PlainMeds provides educational information only. This is not medical advice. Always consult your doctor or pharmacist.

eluxadoline vs gemfibrozil

Side-by-side comparison of eluxadoline and gemfibrozil. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

moderate Known Drug Interaction

Examples: cyclosporine, gemfibrozil, antiretrovirals (atazanavir, lopinavir, ritonavir, saquinavir, tipranavir), rifampin, eltrombopag Drugs that Cause Constipation Clinical Impact: Increased risk for constipation related adverse reactions and potential for constipation related serious adverse reactions Intervention: Avoid use with other drugs that may cause constipation (see below); loperamide may be used occasionally for acute management of severe diarrhea but avoid chronic use.

Recommendation: Avoid using these medications together to reduce the risk of serious bowel issues.

Drug Class
eluxadoline Mu-Opioid Receptor Agonist (IBS-D)
gemfibrozil Fibrate
Type
eluxadoline Prescription
gemfibrozil Prescription
Summary
eluxadoline

Viberzi is a medicine used to treat irritable bowel syndrome with diarrhea (IBS-D) in adults. It helps to reduce diarrhea associated with IBS-D.

gemfibrozil

Gemfibrozil is a medicine that helps lower high triglyceride levels in your blood. It can also help reduce the risk of heart disease in some people.

What It Treats
eluxadoline

Viberzi is used to treat irritable bowel syndrome with diarrhea, also known as IBS-D, in adults. IBS-D can cause stomach pain, bloating, and frequent bowel movements. This medicine can help reduce diarrhea and other symptoms of IBS-D.

gemfibrozil

This medicine is used to treat very high triglyceride levels in adults when diet alone doesn't work. High triglycerides can increase your risk of pancreatitis. Gemfibrozil can also lower the risk of heart disease in some people with specific cholesterol problems.

How It Works
eluxadoline

Viberzi works by acting on opioid receptors in your gut. It slows down bowel movements. This helps to reduce diarrhea and abdominal pain.

gemfibrozil

Gemfibrozil belongs to a class of drugs called fibrates. It works by decreasing the amount of triglycerides your body makes. It also helps to increase HDL (good) cholesterol.

Common Side Effects
eluxadoline
  • Constipation
  • Nausea
  • Abdominal pain
gemfibrozil
  • Upset stomach
  • Indigestion
  • Abdominal pain
FAERS Reports
eluxadoline
  • Stomach pain 348
  • Diarrhea 340
  • Constipation 281
  • Inflammation of the pancreas 276
  • Feeling sick to your stomach 216
gemfibrozil
  • Feeling sick to your stomach 882
  • Feeling tired 826
  • Loose stools 726
  • Aches 692
  • Feeling lightheaded 617
Serious Warnings
eluxadoline

Viberzi can cause serious side effects, including pancreatitis and sphincter of Oddi spasm. These conditions can cause severe abdominal pain, nausea, and vomiting. If you have new or worsening abdominal pain, stop taking Viberzi and get medical help right away. Do not take Viberzi if you do not have a gallbladder.

gemfibrozil

This medicine may increase your risk of gallbladder problems, including the need for surgery. Before taking gemfibrozil, tell your doctor if you have liver or kidney problems. You should not take this medicine with simvastatin, repaglinide, dasabuvir, or selexipag.

Pregnancy
eluxadoline

It is not known if Viberzi can harm an unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is also not known if Viberzi passes into breast milk. Talk to your doctor about the best way to feed your baby if you take Viberzi.

gemfibrozil

Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. It is not known if gemfibrozil can harm your unborn baby. It is also not known if gemfibrozil passes into breast milk.

Also Compare, Nearby Drugs

Compare gemfibrozil with

How to Read This eluxadoline vs gemfibrozil Comparison

eluxadoline is classified in the Mu-Opioid Receptor Agonist (IBS-D) drug class, while gemfibrozil sits within the Fibrate class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, eluxadoline has 1,461 submissions while gemfibrozil has 3,743. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known moderate interaction flagged in FDA labeling, attributed to both drugs can cause constipation as a side effect, making it much more likely to happen if they are taken at the same time.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between eluxadoline and gemfibrozil - always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.