Table 3. Occurrence of nausea, dizziness and sedation after drug intake.

	Imipramine	Tolterodine	p-value
Nausea
30 min	0.2 (0.8)	0.0 (0.2)	0.146
60 min	0.0 (0.1)	0.0 (0.1)	n/a
90 min	0.1 (0.5)	0.0 (0.2)	0.371
120 min	0.3 (0.9)	0.0 (0.1)	0.025
Dizziness
30 min	0.5 (1.3)	0.1 (0.6)	0.024
60 min	0.4 (1.2)	0.1 (0.5)	0.119
90 min	0.5 (1.2)	0.1 (0.4)	0.021
120 min	0.6 (1.4)	0.1 (0.4)	0.002
Sedation
30 min	1.2 (1.9)	1.3 (2.1)	0.755
60 min	1.3 (2.1)	1.5 (2.3)	0.460
90 min	1.3 (2.1)	1.3 (2.1)	0.963
120 min	1.4 (2.2)	1.1 (1.8)	0.452

Intensity of side effects nausea, dizziness and sedation, rated on a numeric rating scale between 0 (no side effect at all) and 10 (maximally imaginable side effect). Values are displayed as means (standard deviation).