International Numbering System (INS) for Food Additives: 421
Food additives Europe numbers: E421
Mannitol is a sugar alcohol used as a medication to reduce increased intracranial pressure and as a diuretic to increase urine output. It is used to treat edema (fluid retention) caused by conditions such as heart failure, liver failure, and renal failure. It is also used to reduce the risk of kidney damage caused by contrast dyes used during certain medical procedures, such as X-rays, CT scans, and angiograms. Mannitol is given by injection or by mouth. Common side effects include nausea, stomach pain, and diarrhea.
Mannitol is a medication commonly used in various medical settings. Here's a breakdown of its properties and applications:
Type: Mannitol is an osmotic diuretic.
Function:
- Primarily acts as a diuretic, increasing urine production and helping the body get rid of excess fluid.
- This reduction in fluid volume can be beneficial in treating several conditions.
Medical uses:
- Reducing intracranial pressure (ICP): Mannitol helps draw fluid away from the brain, lowering pressure within the skull. This is crucial in cases of head injuries, strokes, and brain swelling (cerebral edema).
- Treating glaucoma: By reducing the fluid pressure in the eye, it can help manage high intraocular pressure associated with glaucoma.
- Promoting diuresis: Mannitol can increase urine output in situations like acute kidney failure where the body struggles to eliminate fluids effectively.
- Other applications: Mannitol may also be used in specific procedures like:
- Cardiac surgery: To maintain adequate urine output during bypass surgery.
- Liver transplantation: To help remove toxins from the body before or after the transplant.
How it works:
- Mannitol is a small molecule that acts as an osmotic agent.
- When introduced into the bloodstream, it draws water from surrounding tissues, including the brain and eyes, back into the circulation.
- This increased fluid volume in the bloodstream stimulates the kidneys to produce more urine, ultimately eliminating excess fluid from the body.
Important considerations:
- Mannitol is a prescription medication and should only be administered under the supervision of a healthcare professional.
- It has potential side effects: While generally well-tolerated, some common side effects include headache, dizziness, nausea, and electrolyte imbalances.
- Not suitable for everyone: Mannitol may not be appropriate for individuals with certain medical conditions like severe heart failure or pre-existing kidney problems.