The brand name Meridia is the sibutramine hydrochloride monohydrate capsules. Meridia is 10mg and 15mg orally administered capsules having sibutramine as the active ingredient. The inactive ingredients of Meridia are microcrystalline cellulose, lactose monohydrate, magnesium stearate, and colloidal silicon dioxide encapsulated in a hard gelatin capsule containing gelatin, titanium dioxide, FD&C Blue No. 2 (10mg capsules), and D&C Yellow No. 10 (15mg capsules).