Table 2.

Reported side effects by treatment group

Side effects	Pregabalin (n=55)	Placebo (n=52)	P-value
Ever experienced
Nausea	43 (78.2%)	42 (80.8%)	0.74
Vomiting	28 (50.9%)	30 (58.8%)	0.41
Sleepy	47 (85.5%)	39 (76.5%)	0.24
Dizzy	45 (81.8%)	26 (50%)	<0.01
Headache	28 (50.9%)	17 (33.3%)	0.07
Blurred vision	15 (27.3%)	7 (13.7%)	0.09
Diarrhea	28 (50.9%)	29 (56.9%)	0.54
Constipation	6 (10.9%)	15 (29.4%)	<0.02
Dry mouth	22 (40%)	25 (48.1%)	0.40
After study capsule
Nausea	37 (67.3%)	38 (73.1%)	0.51
Vomiting	20 (36.4%)	25 (49%)	0.19
Sleepy	47 (85.5%)	35 (68.6%)	<0.04
Dizzy	45 (81.8%)	22 (42.3%)	<0.01
Headache	17 (30.9%)	15 (29.4%)	0.87
Blurred vision	15 (27.3%)	6 (11.8%)	<0.05
Diarrhea	25 (45.5%)	28 (54.9%)	0.33
Constipation	5 (9.1%)	11 (21.6%)	0.07
Dry mouth	21 (38.2%)	21 (40.4%)	0.82

Data are n (%).