What Is Plenvu? Uses, Dosage, and What You Need to Know in 2026

Plenvu Is a Prescription Bowel Prep Used Before Colonoscopy

Plenvu (polyethylene glycol 3350 with sodium ascorbate, sodium sulfate, ascorbic acid, sodium chloride, and potassium chloride) is a low-volume, FDA-approved bowel preparation solution. It's used to cleanse the colon before a colonoscopy so your doctor can get a clear view of the inside of your large intestine.

Unlike older bowel preps that require drinking a gallon of liquid, Plenvu uses a split-dose approach with significantly less volume — making it easier for many patients to complete.

What Is Plenvu?

Plenvu is an osmotic laxative made by Salix Pharmaceuticals, a Bausch Health company. It comes as a kit with three pouches of powder that you mix with water at home. The prep is split into two flavored doses:

• Dose 1 — Mango-flavored (1 pouch), taken the evening before your colonoscopy
• Dose 2 — Fruit punch-flavored (2 pouches mixed together), taken the morning of your colonoscopy

Plenvu works by drawing water into the colon, which triggers bowel movements that flush out waste. For a detailed explanation, see our guide on how Plenvu works.

What Is Plenvu Used For?

Plenvu is approved for one specific purpose: bowel cleansing before colonoscopy in adults.

Colonoscopies are used to screen for colon cancer, investigate digestive symptoms, and monitor conditions like inflammatory bowel disease. A clean colon is essential for the doctor to see polyps, inflammation, or other abnormalities clearly.

Plenvu is not used for general constipation, weight loss, or any other purpose. It's a one-time-use prep prescribed specifically for a scheduled colonoscopy procedure.

How Is Plenvu Taken?

Plenvu uses a two-dose (split-dose) regimen. Here's the typical schedule:

The Evening Before Your Colonoscopy (Dose 1)

1. Dissolve the Dose 1 pouch in 16 ounces of water
2. Drink the solution over 30 minutes (between 4–8 PM)
3. After finishing, drink an additional 16 ounces of clear liquids over the next 30 minutes

The Morning of Your Colonoscopy (Dose 2)

1. Mix both Dose 2 pouches together in 16 ounces of water
2. Drink the solution over 30 minutes (approximately 5 hours before your procedure)
3. After finishing, drink an additional 16 ounces of clear liquids

Important Tips

• You can refrigerate the mixed solution for better taste (use within 24 hours)
• Follow a clear liquid diet as instructed by your doctor
• Avoid alcohol, milk, red or purple liquids, and anything with pulp
• Take any other medications at least 1 hour before or 1 hour after each Plenvu dose to ensure they're absorbed properly

A same-day dosing option is also available for some patients — ask your doctor which schedule is right for you.

Who Should Not Take Plenvu?

Plenvu is not safe for everyone. You should not take Plenvu if you have:

• Bowel obstruction (intestinal blockage)
• Bowel perforation (a hole in the intestine)
• Gastric retention (delayed stomach emptying)
• Ileus (paralyzed bowel)
• Toxic megacolon (severely dilated colon)
• Allergy to any ingredient, including polyethylene glycol

Use with extra caution if you have kidney disease, heart conditions, seizure disorders, or are elderly. These conditions increase the risk of complications from electrolyte imbalances or dehydration. Read more about Plenvu side effects and drug interactions.

Plenvu has not been studied in patients under 18 years old. There is limited data on use during pregnancy or breastfeeding.

How Much Does Plenvu Cost?

The cash price for a Plenvu kit typically ranges from $150 to $210. There is no generic version available — a generic isn't expected until approximately 2033.

Insurance Coverage

Most commercial insurance plans and Medicare Part D cover Plenvu when it's prescribed for a medically necessary colonoscopy. Some plans may require prior authorization. It's often covered as part of the colonoscopy procedure's medical benefit.

Savings Programs

If you're paying out of pocket or facing a high copay, there are options:

• Plenvu Co-Pay Savings Program — Commercially insured patients may pay as little as $0
• Plenvu Medicare Part D Coupon Program — Eligible Medicare patients may pay as little as $70
• Bausch Health Patient Assistance Program — For uninsured or underinsured patients

For a full breakdown, see our guide on how to save money on Plenvu.

Finding It in Stock

Because Plenvu is a brand-name specialty product, it's not always in stock at every pharmacy. Use Medfinder to check pharmacy availability near you, and fill your prescription at least a week before your colonoscopy.

Final Thoughts

Plenvu is one of the more patient-friendly colonoscopy preps available in 2026. Its low volume, flavored doses, and split-dose schedule make it easier to complete than many older alternatives. If you're dreading the prep portion of your colonoscopy, Plenvu may be a good option to discuss with your doctor.

Ready to fill your prescription? Search Medfinder to find Plenvu in stock near you.