In particular they looked at feel good chemical serotonin receptors which are affected by hallucinogenic drugs and at a protein called DAT which pumps the neurotransmitter dopamine back in to nerve cells.
But Benzo Fury with its mixed properties is a trap as its repetitive use for the hallucinogenic effects could lead to dependence, which the user may not expect.
In June 2012 19-year-old Alex Heriot died at a music festival in June 2012.
At the time his death at the Rock Ness festival in Inverness-shire was blamed on Benzo Fury although ectasy poisoning was later given as the cause of death.
According to The Sun newspaper, Irina told a source close to the pair: ‘Now I know the truth and I feel completely betrayed.
I trusted him and stuck up for him when there were rumours he had been with other women.
I feel stupid that Cristiano has fooled me.’ 'Betrayed': The relationship began to unravel as the pair planned a party at their Madrid home when Irina spotted one of Cristiano's phone statements lying around and spotted numbers she didn't recognise ‘She immediately confronted Cristiano about it, but he initially denied any knowledge,’ an inside explained.
‘After she explained to him what she had found he eventually admitted to messaging the girls.
Meanwhile, Irina appears to have mended her broken heart thanks to the American actor; the new hot couple have been pictured on various occasions, locking lips in a passionate embrace during public outings.
Irina jetted into the UK from a modelling gig in Barcelona a few days ago to join her man who is currently preparing for the London run of his play The Elephant Man at the Theatre Royal Haymarket, which kicks off this week.