In contrast, trenbolones stacking behavior with oxandrolone (Anavar), methenolone (Primobolan), or drostanolone (Masteron) is entirely different. If keeping the same total milligram amounts, these combinations do not outperform trenbolone used alone. So, while its acceptable to combine these drugs, the purpose should not be to achieve increased total effect. Such combinations may be useful however to reduce side effects, or to accommodate the materials that are on hand.