Here is some interesting spinal injury treatment I have have been researching using HupA.

Alleviation of chronic pain following rat spinal cord compression injury with multimodal actions of huperzine A.

Neuropathic pain, one of the most debilitating sequelae of neurotrauma, is an unmet clinical need for at least 40% of patients with spinal cord injury (SCI). We demonstrate that [-]-huperzine A (HUP-A), a naturally occurring Lycopodium alkaloid isolated from the Chinese club moss, Huperzia serrata, with potent reversible inhibitory action on acetylcholinesterase and N-methyl-d-aspartate glutamate receptors, offers an exceptional prospect for multimodal treatment of SCI-induced neuropathic pain in rats. HUP-A restores homeostasis of central sensory neurocircuitry without invoking drug tolerance and dependence or respiratory suppression. We therefore conclude that multimodal actions provide a fresh translational approach to reduce chronic pain.
[link to www.ncbi.nlm.nih.gov (secure)] much more at the link.