The disclosure relates to methods for treating hyperlipidemia in a mammal. The present disclosure also relates to methods for treating and/or controlling obesity in a mammal. The methods involve combination therapies using a microsomal triglyceride transfer protein (MTP) inhibitor (for example, AEGR-733 and implitapide) and a DGAT inhibitor (for example, JTT-553 or PF-04415060). Co-administration of the MTP inhibitor with the DGAT inhibitor produces a therapeutic benefit, for example, a reduction in the concentration of cholesterol and/or triglycerides in the blood stream, but with fewer or reduced side effects than when higher dosages of the MTP inhibitor are used during monotherapy to provide the same or similar therapeutic benefit.
