The present invention relates to methods for producing particles of a biologically active material using dry milling processes as well as compositions comprising such materials, medicaments produced using said biologically active materials in particulate form and/or compositions, and to methods of treatment of an animal, including man, using a therapeutically effective amount of said biologically active materials administered by way of said medicaments.本発明は、乾式粉砕方法を用いて生物学的活性物質の粒子を作製する方法、並びにかかる物質を含む組成物、微粒子形態の前記生物学的活性物質及び/又は組成物を用いて生成される医薬、並びに前記医薬を介して投与される治療有効量の前記生物学的活性物質を用いてヒトを含む動物を治療する方法に関する。【選択図】なし