Mannitol/Sorbitol Is a Sterile Irrigation Solution Used During Transurethral and Hysteroscopic Surgical Procedures

If your doctor has mentioned Mannitol/Sorbitol in connection with an upcoming surgery, you might be wondering what it is and why it matters. This guide covers everything you need to know — from what it does to how much it costs — in plain, easy-to-understand language.

What Is Mannitol/Sorbitol?

Mannitol/Sorbitol (also called Sorbitol-Mannitol Irrigation) is a sterile, nonelectrolytic irrigating solution used during certain minimally invasive surgeries. Each 100 mL contains:

• Sorbitol — 2.70 grams
• Mannitol — 0.54 grams
• Water for injection — as the base

Both Sorbitol and Mannitol are sugar alcohols (hexitols). Together, they create a solution with an osmolality of 178 mOsmol/L — which is important for minimizing certain surgical complications.

Key Facts at a Glance

• Brand name: Sorbitol-Mannitol Irrigation
• Generic available: Yes — this is the generic product
• Drug class: Nonelectrolytic urologic irrigating solution
• Manufacturer: ICU Medical (Otsuka ICU Medical LLC)
• Controlled substance: No
• DEA schedule: Not scheduled
• How supplied: 3,000 mL flexible plastic bags or semi-rigid containers

What Is Mannitol/Sorbitol Used For?

Mannitol/Sorbitol irrigation is FDA-approved for use as an irrigating fluid during:

• Transurethral resection of the prostate (TURP) — A common procedure for treating benign prostatic hyperplasia (BPH), where enlarged prostate tissue is removed through the urethra.
• Other transurethral surgical procedures — Including removal of bladder tumors or other urologic conditions treated through the urethra.
• Hysteroscopic surgical procedures — Procedures performed through the cervix to treat conditions inside the uterus, such as fibroids, polyps, or abnormal bleeding.

The solution is also used off-label for hysteroscopic endometrial ablation and other endoscopic procedures requiring a nonelectrolytic irrigant.

During these procedures, the surgeon needs a clear view of the surgical area. Mannitol/Sorbitol is continuously flushed through the area to wash away blood and tissue, keeping the field visible. It must be nonelectrolytic (free of ions like sodium and chloride) because electrolytes would interfere with monopolar electrosurgical instruments used in these procedures.

How Is Mannitol/Sorbitol Used?

This is an important distinction: Mannitol/Sorbitol is NOT taken at home. It is:

• Administered only in a hospital or ambulatory surgical center
• Used during a surgical procedure by the surgeon and surgical team
• Delivered through irrigation tubing connected to a resectoscope or hysteroscope
• A single-use product — any unused portion is discarded after the procedure

The volume used varies by procedure. A typical TURP may require 10 to 30 liters (approximately 3 to 10 bags) of irrigation solution. Your surgeon controls the flow rate and monitors how much fluid is absorbed during the procedure.

Important: Mannitol/Sorbitol is for irrigation only. It must never be injected through standard IV routes.

Who Should Not Receive Mannitol/Sorbitol?

Mannitol/Sorbitol irrigation should not be used in patients with:

• Anuria — If you are not producing urine, your body cannot eliminate the absorbed Mannitol and Sorbitol, creating a dangerous buildup of fluid.

It should be used with caution in patients who have:

• Heart disease or congestive heart failure — Fluid absorption during surgery can strain the heart.
• Kidney disease — Impaired kidney function slows elimination of absorbed fluid and solutes.
• Diabetes mellitus — Sorbitol is metabolized and can raise blood sugar levels.
• Pregnancy — Classified as Pregnancy Category C; should only be used if clearly needed.

Always tell your surgeon about all your medical conditions before any procedure. For more about potential risks, see our guide on Mannitol/Sorbitol side effects.

How Much Does Mannitol/Sorbitol Cost?

Here's some reassuring news about cost:

• Wholesale price: Approximately $61 for 12,000 mL (four 3,000 mL bags), or about $15-20 per bag.
• Patient cost: You typically do not pay separately for Mannitol/Sorbitol. The cost is included in your hospital or surgical facility bill.
• Insurance coverage: Covered as part of the surgical procedure under Medicare Part A (inpatient) or Part B (outpatient surgery). Private insurance covers it as part of the facility fee. No prior authorization is typically required.

For more details on managing costs, visit our guide on saving money on Mannitol/Sorbitol.

Current Shortage Status (2026)

Mannitol/Sorbitol has been affected by an ongoing shortage. ICU Medical, the sole U.S. manufacturer of the combination product, has placed it on allocation. The shortage is connected to broader IV fluid supply disruptions triggered by Hurricane Helene's damage to Baxter's manufacturing facility in September 2024.

If your procedure is affected by the shortage, your surgeon may use an alternative irrigation solution. For the latest updates, see our shortage update for patients.

Final Thoughts

Mannitol/Sorbitol is a specialized surgical product — not something you'll pick up at a pharmacy or take at home. It plays an important role in keeping surgeons able to see clearly during transurethral and hysteroscopic procedures. Understanding what it is and how it's used can help you feel more prepared for your upcoming surgery.

Have questions about your procedure? Talk to your surgeon or visit Medfinder for more resources on how Mannitol/Sorbitol works, drug interactions, and finding the right doctor.