treat depression and PTSD.
Spain beats Swiss cities in the cocaine top 10; amphetamine is big in Germany and the Low Countries; and Amsterdam is a runaway leader for MDMA use.
This comes after the Food and Drug Administration designated MDMA as a "breakthrough therapy."
Study also found that purity testing at music festivals can curb use of adulterated drugs.
The warning comes after three 12-year-olds in the U.K. swallowed pills with soft drinks.
Psilocybin, LSD and other chemicals should be extensively studied, scientists say.
A letter published in the Lancet Psychiatry Journal has claimed that psychedelic drugs are safer than currently thought.
Law enforcement and advocacy groups say "molly" has become nothing more than a marketing term.
Police are investigating why the MDMA caused symptoms consistent with overdoses.