An opioid is a chemical substance that has a morphine-like action in the body. Its main use is for pain relief. The way that they work is to bind opioid receptors that are found in th central nervous system and in the gastrointestinal tract. The receptors in these organ systems mediate both the beneficial effects and the undesirable side effects. There are four classes narcotics:
Endogenous peptides-these are produced naturally in the body
Opiates-processed morphine
Semi-synthetic opioids-hydromorphone & oxycodone
Fully-synthetic opioids-produced byb fentanyl and methadone
There are common adverse reactions by patients that take opioids for their pain relief they are nausea, drowsiness, vomiting, consitipation, and having a dry mouth. Adverse reactions in patients that take opioids that infrequently happen and are usually dose-related are respiratory depression, confusion, hallucinations, delirium, hypothermia, bradycardia (low heartrate), tachycardia (fast heartrate), dizziness, headache, urinary retention, and muscle rigidity. Some patients can experience hyperalgesia, this is when a patient that is using opiods as pain relief has pain as a result of their medication.
Both therapeutic and chronic use of opioids can compromise the function of the immune system. Other concerns about opioids are tolerance, dependence, addiction, and abuse. The issuses can cause doctors and patients concerns and they are the most common reason for which inadequate use of analgesia for patients with chronic pain. Putting these issues into the context of analgesia is important.
Tendency for the body to adapt to the presence of opioids it is a common reaction to all chemicals, even caffeine. Dependence is the tendency of the body to mainifest a characteristic and unpleasant withdrawal syndrome if regular doses of opioids are abruptly discontinued after tolerance has developed. Psychological cravings of certian effects opioids has is an addiction for example euphoria, many people experience this when their drugs are taken in big doses. And abuse is the misuse of opioids in the context of addiction.
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What Are the Adverse Effects of Opioids?
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