Also found in: Medical, Idioms, Wikipedia.


Any of various compounds that bind to specific receptors in the central nervous system and have analgesic and narcotic effects, including naturally occurring substances such as morphine; synthetic and semisynthetic drugs such as methadone and oxycodone; and certain peptides produced by the body, such as endorphins. Also called opiate.

o′pi·oid′ adj.


a. any of a group of substances that resemble morphine in their physiological or pharmacological effects, esp in their pain-relieving properties
b. (modifier) of or relating to such substances: opioid receptor; opioid analgesic.


(ˈoʊ piˌɔɪd)

1. any opiumlike substance, as the endorphins produced by the body or the synthetic compound methadone.
2. pertaining to such a substance.


adj & n opioide m
References in periodicals archive ?
More than one quarter of a large HIV group in North Carolina had a prescription for opioid painkillers at least 2 years in a row, and many of those people had opioid prescriptions more than half of the time they spent in care for HIV.
The purpose was to evaluate our ongoing outpatient opioid prescribing in regard to indications, efficacy, and safety, and to compare with current guidelines.
Frank, MD, MPH, and his colleagues conducted in-person, semi-structured interviews of 24 adult primary care patients to assess patient perspectives on opioid tapering (Pain Med.
Prescription opioid medications include OxyContin[R] (oxycodone), Vicodin[R] (hydrocodone), codeine, morphine, methadone, and fentanyl.
Deaths due to opioid analgesics have increased substantially in the United States.
Our study raises the question: Why is outpatient opioid use not rare after vaginal delivery?
Earlier this year, the Centers for Disease Control and Prevention (CDC) published a clinical practice guideline aimed at decreasing opioid use in the treatment of chronic pain.
Over 50 million Americans are hospitalized annually after a surgical procedure (Centers for Disease Control and Prevention [CDC,] 2014), and many of them are discharged with a prescription for opioid analgesia.
Tipton (R-CO-03) introduced legislation to help boost hospitals resources in the fight against opioid addiction.
The study's opioid patients started on relatively low daily doses of morphine, oxycodone or generic Vicodin.
WASHINGTON: US President Donald Trump on Thursday called for a federal lawsuit against opioid companies and stiffer penalties for drug dealers, arguing that the government must take a strong approach to combat an opioid addiction epidemic.
01 (ANI): Turns out, children and teens are not left untouched by the opioid misuse crisis.