The use of 2-hydroxypropyl-beta -cyclodextrin (cdex) for preparing an opioid analgesic preparation for intramuscular or subcutaneous administration

摘要

The use of 2-hydroxypropyl- beta -cyclodextrin (CDEX) for preparing an opioid analgesic preparation for intramuscular or subcutaneous administration provides novel pharmaceutical preparations having a sustained systemic pain alleviating effect. A method of causing systemic analgesia in a mammal, including a human, is also described.