Used in the treatment of relapsing forms of multiple sclerosis. It helps reduce the frequency of clinical relapses and delays the progression of physical disability. The compound acts as a prodrug, metabolizing into monomethyl fumarate, which has anti-inflammatory and neuroprotective effects in the central nervous system. It is taken orally, offering a convenient dosing regimen with a favorable gastrointestinal tolerability profile compared to some other fumarate-based therapies.