Home > Medical > Pain > Opioids Opioids All sections in Pain » About Pain » Different Painkilling Drugs » Epidurals » FAQs » Health Tips » Local Anaesthetics » Pain News » Opiods » Pain in Children » Post-operative Pain Relief » Real-life Story Opioids Opioids can be used with other pain killers like paracetamol and NSAIDs. They can be categorised according to their effect: low, intermediate and high efficacy. Low efficacy opioids Low-efficacy opiods include codeine and porpoxyfene. High efficacy opioids High efficacy opioids are mostly administered by injection. They include morphine, nalbuphine and pethidine. Start A Health24 blog » Ask Osteopath » Quiz Are you depressed? » Assess Cancer - are you at risk? » 7 warning signs you should not ignore 6 pains you shouldn't ignore Moderate efficacy opioids These opioids are effective against moderate pain, and in adequte doses also against more severe pain. load more articles advertisement From our sponsors Your retirement - a healthy mindset So many people, why so alone? You can still enjoy the sweet things in life Take the sugar test, it could save your life.