Skip to main content
. 2015 Apr 13;2015(4):CD010501. doi: 10.1002/14651858.CD010501.pub2

Comparison 1. Pyridoxal 5 phosphate (Vitamin B6) versus placebo.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Global: Clinical efficacy ‐ significant reduction in ESRS scores from baseline 2 65 Risk Ratio (M‐H, Fixed, 95% CI) 19.97 [2.87, 139.19]
2 Global 1. Average endpoint dose of pyridoxal 5 phosphate     Other data No numeric data
3 Global: 2. Other adverse effects than tardive dyskinesia 2 65 Risk Ratio (M‐H, Fixed, 95% CI) 3.97 [0.20, 78.59]
4 Global: 3. Discontinuation of Vitamin B6 2 65 Risk Ratio (M‐H, Fixed, 95% CI) 8.72 [0.51, 149.75]
5 Tardive dyskinesia: 1. Deterioration in tardive dyskinesia symptoms 2 65 Risk Ratio (M‐H, Fixed, 95% CI) 0.16 [0.01, 3.14]
6 Tardive dyskinesia: 2. Average endpoint ESRS tardive dyskinesia scores 2 60 Mean Difference (IV, Fixed, 95% CI) ‐4.07 [‐6.36, ‐1.79]
7 General Mental State: Average endpoint positive psychiatric symptoms score 1 15 Mean Difference (IV, Fixed, 95% CI) ‐1.50 [‐4.80, 1.80]
8 General mental state: Average endpoint negative psychiatric symptoms score 1 15 Mean Difference (IV, Fixed, 95% CI) ‐1.10 [‐5.92, 3.72]