Number of		Percent with outcome
Outcome - daily dose	Studies	Participants	Pregabalin	Placebo	Relative risk (95% CI)	NNH (95% CI)
At least one adverse event
150 mg	2	449	77	71	1.2 (0.97 to 1.4)	not calculated
300 mg	8	2190	82	67	1.2 (1.17 to 1.29)	6.6 (5.4 to 8.7)
450 mg	4	1379	90	74	1.2 (1.15 to 1.27)	6.3 (5.1 to 8.5)
600 mg	9	2540	83	67	1.3 (1.25 to 1.37)	6.1 (5.1 to 7.7)
At least one serious adverse event
150 mg	3	542	4.1	4.0	1.0 (0.5 to 2.3)	not calculated
300 mg	8	1566	3.6	2.9	1.2 (0.7 to 2.1)	not calculated
450 mg	2	740	2.7	1.6	1.7 (0.6 to 4.5)	not calculated
600 mg	9	2101	3.7	3.2	1.2 (0.7 to 1.8)	not calculated