Relistor for Opioid-induced constipation
Quick answer: Relistor is used for Opioid-induced constipation as part of a peripherally acting mu-opioid receptor antagonist (pamora) treatment regimen. Selectively blocks peripheral mu-opioid receptors in the gut without crossing the blood-brain barrier, restoring bowel motility without reversing analgesia The specific dosing for Opioid-induced constipation is determined by your prescriber based on individual factors.
Why is Relistor used for Opioid-induced constipation?
Relistor belongs to the Peripherally acting mu-opioid receptor antagonist (PAMORA) class. Selectively blocks peripheral mu-opioid receptors in the gut without crossing the blood-brain barrier, restoring bowel motility without reversing analgesia This action makes it useful for treating or managing Opioid-induced constipation in patients for whom this approach is clinically appropriate.
It is one of several treatment options. Whether Relistor is the right choice for a specific patient depends on the type and severity of Opioid-induced constipation, response to previous treatments, individual risk factors, and clinical guidelines.
Typical dosing for Opioid-induced constipation
Common adult dosing range: 12 mg SC once daily or 450 mg orally once daily. The actual dose for Opioid-induced constipation depends on:
- Severity of the condition
- Patient's age, weight, and organ function
- Other medications being taken
- Treatment response and tolerability
For complete dosing details, see the Relistor medicine page.
What to expect
Relistor treatment for Opioid-induced constipation typically involves:
- Onset of effect: varies by indication and dose — some effects are immediate, others take days to weeks
- Treatment duration: some courses are short-term, others are long-term or lifelong depending on Opioid-induced constipation
- Monitoring: follow-up visits to assess response and adjust dosing
- Side-effect awareness: learning what to expect and what warrants medical attention
Alternatives to consider
If Relistor is not appropriate or not tolerated, alternatives within the same class or different therapeutic classes may be considered. See all Peripherally acting mu-opioid receptor antagonist (PAMORA) for related options.
When to talk to your doctor
Discuss with your prescriber if you experience:
- Inadequate symptom control on Relistor
- Side effects affecting daily life
- New medications or supplements that may interact
- Pregnancy planning or pregnancy
- Major changes in health status
Related information
Relistor full prescribing information · All Peripherally acting mu-opioid receptor antagonist (PAMORA) alternatives
Frequently asked questions
How effective is Relistor for Opioid-induced constipation?
Effectiveness varies by individual response, dose, and severity. Relistor is one of several treatment options for Opioid-induced constipation, supported by clinical evidence within the peripherally acting mu-opioid receptor antagonist (pamora) class. Discuss expected response with your prescriber.
How long do I need to take Relistor for Opioid-induced constipation?
Treatment duration depends on the nature of Opioid-induced constipation — some treatments are short-term, others long-term or lifelong. Never stop on your own; discontinuation requires clinical guidance to avoid relapse or rebound effects.
What are the main side effects of Relistor when used for Opioid-induced constipation?
Common and serious side effects are class-related and substance-specific. See the full medicine page for the complete profile. Report any unexpected effects to your prescriber.
Are there alternatives to Relistor for Opioid-induced constipation?
Yes. Multiple medicines and non-drug options exist for Opioid-induced constipation. Alternatives within the peripherally acting mu-opioid receptor antagonist (pamora) class share mechanisms; other classes may offer different approaches. Discuss with your clinician.
Last reviewed: by iMedic Medical Editorial Team. Our editorial process.