Norwayz Tablet is a prescription medicine used to treat Friedreich’s ataxia and vision impairment in patients with Leber’s hereditary optic neuropathy, an eye disorder that can lead to loss of eyesight. This way it helps in improving the lost eyesight. While Idebenone is the active ingredient of this medicine, it also contains other inactive ingredients such as methyl propanediol, dimethicone, Cyclopentasiloxane, and others. Idebenone is a member of a group of drugs called 1.4-benzoquinones.