Does Suboxone Cause Constipation? Why It Happens and What Helps

Taking Suboxone and experiencing constipation? Talk to a healthcare provider about your treatment.

Yes, Suboxone can cause constipation. Buprenorphine, one of its active ingredients, affects opioid receptors in the digestive tract and slows intestinal movement. This can lead to harder stools, fewer bowel movements, bloating, and difficulty passing stool. Although constipation may continue during treatment, dietary changes, appropriate medications, and guidance from your healthcare provider can help manage symptoms without interrupting your recovery.

Medical content reviewed by Dr. Bethany Berrios, DNP, Chief Nursing Officer at DevotedDOc. This article is for educational purposes only and is not a substitute for personal medical advice. Always follow your healthcare provider’s instructions, and never start, stop, or change your Suboxone dose without medical guidance.

Does Suboxone Cause Constipation?

Constipation is a recognized side effect of Suboxone, a prescription medication containing buprenorphine and naloxone. While Suboxone helps manage opioid withdrawal symptoms and cravings, buprenorphine can also affect normal digestive function.

According to the FDA prescribing information for Suboxone, constipation is among the adverse reactions reported during treatment. However, not everyone experiences this side effect, and its severity can vary depending on medication dosage, digestive health, diet, and other factors.

Some patients notice constipation shortly after starting treatment, while others experience symptoms following a dosage adjustment or during long-term use. Understanding how Suboxone and buprenorphine work can help explain why digestive side effects occur.

How Common Is Constipation With Suboxone?

Constipation is a well-documented gastrointestinal side effect of buprenorphine-containing medications. However, there is no single percentage that accurately represents the risk for everyone taking Suboxone because clinical studies involve different formulations, dosages, and patient populations.

Some people experience occasional difficulty passing stool, while others develop persistent constipation that requires treatment. If your bowel habits change significantly after starting Suboxone, discuss your symptoms with your healthcare provider.

Why Does Suboxone Cause Constipation?

Suboxone causes constipation primarily because buprenorphine activates opioid receptors in the gastrointestinal tract. These receptors influence how intestinal muscles contract and move waste through the digestive system.

When intestinal movement slows, stool remains in the colon longer. The colon absorbs more water from the stool, making it harder, drier, and more difficult to pass. This condition is known as opioid-induced constipation (OIC).

How Buprenorphine Affects Digestion

Buprenorphine is a partial opioid agonist, meaning it activates opioid receptors differently from full opioid agonists such as morphine or oxycodone. However, its partial agonist activity does not eliminate gastrointestinal side effects.

Even though Suboxone film dissolves under the tongue or inside the cheek, buprenorphine enters the bloodstream and can affect opioid receptors throughout the body, including those in the digestive tract.

Does Suboxone Constipation Go Away Over Time?

Some medication side effects become less noticeable as the body adjusts, but opioid-induced constipation can persist throughout treatment. The digestive system may not develop the same degree of tolerance to constipation as it does to certain other opioid effects.

This does not mean constipation will always continue. Some patients improve with dietary adjustments, increased activity, or appropriate medication, while others require ongoing management.

What Are the Symptoms of Suboxone-Related Constipation?

Constipation involves more than having fewer bowel movements. You may also notice changes in stool consistency, difficulty passing stool, or discomfort during bowel movements.

Common symptoms include:

• Fewer bowel movements: Going less frequently than usual.
• Hard or dry stools: Passing stool that is difficult or uncomfortable to eliminate.
• Straining: Needing extra effort during bowel movements.
• Bloating: Feeling unusually full or swollen in the abdomen.
• Incomplete bowel movements: Feeling that your bowels have not emptied completely.
• Abdominal discomfort: Mild cramping or pressure associated with constipation.

These symptoms can also result from dehydration, dietary changes, other medications, or underlying digestive conditions. Your healthcare provider can help determine whether Suboxone is the primary cause.

Can Suboxone Cause Severe Constipation?

Yes. Persistent constipation can sometimes lead to complications such as hemorrhoids, anal fissures, or fecal impaction, which occurs when hardened stool becomes difficult to pass.

Severe abdominal pain, repeated vomiting, significant abdominal swelling, or an inability to pass gas may indicate a more serious condition, including bowel obstruction. These symptoms require urgent medical evaluation rather than continued home treatment.

Suboxone Constipation Treatment: What Helps?

Managing Suboxone-related constipation often begins with changes to daily habits. For mild symptoms, increasing appropriate dietary fiber, drinking enough fluids, and maintaining regular physical activity may help support bowel movements.

The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) recommends several approaches to constipation management, including dietary changes, physical activity, and medications when necessary.

Increase Fiber and Stay Hydrated

Fiber helps support regular bowel movements by adding bulk to stool and helping it retain water. Foods such as oats, vegetables, fruits, beans, and whole grains are useful sources of dietary fiber.

However, increasing fiber too quickly can cause bloating or discomfort. Fiber supplements may also be less effective when constipation is primarily caused by slowed intestinal movement. If you have severe constipation or abdominal swelling, consult your healthcare provider before increasing fiber.

Drinking enough fluids can also help prevent stool from becoming excessively hard. The NIDDK’s dietary guidance for constipation explains how fiber and adequate fluid intake support bowel health. Follow any fluid restrictions recommended for other medical conditions.

Stay Active and Establish a Bathroom Routine

Regular physical activity may help support normal digestive function. Walking, stretching, and other activities appropriate for your health can be useful additions to a constipation management plan.

Developing consistent bathroom habits may also help. Try setting aside time after breakfast or another meal, when digestive activity naturally increases, and avoid repeatedly delaying bowel movements when you feel the urge.

What Medications Can Help With Suboxone Constipation?

When lifestyle changes are not enough, over-the-counter or prescription medications may help relieve constipation. The most appropriate treatment depends on symptom severity, other medications, and whether a more serious gastrointestinal condition is present.

Over-the-Counter Laxatives

Polyethylene glycol (PEG), commonly sold as MiraLAX, is an osmotic laxative that draws water into the intestines to help soften stool and promote bowel movements. It may be recommended when dietary and lifestyle changes do not provide enough relief.

Other options include stimulant laxatives such as senna or bisacodyl. Stool softeners such as docusate are also available, although evidence supporting their effectiveness as a stand-alone treatment for opioid-induced constipation is limited.

Do not assume every laxative is appropriate for long-term use. Follow product instructions and ask your healthcare provider or pharmacist which option best fits your symptoms.

Prescription Medications for Opioid-Induced Constipation

If constipation persists despite appropriate laxative treatment, your healthcare provider may consider prescription medications specifically designed for opioid-induced constipation.

These include peripherally acting mu-opioid receptor antagonists (PAMORAs), such as naloxegol, naldemedine, and methylnaltrexone. These medications work by blocking certain opioid effects in the digestive tract, helping restore bowel movement activity.

However, PAMORA approvals and supporting clinical evidence primarily involve patients receiving opioids for pain management. Their use specifically for constipation during buprenorphine treatment for opioid use disorder may be off-label, depending on the medication and clinical circumstances.

Clinical guidance from the American Gastroenterological Association on opioid-induced constipation discusses prescription treatment options for patients whose symptoms do not respond adequately to conventional laxatives.

PAMORAs are not appropriate for everyone, particularly patients with known or suspected bowel obstruction. They may also cause gastrointestinal side effects or, in some cases, precipitate opioid withdrawal. Patients receiving Suboxone require an individualized clinical assessment to determine whether a PAMORA is appropriate, considering their medical history, current medications, potential risks, and recovery treatment plan.

Can Other Medications Make Suboxone Constipation Worse?

Yes. Certain medications can contribute to constipation, including some antihistamines, antidepressants, anticholinergic medications, iron supplements, and other drugs that affect gastrointestinal movement.

Taking multiple medications that cause constipation may make symptoms more noticeable. Reviewing potential Suboxone drug interactions is important because some combinations can also increase sedation or other medication-related risks.

Tell your healthcare provider about all prescription medications, over-the-counter products, and supplements you take. Do not stop prescribed medications or adjust your Suboxone dosage without medical guidance.

Should You Stop Taking Suboxone Because of Constipation?

Do not stop or change your Suboxone dosage on your own because of constipation. Suboxone is used to treat opioid use disorder, and interrupting treatment can lead to withdrawal symptoms, increased cravings, and a greater risk of returning to opioid use.

In many cases, constipation can be managed without discontinuing treatment. Your healthcare provider can evaluate whether symptoms are related to Suboxone, another medication, or an underlying digestive condition.

Understanding how long Suboxone stays in your system may help explain why medication effects can continue after a dose. However, the duration of medication activity does not necessarily determine how long constipation will last.

When Should You Contact Your Healthcare Provider?

Contact your healthcare provider if constipation continues despite appropriate self-care, becomes increasingly uncomfortable, or significantly changes your usual bowel habits. Rectal bleeding, unexplained weight loss, or persistent abdominal discomfort also warrant medical evaluation.

Seek urgent care for severe or worsening abdominal pain, repeated vomiting, marked abdominal swelling, or an inability to pass stool or gas, particularly when these symptoms occur together.

Managing Constipation During Long-Term Suboxone Treatment

Constipation can affect comfort and daily routines, especially during ongoing treatment for opioid use disorder. Discussing digestive symptoms during follow-up appointments can help prevent mild problems from becoming more difficult to manage.

Other concerns, including Suboxone and weight changes, may also arise during treatment. Tracking symptoms and discussing them with your healthcare provider can help ensure your care plan addresses your overall health.

With appropriate monitoring, lifestyle adjustments, and medication when necessary, many patients can manage constipation while continuing Suboxone treatment.

Frequently Asked Questions About Suboxone and Constipation

Does Suboxone make you constipated?

Yes. Buprenorphine in Suboxone can slow intestinal movement and cause constipation. The severity varies among patients.

How long does constipation from Suboxone last?

Constipation may persist during ongoing Suboxone treatment, although symptoms can improve with appropriate management. The duration depends on individual factors and treatment response.

What is the best Suboxone constipation remedy?

There is no single best remedy for everyone. Adequate hydration, gradual dietary changes, regular activity, and medications such as polyethylene glycol may help.

Can you take MiraLAX while taking Suboxone?

MiraLAX may be appropriate for some patients taking Suboxone. Ask your healthcare provider or pharmacist before using it, especially if constipation persists or you have other medical conditions.

Does Suboxone cause bloating and stomach pain?

Suboxone-related constipation can cause bloating, abdominal fullness, and discomfort. Severe or persistent abdominal pain requires medical evaluation.

Can Suboxone constipation become serious?

Yes. Persistent constipation can sometimes lead to fecal impaction or other complications. Severe abdominal pain, vomiting, or inability to pass gas requires urgent medical attention.

Get Support for Suboxone Side Effects and Recovery

Constipation can make everyday life uncomfortable, but it does not have to mean interrupting treatment for opioid use disorder. Understanding your symptoms and discussing appropriate relief options with a healthcare provider can help you manage side effects while maintaining recovery care.

DevotedDOc provides physician-led online treatment for opioid use disorder, including medication management and ongoing support. Your healthcare provider can help you address treatment concerns, including constipation and other medication-related side effects.

Ready to discuss your treatment options? Schedule your online visit with DevotedDOc and get support for your recovery.