Many chemical and pharmaceutical compositions are known to produce antinociceptive effects that are helpful in relieving pain and inflammation. Both opioids and local anesthetics serve an important function in providing peripheral pain relief. Topical administration of pain-relieving drugs to the periphery...http://www.google.fr/patents/US6825203?utm_source=gb-gplus-shareBrevet US6825203 - Topical anesthetic/opioid formulations and uses thereof
Topical anesthetic/opioid formulations and uses thereof
