Table 4. Frequency of side effects for the two groups of participants.

Side effect	Control group n(%)	Experimental group n(%)	p-value
Nausea	25 (31.2%)	26 (32.5%)	0.865
Vomiting*	28 (35.0%)	15 (18.8%)	0.020
Headache	27 (33.8%)	21 (26.6%)	0.301
Hallucination*	8 (10.0%)	18 (22.5%)	0.032
Itching	21 (26.2%)	12 (15.0%)	0.079

*indicates significant difference between the two groups.