Hello Doc, My Sister Has Been Prescribed With Neuromet Capsules

Hello doc, my sister has been prescribed with neuromet capsules by an ENT. For her hearing loss in relation to left ear since last 7 years.. She has started with a tablets from last one week. Wanted to knw will the tablet really help her to regain her hearing??? If yes, Hw long shld she continue taking it???And what are the side effects??