(CNN) -- In the painkiller world, oxycodone and naloxone seem like strange bedfellows. Oxycodone is a powerful painkiller, while naloxone is used to reverse painkiller overdose. On Wednesday, the Food and Drug Administration approved a drug combining the two, called Targiniq ER. The drug's maker, Purdue Pharma, said the combination is intended to "alleviate pain while also introducing a new method by which to help deter misuse and abuse." Oxycodone is one in a group of powerful painkillers -- called opioid analgesics -- that include hydrocodone, morphine and hydromorphone. It provides pain relief by binding to receptors in the brain that dull the sensation of pain.
@highlight
The Food and Drug Administration approves Targiniq ER
@highlight
Drug relieves pain while at the same time deterring misuse
@highlight
Experts on addiction say they fear Targiniq could still be easily abused
In the case of @placeholder, it happens only when the pill is crushed.