The goal of this clinical trial is to compare effects of marijuana or cannabis on neuropathic pain and spasticity in spinal cord injury patients. The main question is: Does the cannabis product from KhonKaen University reduce neuropathic pain and spasticity in spinal cord injury patients? The research design is a crossover study. The participants will be randomly into 2 groups: group 1 and group 2. The participants received either cannabis or placebo for 2 weeks. After completing treatment, participants were swapped to the other group for 2 weeks, a wash-out period is 2 weeks. The outcome measurements are pain and spasticity.

Inclusion Criteria:

• Spinal cord injury more than 6 months
• Neuropathic pain
• Pain score > 3
• Do not response to standard medical treatment
• Given inform consent

Exclusion Criteria:

• Allergy to cannabis
• Unstable cardiovascular and pulmonary diseases
• Chronic kidney and liver diseases
• Psychological disease
• Pregnancy or breastfeeding

Individual participant data that underlie the results reported in this article after deidentification.

beginning 3 months and ending 5 years following article published

Researchers who provide a methodologically sound proposal.