News tagged with opioids

Related topics: pain

Opioids regulate spermatozoon formation

Infertility has become a major medical and social problem worldwide and due in part to male infertility. Yet the molecular mechanisms involved in spermatogenesis are only now beginning to emerge. A piece of research led by ...

Jun 09, 2016
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Opioids are not necessarily evil

Since 1999, the use of opioids for pain management has quadrupled in the USA, resulting in what is now well known as the 'opioid epidemic'—too many Americans are now unnecessarily reliant on the drugs and opioid-related ...

Jun 01, 2016
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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.

This text uses material from Wikipedia, licensed under CC BY-SA

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