News tagged with opioids

Related topics: pain

High-dose opioid prescribing continues to climb

High-dose opioid prescribing increased by 23 per cent in Canada between 2006 and 2011, despite clinical guidelines recommending that most patients should avoid high-doses of these drugs, according to new ...

Sep 12, 2014
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Researchers develop new tool to prevent heroin deaths

A new, lifesaving product aimed at reducing the death toll from heroin abuse—developed by a professor at the University of Kentucky College of Pharmacy—is in its final round of clinical trials and has received Fast Track ...

Aug 07, 2014
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Opioid

An opioid is a psychoactive chemical that works by binding to opioid receptors, which are found principally in the central and peripheral nervous system and the gastrointestinal tract. The receptors in these organ systems mediate both the beneficial effects and the side effects of opioids.

Opioids are among the world's oldest known drugs; the use of the opium poppy for its therapeutic benefits predates recorded history. The analgesic (painkiller) effects of opioids are due to decreased perception of pain, decreased reaction to pain as well as increased pain tolerance. The side effects of opioids include sedation, respiratory depression, constipation, and a strong sense of euphoria. Opioids can cause cough suppression, which can be both an indication for opioid administration or an unintended side effect. Opioid dependence can develop with ongoing administration, leading to a withdrawal syndrome with abrupt discontinuation. Opioids are well known for their ability to produce a feeling of euphoria, motivating some to recreationally use opioids.

Although the term opiate is often used as a synonym for opioid, the term opiate is properly limited to the natural alkaloids found in the resin of the opium poppy (Papaver somniferum). In some definitions, the semi-synthetic substances that are directly derived from the opium poppy are considered to be opiates as well, while in other classification systems these substances are simply referred to as semi-synthetic opioids.

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