The FDA has approved the opioid agonist hydromorphone in a once-daily extended-release (ER) oral tablet formulation (Exalgo – Covidien) for the management of moderate to severe pain in opioid-tolerant patients requiring continuous, long-term therapy. Another hydromorphone ER formulation (Palladone – Purdue) was available previously, but was withdrawn from the market because taking it with alcohol could interfere with the extended-release mechanism and lead to rapid release of potentially lethal amounts of the drug ("dose-dumping").

The FDA has approved a second extended-release (ER) formulation of the oral opioid agonist hydrocodone (Hysingla ER – Purdue) for management of pain severe enough to require continuous long-term therapy and for which alternative treatment options are inadequate. Hysingla ER tablets have abuse-deterrent properties to discourage their misuse.