Opioidergic

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Opioidergic refers to the physiological processes and systems that involve opioids, a class of drugs that include substances such as morphine, heroin, oxycodone, and fentanyl. These drugs are known for their analgesic (pain-relieving) effects and their potential for addiction and dependence. The opioidergic system is a critical component of the human body's pain management and reward systems.

Opioids[edit | edit source]

Opioids are a class of drugs that include both legal medications like morphine, oxycodone, hydrocodone, and fentanyl, as well as illegal drugs like heroin. They work by binding to opioid receptors in the brain, spinal cord, and other areas of the body to reduce the perception of pain. Opioids can also produce feelings of euphoria, which contributes to their potential for misuse and addiction.

Opioid Receptors[edit | edit source]

Opioid receptors are a group of inhibitory G protein-coupled receptors with opioids as endogenous ligands. There are three types of opioid receptors: mu, delta, and kappa, each with different functions and binding affinities for different opioids. The mu-opioid receptor is the primary site of action for the most commonly used opioids, including morphine and heroin.

Opioidergic System[edit | edit source]

The opioidergic system refers to the body's system of neurons that produce and respond to endogenous opioids. This system is involved in a variety of physiological processes, including pain regulation, reward, and addiction. Disruptions in the opioidergic system, such as through the misuse of opioids, can lead to a variety of health problems, including opioid use disorder.

Opioid Use Disorder[edit | edit source]

Opioid Use Disorder (OUD) is a chronic, relapsing illness, characterized by a dependence on opioids, such as heroin or prescription pain relievers, that leads to significant impairment or distress. Symptoms of OUD can include strong desire for opioids, inability to control or reduce use, persistent use despite negative consequences, and withdrawal symptoms when opioids are not taken.

Treatment[edit | edit source]

Treatment for opioid use disorder often involves a combination of medication, counseling, and behavioral therapies. Medications used in treatment can include buprenorphine, methadone, and naltrexone, which work by targeting the opioid receptors in the brain to reduce cravings and withdrawal symptoms.

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Contributors: Prab R. Tumpati, MD