Characteristics
Gabapentin group (n=30)
Placebo group (n=30)
P-value
Age (year)
26.5 ± 5.1
27.6 ± 7.5
0.522
measure of used crack (gr/day)
0.87 ± 0.39
0.78 ± 0.24
0.327
duration of crack using (year)
2.8 ± 1.1
3.0 ± 0.9
