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<p>Prior to the change of the law on 1 November 2018, only cannabis-based products
that had been given a marketing authorisation (product licence) by the medicines regulators,
the Medicines and Healthcare products Regulatory Agency (MHRA) or European Medicines
Agency could be prescribed. Before issuing a marketing authorisation the MHRA accesses
all the available evidence on efficacy and safety arising out of pre-clinical research
and clinical trials and evidence and information supplied by the manufacturer. The
regulators also inspect the factory where the medicine is to be made, to make sure
that supplies will be of a uniformly and consistently high standard.</p><p> </p><p>The
following cannabis-based products and related products received a marketing authorisation
in the United Kingdom/European Union before 1 November 2018:</p><p> </p><p>- Sativex
- (produced by GW Pharmaceuticals) containing tetrahydrocannabinol (THC) and cannabidiol
- holds a licence for spasticity in multiple sclerosis; and</p><p>- Nabilone - (multiple
manufacturers) which contains a synthetic, non-natural cannabinoid which mimics THC,
holds a marketing authorisation for nausea and vomiting caused by chemotherapy.</p><p>
</p><p>In addition, Epidiolex (also produced by GW Pharmaceuticals from cannabis)
for two severe forms of intractable epilepsy (Lennox-Gastaut Syndrome or Dravet Syndrome),
is currently being considered for a marketing authorisation by the European Medicines
Agency.</p><p> </p><p>The change in the law allows the prescription, by specialist
doctors on the General Medical Council’s Specialist Register, of cannabis-based products
that have not been through this rigorous process but that meet certain quality standards
in cases where all licensed products have been considered and discounted and it is
in the best interest of the patient. It also makes</p><p>it easier and will incentivise
further research into the potential health benefits of cannabis-based products and
the development of further licensed products for more routine use in the health service.</p>
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