Mild reduction of neuropathic pain. Improved sleep, no major adverse effects.
Link: Efficacy Of Two Cannabis Based Medicinal Extracts For Relief Of Central Neuropathic Pain From Brachial Plexus Avulsion: Results Of A Randomised Controlled Trial
Year: 2004
DOI: 10.1046/j.1365-2044.2003.03408_3.x
Demonstrable efficacy of cannabis for treatment of Pain (Neuropathies, in general) according to the results found in this study.
Sativex, containing THC:CBD in an approximate 1:1 ratio, and GW-2000-02, containing primarily THC and placebo, delivered as oral sprays