Table 3:

Adverse effects in the emergency department and at 72-hour follow-up

Adverse effect	No. (%) of patients		p value
Adverse effect	Hyoscine butylbromide	Acetaminophen	p value
In emergency department	n = 116^*	n = 115^*
Any adverse effect^†	32 (27.6)	28 (24.3)	0.5
Nausea	10 (8.6)	12 (10.4)
Dizziness	15 (12.9)	8 (7.0)
Dry mouth	5 (4.3)	7 (6.1)
Photosensitivity	9 (7.8)	3 (2.6)
Vomiting	3 (2.6)	1 (0.9)
Constipation	1 (0.9)	3 (2.6)
Dry skin	2 (1.7)	2 (1.7)
Racing heart	2 (1.7)	2 (1.7)
Headache	1 (0.9)	2 (1.7)
Diarrhea	0 (0.0)	1 (0.9)
Sweating	0 (0.0)	1 (0.9)
Drowsiness	1 (0.9)	0 (0.0)
72-h follow-up	n = 84^‡	n = 84^‡
Any adverse effect^†	12 (14.3)	12 (14.3)	0.99
Dry mouth	3 (3.6)	4 (4.8)
Constipation	0 (0.0)	1 (1.2)
Vomiting	0 (0.0)	2 (2.4)
Dizziness	4 (4.8)	0 (0.0)
Light sensitivity	1 (1.2)	1 (1.2)
Hives	0 (0.0)	1 (1.2)
Drowsiness	4 (4.8)	2 (2.4)
Headache	2 (2.4)	2 (2.4)

↵* Denominator reflects the number of participants who completed the 80-minute pain score.
↵† Some participants reported more than 1 adverse effect.
↵‡ Denominator reflects the number of participants for whom telephone follow-up alone was performed.