Rare type of MOSS could be 'better than cannabis at relieving pain' because it contains a substance similar to THC
A rare type of moss could be more effective than medicinal cannabis for treating pain, according to new research.
Swiss researchers have been investigating the medicinal properties of the liverwort plant Redula Perrottetii.
The plant, which only grows in Japan, New Zealand and Costa Rica, contains a substance similar to THC found in the illegal narcotic.
Tetrahydrocannabinol (THC) can be used in the medical field to deal with certain types of pain, muscle cramps, dizziness and loss of appetite.
Tests by scientists at the University of Bern show perrottetinene has a stronger anti-inflammatory effect in the brain than THC and is less psychoactive.
Cannabis is illegal in the UK for recreational purposes.
But specialist doctors in England, Wales and Scotland will be able to prescribe it medicinally on a case-by-case basis as of next month.
The landmark reform came after two heartbreaking and high profile cases of medicinal cannabis helping children suffering from severe epilepsy.
The team of researchers, led by Professor Jürg Gertsch, then biochemically and pharmacologically compared THC and perrottetinene.
Using animal models, the team was able to demonstrate that perrottetinene reaches the brain very easily.
The tests also found the compound has a stronger anti-inflammatory effect in the brain than THC.
Researchers found perrottetinene was less psychoactive than THC, but said more studies were necessary to look at chronic and inflammatory pain.
The study, published in the journal Science Advances, said cannabis is rarely used medically because it can have a strong psychoactive effect.
Professor Gertsch began investigating the pharmacological effects of perrottetinene after discovering liverworts were being sold as legal highs online.
Andrea Chicca, a member of scientific staff in Dr Gertsch’s group, said there is the potential for developing the therapeutic use of perrottetinene or similar substances.
He added: 'This natural substance has a weaker psychoactive effect and, at the same time, is capable of inhibiting inflammatory processes in the brain.'
The Home Secretary insisted the dramatic change in policy on medicinal cannabis change was not the first step towards the broader legalisation of cannabis.
Cannabis was previously considered Schedule 1. Drugs in this class are thought to have no medicinal value and therefore cannot be legally possessed or prescribed.
Schedule 2 drugs, such as ketamine, are those that can be prescribed and supplied by doctors and pharmacists.
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