Mannitol Side Effects

Some side effects of mannitol may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For the Consumer

Applies to mannitol: intravenous solution

Get emergency medical help if you have any of these signs of an allergic reaction while taking mannitol: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Tell your caregivers at once if you have any of the following symptoms. Some of these may be caused by your kidney condition and are not side effects of mannitol:

  • dry mouth, increased thirst, blurred vision, or seizure (convulsions);

  • swelling, pain, or skin changes where the medicine was injected;

  • chest pain, fast heart rate;

  • feeling like you might pass out;

  • feeling short of breath, even with mild exertion;

  • swelling, rapid weight gain; or

  • if you stop urinating.

Less serious side effects of mannitol may include:

  • nausea, vomiting;

  • runny nose;

  • dizziness;

  • chills; or

  • mild skin rash.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

For Healthcare Professionals

Applies to mannitol: compounding powder, inhalation kit, intravenous solution, irrigation solution

Cardiovascular

Cardiovascular side effects have included hypotension and tachycardia. Venous thrombosis or phlebitis extending from the injection site and hypervolemia have occurred rarely and are generally associated with the solution or technique used in administration.

Respiratory

Respiratory side effects have included pulmonary congestion and rhinitis. Respiratory side effects associated with mannitol inhalation have included cough, gagging, wheeze, and decreased forced expiratory volume.

Metabolic

Metabolic side effects have included fluid and electrolyte imbalance, acidosis, and electrolyte loss.

Nervous system

Nervous system side effects have included headache, convulsions, and dizziness.

Hematologic

Hematologic side effects have included thrombophlebitis.

Other

Eight cases of mannitol IV overdose in patients with preexisting renal failure were reviewed. Symptoms presented in the reviewed cases were CNS involvement out of proportion to uremia, severe hyponatremia, large osmolality gap, and fluid overload. Six patients were treated with hemodialysis, one patient with peritoneal dialysis, and one patient died before initiation of treatment. All patients received large doses over 1 to 3 days with a mean dose of 310 +/- 182.8 g. CNS involvement consisted of CNS depression, confusion, lethargy, stupor, and coma. Two patients recovered cerebral function and continued on lifetime dialysis, 3 patients recovered renal and cerebral function, and 1 patient recovered renal function but had severe cerebral dysfunction.

Other side effects have included dryness of mouth, thirst, edema, arm pain, chills, dehydration, fever, mannitol intoxication, and angina-like pain.

Renal

Renal side effects have included acute renal failure.

Local

Local side effects have included extravasation. This effect is generally attributed to the solution or technique used in administration.

Dermatologic

Dermatologic side effects have included urticaria and skin necrosis.

Ocular

Ocular side effects have included blurred vision.

Immunologic

Immunologic side effects have included infection at the injection site and febrile response. These effects are usually attributed to solution or technique used in administration.

Gastrointestinal

Gastrointestinal side effects have included nausea and vomiting.

Genitourinary

Genitourinary side effects have included marked diuresis and urinary retention.

Psychiatric

A 75-year-old woman with severe major depression experienced a manic episode 30 minutes after initiation of a 20% mannitol intravenous infusion for the treatment of acute angle closure glaucoma. The patient had been started on nortriptyline 50 mg per day for the treatment of depression ten days earlier. She received oral acetazolamide, topical pilocarpine, topical timolol, and topical dexamethasone concomitantly for the treatment of glaucoma. The mania resolved within approximately 1 hour following discontinuation of the mannitol infusion, and the patient returned to a severe depressive state. An extensive lab evaluation, toxicology screening, and medical examination failed to show additional secondary causes for mania in this patient.

Psychiatric side effects have rarely included mania (1 case report).

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date, and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This information does not endorse drugs, diagnose patients, or recommend therapy. This drug information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug of drug combination is safe, effective, or appropriate for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of information provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse, or pharmacist.

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