Table 2.

Frequency of side effects of gabapentin based on the qualitatively reported “lowest dose” administered (range 3–25 mg/kg), further divided into two quantitative mg/kg ranges in 50 dogs with behavior disorders.

Side Effect 1	No. Dogs at Each Quantitative Dosing Category (%) with Owner Reported Side Effect		p-Value 2
	<15 mg/kg (n = 39)	15–30 mg/kg (n = 11)
Sedation	4 (10.3%)	1 (10.0%)	1.0
Increased activity	3 (7.7%)	1 (10.0%)	1.0
Agitation	5 (12.8%)	1 (10.0%)	1.0
Increased appetite	1 (2.6%)	0	1.0
Urinary incontinence	0	1 (10.0%)	0.2
New aggression	2 (5.1%)	1 (10.0%)	0.5
One or more of the above	9 (23.1%)	4 (40.0%)	0.4

¹ No side effects were reported for ataxia, vomiting, diarrhea, constipation, or increased aggression, which are therefore omitted from the table. ² Fisher’s Exact Test.