CENTRAL	PubMed	EMBASE (Ovid)	CINAHL (EBSCO)
#1 MeSH descriptor Meniere Disease explode all trees #2 meniere* #3 (ENDOLYMPHATIC and HYDROPS) or (LABYRINTH and HYDROPS) or (LABYRINTH and SYNDROME) or (aural and vertigo) or (labyrinth and vertigo) or (cochlea and hydrops) #4 (#1 OR #2 OR #3) #5 MeSH descriptor Betahistine explode all trees #6 BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL #7 (#5 OR #6) #8 (#4 AND #7)	#9 #7 OR #8 #8 "Meniere Disease/drug therapy"[Mesh] #7 #3 AND #6 #6 #4 OR #5 #5 Betahistin* [tiab] OR BETAISTINA [tiab] OR SERC [tiab] OR AEQUAMEN [tiab] OR BETASERC [tiab] OR BETASERK [tiab] OR BEATSERKA [tiab] OR EXTOVYL [tiab] OR FIDIUM [tiab] OR LECTIL [tiab] OR LOBIONE [tiab] OR MEGINALISK [tiab] OR MELOPAT [tiab] OR MENIACE [tiab] OR MERISLON [tiab] OR MICROSER [tiab] OR RIBRAIN [tiab] OR VASOMOTAL [tiab] #4 "Betahistine" [Mesh] #3 #1 OR #2 #2 meniere* [tiab] OR (ENDOLYMPHATIC [tiab] AND HYDROPS [tiab]) OR (LABYRINTH [tiab] AND HYDROPS [tiab]) OR (LABYRINTH [tiab] AND SYNDROME [tiab]) OR (aural [tiab] AND vertigo [tiab]) OR (labyrinth [tiab] AND vertigo [tiab]) OR (cochlea [tiab] AND hydrops [tiab]) #1 "ENDOLYMPHATIC HYDROPS" [Mesh]	1 MENIERE DISEASE/ 2 meniere*.tw. 3 ((ENDOLYMPHATIC and HYDROPS) or (LABYRINTH and HYDROPS) or (LABYRINTH and SYNDROME) or (aural and vertigo) or (labyrinth and vertigo) or (cochlea and hydrops)).tw. 4 1 or 3 or 2 5 Betahistine/ 6 (BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL).tw. 7 6 or 5 8 4 and 7 9 Meniere disease/dt [Drug Therapy] 10 8 or 9	S6 S4 and S5 S5 TX BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL S4 S1 or S2 or S3 S3 TX (ENDOLYMPHATIC and HYDROPS) or (LABYRINTH and HYDROPS) or (LABYRINTH and SYNDROME) or (aural and vertigo) or (labyrinth and vertigo) or (cochlea and hydrops) S2 TX meniere* S1 (MH "Meniere's Disease")
Web of Science/ BIOSIS Previews (Web of Knowledge)	BIOSIS Previews (Ovid)	Cochrane Ear Nose and Throat Trials Register (ProCite)	ICTRP
#3 #1 AND #2 #2 TS=(BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL) #1 TS=(meniere* OR (ENDOLYMPHATIC and HYDROPS) or (LABYRINTH and HYDROPS) or (LABYRINTH and SYNDROME) or (aural and vertigo) or (labyrinth and vertigo) or (cochlea and hydrops))	1 meniere*.tw. 2 ((ENDOLYMPHATIC and HYDROPS) or (LABYRINTH and HYDROPS) or (LABYRINTH and SYNDROME) or (aural and vertigo) or (labyrinth and vertigo) or (cochlea and hydrops)).tw.869 3 1 or 2 4 (BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL).tw. 5 3 AND 4	BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL	BETAHISTIN* or BETAISTINA or SERC or AEQUAMEN or BETASERC or BETASERK or BEATSERKA or EXTOVYL or FIDIUM or LECTIL or LOBIONE or MEGINALISK or MELOPAT or MENIACE or MERISLON or MICROSER or RIBRAIN or VASOMOTAL