<prompt> Chemical labyrinthectomy by transtympanic route is done in Menieres disease using which drug?AmikacinGentamicinAmoxicillinCyclosporine  <response>: Chemical labyrinthectomy in Meniere;s disease is done using Gentamicin locallyRef: PL Dhingra, Diseases of Ear, Nose Throat, 7th edition, pg no. 115 