As a rule, the causal therapy of hypertriglyceridemia is possible only for its secondary forms. Indications for therapy are: a critical rise in triglyceride levels leading to symptoms of acute abdomen, disturbances of the lesser circulation, insulin-resistance or a reduction in the patient's working capacity. Triglyceride levels of 200 mg/dl are considered the threshold value for long-term therapy. In most cases, the desired can be obtained with dietary measures. Drug therapy mainly consists of nicotinic acid and its derivates, clofibrinic acid and its derivates as well as clofibrate successors.