Summary of results K: Relief of phonophobia within two hours in placebo‐controlled studies
Route of administration	Dose (mg)	Number of		Number with outcome/total		Percent with outcome		Relative benefit (95% CI)	NNT (95% CI)
		Studies	Participants	Active	Placebo	Active	Placebo
In participants with moderate or severe baseline pain
Oral	50	4	852	244/490	134/362	50	37	1.4 (1.2 to 1.6)	7.8 (5.1 to 16)
Oral	100	7	2118	736/1492	164/626	49	26	1.8 (1.6 to 2.1)	4.3 (3.7 to 5.3)
Subcutaneous	6	3	572	223/310	101/262	72	39	1.8 (1.5 to 2.2)	3.0 (2.4 to 3.9)
Intranasal	20	3	933	309/594	93/339	52	27	1.9 (1.6 to 2.3)	4.1 (3.3 to 5.4)
In participants with mild baseline pain
Oral	50	3	413	105/202	37/211	52	18	3.0 (2.2 to 4.2)	2.9 (2.3 to 3.9)
Oral	100	3	400	120/189	37/211	63	18	3.7 (2.7 to 5.1)	2.2 (1.8 to 2.7)