Study	Reason for exclusion
Canty 1981	Participants: included patients with and without Ménière's disease; data on Ménière's patients not extractable
Conraux 1988	Participants: included patients with and without Ménière's disease; data on Ménière's patients not extractable
Fischer 1985	Participants: included patients with and without Ménière's disease; data on Ménière's patients not extractable
Frew 1976	Intervention: cross‐over trial; data not extractable
Hicks 1967	Allocation: not randomised
Legent 1988	Participants: included patients with and without Ménière's disease; data on Ménière's patients not extractable
Meyer 1985	Intervention: cross‐over trial; data not extractable
Oosterveld 1984	Intervention: cross‐over trial; data not extractable
Oosterveld 1989	Participants: Included patients with and without Ménière's disease; data on Ménière's patients not extractable
Redon 2010	Participants: all patients were post‐surgical (had undergone vestibular neurotomy for disabling Ménière's disease and had confirmed vestibular areflexia)
Singarelli 1979	Participants: included patients with and without Ménière's disease; data on Ménière's patients not extractable
Solvay 2007	Participants: all patients were post‐surgical (had undergone vestibular neurotomy for disabling Ménière's disease and had confirmed vestibular areflexia)
Watanabe 1967	Intervention: cross‐over trial; data not extractable
Wilmot 1976	Intervention: cross‐over trial; data not extractable
Wolfson 1967	Trial design: trial not double‐blind