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

Vedolizumab is a targeted medication that helps calm inflammation in your gut when you have certain digestive conditions. Think of it as a specialized treatment that works specifically in your intestines, rather than affecting your whole immune system like some other medications do.

This medicine comes in two forms - as an IV infusion you receive at a clinic or hospital, and as an injection you can give yourself at home under the skin. It's designed for people with inflammatory bowel diseases who need ongoing treatment to keep their symptoms under control.

What is Vedolizumab Used For?

Vedolizumab treats two main conditions that cause chronic inflammation in your digestive system. Your doctor prescribes it when other treatments haven't worked well enough or when you need a more targeted approach.

The primary use is for ulcerative colitis, a condition where the lining of your large intestine becomes inflamed and develops sores. This can cause symptoms like bloody diarrhea, cramping, and urgency to use the bathroom frequently.

It's also used for Crohn's disease, which can cause inflammation anywhere in your digestive tract from mouth to anus. People with Crohn's often experience abdominal pain, diarrhea, weight loss, and fatigue that can significantly impact daily life.

Your doctor might consider vedolizumab if you have moderate to severe symptoms that other medications like steroids or immunosuppressants haven't controlled adequately. It's particularly helpful for people who want to avoid some of the broader immune system effects of other treatments.

How Does Vedolizumab Work?

Vedolizumab works by blocking specific immune cells from entering your gut tissue where they cause inflammation. It's considered a moderately strong medication that targets inflammation very precisely.

The drug attaches to a protein called alpha-4 beta-7 integrin on certain white blood cells. This prevents these inflammatory cells from traveling into your intestinal lining, which is where they would normally cause damage and symptoms.

What makes vedolizumab unique is its gut-selective action. Unlike some other immune-suppressing medications that affect your entire immune system, this one primarily works in your digestive tract. This targeted approach can mean fewer side effects in other parts of your body.

You might start noticing improvements in your symptoms within a few weeks, but it can take up to 14 weeks to see the full benefits. Some people respond faster than others, and your doctor will monitor your progress closely during this time.

How Should I Take Vedolizumab?

The way you take vedolizumab depends on which form your doctor prescribes. Both the IV and injection forms are equally effective, but the choice depends on your lifestyle, preferences, and specific medical needs.

For the IV form, you'll receive treatments at a medical facility where healthcare professionals will monitor you. The infusion typically takes about 30 minutes, and you'll need to stay for observation afterward. You don't need to fast beforehand, and you can eat normally before and after your treatment.

If you're using the subcutaneous injections, you'll give yourself shots under the skin, usually in your thigh or abdomen. Your healthcare team will teach you the proper technique and rotation of injection sites. Keep these injections refrigerated and let them come to room temperature before injecting.

Take your medication exactly as scheduled, even if you're feeling better. Skipping doses can lead to flare-ups of your condition. If you have any concerns about the injection process or experience problems at the infusion site, contact your healthcare provider right away.

How Long Should I Take Vedolizumab For?

Vedolizumab is typically a long-term treatment that you may need to continue for months or years. The exact duration depends on how well you respond and how your condition progresses over time.

Most people start with an induction phase where they receive more frequent doses to get inflammation under control. This usually involves treatments at weeks 0, 2, and 6 for the IV form. After this initial period, you'll move to maintenance dosing every 8 weeks.

Your doctor will regularly assess whether the medication is working for you through blood tests, imaging studies, and monitoring your symptoms. If you're doing well and staying in remission, you might continue the treatment indefinitely to prevent flare-ups.

Some people can eventually reduce their dosing frequency or stop the medication if they achieve sustained remission. However, this decision should always be made carefully with your doctor, as stopping too early can lead to return of symptoms.

What Are the Side Effects of Vedolizumab?

Most people tolerate vedolizumab well, but like all medications, it can cause side effects. The good news is that serious side effects are relatively uncommon, and many people experience only mild or no side effects.

Common side effects you might experience include headache, joint pain, nausea, and fatigue. These usually improve as your body adjusts to the medication. Some people also notice cold-like symptoms such as stuffy nose or sore throat.

Here are the more frequent side effects that affect some people taking vedolizumab:

• Headaches that may come and go during treatment
• Joint aches or muscle pain, especially in the first few weeks
• Nausea or stomach upset after doses
• Fatigue or feeling more tired than usual
• Upper respiratory symptoms like congestion or cough
• Skin reactions at injection sites (for subcutaneous form)

These common effects usually don't require stopping the medication and often improve with time. However, always discuss any persistent or bothersome symptoms with your healthcare provider.

More serious side effects can occur but are less common. Because vedolizumab affects your immune system, you might be more susceptible to certain infections, particularly in your digestive tract.

Rare but serious side effects that require immediate medical attention include:

• Signs of serious infection like persistent fever, severe abdominal pain, or unusual fatigue
• Severe allergic reactions during or shortly after infusions
• New or worsening liver problems (yellowing of skin or eyes, dark urine)
• Progressive multifocal leukoencephalopathy (PML) - an extremely rare brain infection
• Severe skin reactions or rashes

While these serious effects are uncommon, your doctor will monitor you regularly with blood tests and clinical evaluations to catch any problems early.

Who Should Not Take Vedolizumab?

Vedolizumab isn't right for everyone, and your doctor will carefully evaluate whether it's safe for you. Certain medical conditions or circumstances make this medication inappropriate or require special precautions.

You should not take vedolizumab if you have an active, serious infection anywhere in your body. This includes bacterial, viral, fungal, or parasitic infections that need treatment. The medication can make it harder for your body to fight infections effectively.

People with certain liver problems should avoid vedolizumab or use it with extreme caution. If you have active hepatitis B or C, or severe liver disease, your doctor will need to carefully weigh the risks and benefits.

Here are conditions that may make vedolizumab unsuitable for you:

• Active tuberculosis or other serious infections
• History of PML (progressive multifocal leukoencephalopathy)
• Severe liver disease or active viral hepatitis
• Known allergy to vedolizumab or its components
• Certain immune system disorders that increase infection risk
• Recent live vaccines (you'll need to wait before starting treatment)

Pregnancy and breastfeeding require special consideration. While vedolizumab may be used during pregnancy when benefits outweigh risks, this decision needs careful discussion with your healthcare team.

Your doctor will also consider your overall health, other medications you're taking, and your specific medical history before recommending vedolizumab. Be sure to share your complete medical history during your consultation.

Vedolizumab Brand Names

Vedolizumab is sold under the brand name Entyvio in most countries including the United States. This is the name you'll see on your prescription and medication packaging.

Whether you receive the IV infusion or subcutaneous injection, both forms are marketed under the same Entyvio brand name. The packaging and labeling will indicate which form you're receiving and provide specific instructions for that formulation.

Some countries may have different brand names or generic versions available, so always check with your pharmacist or healthcare provider if you have questions about your specific medication. The active ingredient remains the same regardless of the brand name.

Vedolizumab Alternatives

Several other medications can treat inflammatory bowel diseases if vedolizumab isn't right for you or doesn't work well enough. Your doctor will consider your specific condition, symptoms, and medical history when discussing alternatives.

Other biologic medications work similarly to vedolizumab but target different parts of the immune system. These include adalimumab (Humira), infliximab (Remicade), and ustekinumab (Stelara), each with their own benefits and side effect profiles.

Non-biologic alternatives include immunosuppressants like azathioprine, methotrexate, or 6-mercaptopurine. These medications work differently than vedolizumab and may be suitable if you can't use biologic treatments.

Traditional treatments like corticosteroids or aminosalicylates (like mesalamine) might also be options for some people, especially for milder disease or as bridging therapy. Your doctor will help you understand which alternatives might work best for your situation.

Is Vedolizumab Better Than Adalimumab?

Both vedolizumab and adalimumab are effective treatments for inflammatory bowel diseases, but they work in different ways and may be better suited for different people. There's no universal "better" choice - it depends on your individual circumstances.

Vedolizumab is gut-selective, meaning it primarily works in your digestive system, while adalimumab affects your entire immune system. This makes vedolizumab potentially safer for people concerned about infections or other immune-related side effects.

Studies show that both medications are similarly effective for treating ulcerative colitis and Crohn's disease. However, some people respond better to one than the other, and it's not always predictable which will work best for you.

The choice between these medications often comes down to factors like your lifestyle preferences (injections vs. infusions), side effect tolerance, other health conditions, and previous treatment responses. Your doctor will help you weigh these factors to make the best decision for your situation.