The present invention is directed to a pharmaceutical submicron suspension and a method of forming the submicron suspension. The submicron suspension is useful for delivery of relatively hydrophobic and/or low solubility therapeutic agent. The submicron suspension and method of forming the submicron suspension typically employ a polymeric material that aids in preventing aggregation of the therapeutic agent.本發明係有關於一種藥學次微米懸浮液及一種形成此次微米懸浮液之方法。此次微米懸浮液係用於遞送相對較具疏水性及/或低可溶性之治療劑。此次微米懸浮液及形成此次微米懸浮液之方法典型上使用一助於避免此治療劑聚結之聚合物材料。