why was medical cannabis banned in the uk?

Question: why was medical cannabis banned in the uk?
- Keywords:
  ban,
  cannabis,
  medical,
  uk
Asked by 692drgj34 to Abid, Donna, Sanjib, Thomas, Avril on 20 Jun 2017.
- Donna Johnson answered on 20 Jun 2017:
  
  Probably because there’s not enough clinical evidence for it working and its open to abuse without thorough guidelines into its use and control.
  There’s ongoing research and trials though and someone was recently prescribed cannabis oil (it doesn’t have the psychoactive compound in it) in the UK for help with epilepsy

Question: why was medical cannabis banned in the uk?