Table 2

Visit schedule during the clinical trial

	Visit 1, day 0	Visit 2*, day 2–3	Visit 3, day 14–28†	Visit 4*, day 90
Medical history and physical examination	x		x
Informed consent form	x
Randomisation	x
Giving out of symptom diaries	x
Evaluation of clinical evolution		x	x
Assessment of adverse events		x	x
Collection of symptom diaries			x
Reporting of recurrences, medical visits or hospital admissions due to the baseline infection		x	x	x

*Phone call.
†Depending on the infection (14 days for influenza and sore throat; 28 days for acute bronchitis and acute rhinosinusitis). A further visit should be scheduled if symptoms persist on visit 3.