Final answer:
Constipation prophylaxis is necessary when opioids are dosed continuously, as opioids can cause constipation by reducing gastrointestinal motility. Proactive measures should be taken to prevent this side effect, which can affect a patient's quality of life, regardless of the dosing frequency.
Step-by-step explanation:
Constipation prophylaxis is indeed required when opioids are dosed continuously. Opioids can cause constipation by reducing gastrointestinal motility. It is important to manage this side effect no matter the dosing schedule or quantity, as it can significantly impact a patient's quality of life. Whether opioids are given on a fixed schedule or as needed, prophylactic measures such as increased fiber intake, hydration, and possible use of stool softeners or laxatives can be beneficial in preventing constipation.