Design of novel molecules that are non-addictive and non-respiratory depressant.
Sustained-release microsphere injections which can provide analgesia and local anesthesia for more than 24 hours after single injection.
Sufentanil transdermal patch and other products have no first-pass effect and high bioavailability.
Drugs including Hydrocodone Sustained-release Tablets and Oxycodone Sustained-release Tablets, are designed to be difficult to crush, difficult to extract and difficult to be abused.