Thalix 100 mg capsules contains thalidomide that belong to a class of medications called immunomodulatory agents. These are widely used in combination with dexamethasone for the treatment of multiple myeloma. This medicine is specifically beneficial for patients who have been newly diagnosed with this disease. In addition, these medicine is also indicated for use individually or in combination with other medications for the treatment and prevention of skin inflammation especially in those patients who have moderate to severe erythema nodosum leprosum.