opioid

As nouns the difference between opiates and opioid

is that opiates is while opioid is a substance that is like opium.

As a verb opiates

is (opiate).

In pharmacology terms the difference between opioid and drug

is that opioid is any of a group of synthetic compounds that exhibit similarities to the opium alkaloids that occur in nature while drug is a substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.

As nouns the difference between opioid and drug

is that opioid is a substance that is like opium while drug is a substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.

As a verb drug is

to administer intoxicating drugs to, generally without the recipient's knowledge or consent.

As nouns the difference between taxonomy and opioid

is that taxonomy is the science or the technique used to make a classification while opioid is a substance that is like opium.

As nouns the difference between narcotic and opioid

is that narcotic is any class of substances or drugs, that reduces pain, induces sleep and may alter mood or behaviour while opioid is a substance that is like opium.

As an adjective narcotic

is of, or relating to narcotics.

As a noun opioid

is a substance that is like opium.

As an adjective opioidlike is

resembling or characteristic of opioids.

As nouns the difference between opioid and methylnaltrexone

is that opioid is a substance that is like opium while methylnaltrexone is a peripherally-acting μ-opioid antagonist that acts to reverse some of the side effects of opioid drugs such as constipation without affecting analgesia or precipitating withdrawals.

As nouns the difference between opioid and metenkephalin

is that opioid is a substance that is like opium while metenkephalin is (biochemistry) an endogenous opioid peptide neurotransmitter found naturally in many parts of the animal and human body; one of the two forms of enkephalin (the other being leuenkephalin).

As nouns the difference between opioid and leuenkephalin

is that opioid is a substance that is like opium while leuenkephalin is an endogenous opioid peptide neurotransmitter found naturally in the brains of many animals, including humans; one of the two forms of enkephalin (the other being metenkephalin).

As nouns the difference between opioid and nonopioid

is that opioid is a substance that is like opium while nonopioid is any drug that is not an opioid.