What is a common side effect of opioids?

Opioids are known to cause several side effects due to their action on the central nervous system and gastrointestinal tract. One of the most common side effects associated with opioid use is nausea and vomiting. This occurs because opioids can affect the brain's vomiting center, leading to increased sensitivity to nausea and the sensation of needing to vomit.

Nausea and vomiting can be particularly problematic for patients, as they can lead to decreased medication adherence and an overall reduction in quality of life. It's important for healthcare providers to monitor patients on opioids for these side effects and to manage them appropriately.

While drowsiness is also a potential side effect of opioids, it is a more general term that may encompass a range of sedation effects rather than being specifically targeted. Insomnia and rash are less common, making nausea and vomiting one of the more definitive side effects that needs to be addressed in patients receiving opioid therapy.