Figure 4From: Efficacy and safety of diclofenac diethylamine 1.16% gel in acute neck pain: a randomized, double-blind, placebo-controlled study Functional impairment (Neck Disability Index, NDI) over time (5 days of treatment). The NDI score demonstrated that patients’ function improved significantly with DDEA 1.16% gel vs. placebo from the first to the last assessment (p < 0.0001).Back to article page