What is Eluxadoline: Uses, Dosage, Side Effects and More

Eluxadoline is a prescription medication specifically designed to treat irritable bowel syndrome with diarrhea (IBS-D) in adults. This targeted treatment works by regulating bowel movements and reducing the cramping and urgency that can make daily life challenging for people with IBS-D.

If you've been struggling with frequent diarrhea, abdominal pain, and the unpredictable nature of IBS symptoms, eluxadoline represents a newer approach to managing these concerns. It's part of a medication class that works directly on your intestinal system to help restore more normal bowel function.

What is Eluxadoline?

Eluxadoline is a dual-acting medication that targets specific receptors in your intestinal tract to control IBS-D symptoms. It belongs to a class of drugs called mixed opioid receptor modulators, which means it works on the same pathways that control pain and bowel function, but in a very targeted way.

Unlike some older IBS treatments that work throughout your entire body, eluxadoline is designed to act primarily in your digestive system. This focused approach helps minimize effects on other parts of your body while addressing the root mechanisms that cause IBS-D symptoms.

The medication received FDA approval in 2015, making it one of the newer options available for people whose IBS-D symptoms haven't responded well to dietary changes or other treatments.

What is Eluxadoline Used For?

Eluxadoline is specifically prescribed for adults with irritable bowel syndrome with diarrhea (IBS-D). This condition affects millions of people and involves a combination of abdominal pain, cramping, and frequent loose or watery stools that can significantly impact your quality of life.

Your doctor might consider eluxadoline if you experience recurring episodes of diarrhea along with abdominal discomfort that lasts for at least six months. The medication is particularly helpful for people who have three or more loose stools per day on average, combined with the urgent need to have bowel movements.

It's important to understand that eluxadoline isn't used for other types of IBS, such as IBS with constipation (IBS-C) or mixed IBS patterns. The medication is also not appropriate for treating acute diarrhea from infections, food poisoning, or other temporary causes.

How Does Eluxadoline Work?

Eluxadoline works by interacting with three different types of opioid receptors in your intestinal tract, each playing a specific role in controlling bowel function. This makes it what doctors call a "mixed opioid receptor modulator" - it can both activate and block different receptors depending on what your body needs.

The medication activates mu-opioid and delta-opioid receptors, which help slow down the movement of contents through your intestines and reduce the secretion of fluids. At the same time, it blocks kappa-opioid receptors, which helps prevent some of the side effects you might experience with traditional opioid medications.

This balanced approach means eluxadoline can help firm up your stools and reduce the frequency of bowel movements without causing the constipation or dependency issues associated with stronger opioid medications. The medication is considered moderately effective rather than extremely potent, which makes it safer for long-term use in managing chronic IBS-D.

How Should I Take Eluxadoline?

Eluxadoline should be taken exactly as prescribed by your doctor, typically twice daily with food. Taking it with meals is important because food helps your body absorb the medication properly and can reduce the risk of certain side effects.

The standard starting dose is usually 100 mg twice daily, but your doctor might prescribe a lower dose of 75 mg twice daily if you have certain risk factors. These include a history of gallbladder problems, liver issues, or if you're taking other medications that might interact with eluxadoline.

You should take each dose with a substantial meal rather than just a snack. This means having the medication with breakfast and dinner, or lunch and dinner, depending on your eating schedule. The food doesn't need to be high-fat or heavy, but it should be a regular-sized meal to help your body process the medication effectively.

If you forget a dose, don't double up on your next dose. Simply take your next scheduled dose with food as usual. Taking extra medication won't make it work better and could increase your risk of side effects.

How Long Should I Take Eluxadoline For?

The length of eluxadoline treatment varies from person to person and depends on how well you respond to the medication and how it fits into your overall IBS management plan. Many people take it for several months to years as part of their long-term IBS-D management strategy.

Your doctor will likely want to check in with you after the first few weeks to see how you're responding to the medication. Some people notice improvements in their symptoms within the first week, while others may need several weeks to experience the full benefits.

Because IBS-D is typically a chronic condition, eluxadoline is designed for long-term use rather than short-term relief. However, your doctor might recommend periodic breaks from the medication to assess whether your symptoms have improved on their own or if you still need the treatment.

Never stop taking eluxadoline suddenly without talking to your doctor first, especially if you've been taking it for several months. While it's not habit-forming in the traditional sense, stopping abruptly might cause your IBS-D symptoms to return more intensely.

What Are the Side Effects of Eluxadoline?

Like all medications, eluxadoline can cause side effects, though not everyone experiences them. Understanding what to expect can help you feel more prepared and know when to contact your healthcare provider.

The most common side effects are generally mild and tend to improve as your body adjusts to the medication over the first few weeks of treatment.

Common side effects you might experience include:

• Constipation (the most frequent side effect, affecting about 8% of people)
• Nausea, which usually improves when taken with food
• Abdominal pain or cramping, often milder than your original IBS symptoms
• Upper respiratory tract infections like colds
• Vomiting, particularly in the first few days of treatment
• Flatulence or increased gas

These common side effects are usually manageable and often decrease as your body gets used to the medication. Most people find that taking eluxadoline with adequate food helps reduce nausea and stomach upset.

More serious side effects are rare but require immediate medical attention:

• Severe abdominal pain that doesn't improve or gets worse
• Pancreatitis (inflammation of the pancreas), which causes intense stomach pain that may radiate to your back
• Severe constipation lasting more than a few days
• Sphincter of Oddi spasm, causing severe upper abdominal pain
• Signs of allergic reaction like rash, difficulty breathing, or swelling

If you experience any severe abdominal pain, especially if it's accompanied by nausea, vomiting, or fever, contact your doctor immediately. These could be signs of pancreatitis, which is a serious but rare complication that requires prompt medical care.

Who Should Not Take Eluxadoline?

Eluxadoline isn't safe for everyone, and there are several important conditions and situations where your doctor won't prescribe this medication. Being honest about your medical history helps ensure you get the safest and most effective treatment.

You should not take eluxadoline if you have certain digestive or liver conditions that could make the medication dangerous for you.

Absolute contraindications include:

• No gallbladder (cholecystectomy) - this significantly increases your risk of pancreatitis
• Known or suspected biliary duct obstruction
• Sphincter of Oddi dysfunction or spasm
• Severe liver problems (hepatic impairment)
• History of pancreatitis
• Severe kidney disease
• Chronic or severe constipation
• Known intestinal blockage

Your doctor will also be cautious about prescribing eluxadoline if you have a history of alcohol abuse, as this can increase your risk of pancreatitis. Additionally, if you're taking certain medications that affect the same liver enzymes that process eluxadoline, your doctor might choose a different treatment option.

Special considerations apply for:

• People over 65, who may be more sensitive to side effects
• Those with mild to moderate liver problems
• Anyone taking medications that interact with eluxadoline
• People with a history of substance abuse
• Those who are pregnant or breastfeeding

If you're pregnant or planning to become pregnant, discuss this with your doctor. While eluxadoline hasn't been extensively studied in pregnant women, it's generally not recommended during pregnancy unless the benefits clearly outweigh the risks.

Eluxadoline Brand Names

Eluxadoline is available under the brand name Viberzi in the United States. This is currently the only brand name version available, as the medication is still relatively new and generic versions aren't yet widely available.

When your doctor prescribes eluxadoline, they'll typically write the prescription for Viberzi, which comes in two strengths: 75 mg and 100 mg tablets. Both strengths are oval-shaped tablets that you take by mouth with food.

If you're looking for your medication at the pharmacy or discussing it with your healthcare team, you might hear both names used interchangeably. Some insurance plans may list it under the generic name eluxadoline, while others use the brand name Viberzi in their formularies.

Eluxadoline Alternatives

If eluxadoline isn't right for you or doesn't provide adequate symptom relief, several other treatment options are available for managing IBS-D. Your doctor can help you explore these alternatives based on your specific symptoms and medical history.

Other prescription medications for IBS-D include alosetron (Lotronex), which is specifically for women with severe IBS-D, and rifaximin (Xifaxan), an antibiotic that can help reset your gut bacteria. There's also loperamide (Imodium), an over-the-counter option that many people try before moving to prescription treatments.

Non-medication approaches that can complement or sometimes replace eluxadoline include:

• Dietary modifications like the low-FODMAP diet
• Probiotics to support healthy gut bacteria
• Stress management techniques including therapy or meditation
• Regular exercise and sleep hygiene
• Soluble fiber supplements
• Antispasmodic medications for cramping

Many people find that combining medication with lifestyle changes provides the best long-term results. Your doctor might recommend starting with eluxadoline while also working on dietary triggers and stress management techniques.

Is Eluxadoline Better Than Loperamide?

Eluxadoline and loperamide (Imodium) work differently and serve different roles in IBS-D treatment, so comparing them isn't straightforward. The "better" option depends on your specific symptoms, severity, and how well you respond to each medication.

Loperamide is an over-the-counter medication that primarily slows down gut movement to reduce diarrhea. It's often the first treatment people try because it's readily available and inexpensive. However, it mainly addresses the diarrhea component of IBS-D without targeting the abdominal pain and cramping that many people experience.

Eluxadoline, on the other hand, is designed to address both the diarrhea and the abdominal pain aspects of IBS-D. This dual action can make it more effective for people who have significant cramping and discomfort along with their bowel symptoms.

Many doctors recommend trying loperamide first, especially for occasional symptom flares, before moving to prescription options like eluxadoline. If loperamide doesn't provide adequate relief or if you need daily medication to manage your symptoms, eluxadoline might be a better long-term solution.

Some people find that they can use both medications strategically - eluxadoline for daily management and loperamide for breakthrough symptoms or particularly challenging days. Always discuss this approach with your doctor before combining treatments.