It can help repair and regeneration after nerve injury
Murugan, S., Solanki, H., Purusothaman, D., Bethapudi, B., Ravalji, M., Mundkinajeddu, D.: Safety evaluation of standardized extract of curcuma longa (NR-INF-02): a 90-day subchronic oral toxicity study in rats
Rodgers, Qingyan Jiang, Michael V
no large independent RCTs exist for injectable use
This idea is supported by Baek et al, who reported improved cognitive performance in older adults with cognitive impairment that completed 6-week of dual-task resistance band-based RT (3 sets of 10 repetitions, 3 times per week), which involved cognitively stimulating tasks simultaneously during RT (Tsutsumi et al., 1997
While it is generally safely used, overdose can result in the development of liver failure due to APAPs hepatotoxic metabolites