What is the strongest pain killer in the world?

As part of federal efforts to curb prescription drug abuse, the US Drug Enforcement Agency (DEA) has reclassified hydrocodone-combination drugs (Vicodin/AbbVie) as a schedule 2 controlled substance. read more

It does not actually deaden the pain, but works to dissociate patients from the pain. Commonly used narcotics, listed in ascending order of potency (strength) include: codeine; propoxyphene (e.g. Darvocet); hydrocodone (e.g. Vicodin); oxycodone (e.g. Percocet, Oxycontin). read more

Strong opioids are used for severe pain associated with trauma, major surgery and cancer. Morphine -- the gold standard of opioids -- is one of the oldest and most versatile of strong opioids. It can be given by mouth, under the tongue, intravenously, by injection and even rectally. read more