Related Experiment Video
Updated: Jul 5, 2026
07:05
Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
Published on: November 9, 2016
Severe symptomatic hyponatremia during sibutramine therapy: a case report
Pasquale Esposito1, Teresa Rampino, Marilena Gregorini
1Unit of Nephrology, Dialysis, and Transplantation, IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy. pasqualeesposito@hotmail.com
Summary
Sibutramine, used for obesity, can cause dangerous low sodium levels (hyponatremia) by affecting antidiuretic hormone. Careful monitoring of electrolytes is crucial during sibutramine treatment.
Area of Science:
- Pharmacology
- Endocrinology
- Nephrology
Background:
- Sibutramine is a serotonin reuptake inhibitor used for obesity management.
- Its known side effects, like hypertension and tachycardia, stem from adrenergic and serotoninergic actions.
- Understanding sibutramine's full side effect profile is critical for patient safety.
Observation:
- A case of life-threatening hyponatremia was observed in an obese woman undergoing sibutramine therapy.
- Hyponatremia, or low serum sodium, is a potentially severe electrolyte disturbance.
- This adverse event highlights a previously under-recognized complication of sibutramine.
Findings:
- Sibutramine's serotoninergic effects may stimulate the secretion of antidiuretic hormone (ADH).
- This can lead to the syndrome of inappropriate antidiuretic hormone secretion (SIADH).
- SIADH results in water retention and dilutional hyponatremia.
Implications:
- Clinicians should be vigilant for hyponatremia in patients taking sibutramine.
- Monitoring of water-electrolytic balance is recommended during sibutramine treatment.
- This finding broadens the understanding of sibutramine's complex physiological effects and risks.
Related Concept Videos
01:28Antihypertensive Drugs: Potassium-Sparing Diuretics
Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
01:21Hyperosmolar Hyperglycemic State
Hyperosmolar Hyperglycemic State, or HHS, is a serious and life-threatening complication of type 2 diabetes mellitus. It is characterized by three main features: severe hyperglycemia, profound dehydration, and elevated serum osmolality, all occurring without significant ketoacidosis.HHS typically develops in older adults or individuals with limited access to fluids. This may result from illness, cognitive impairment, or medications such as diuretics or corticosteroids. These factors reduce...
01:24Nephrotic Syndrome III : Nursing Management
Nursing management for nephrotic syndrome adapts as the disease progresses, with strategies evolving to address advancing symptoms and complications.Early-Stage Management In the early stages, nursing interventions for nephrotic syndrome resemble those used in managing acute glomerulonephritis, focusing on symptom monitoring, fluid balance, and managing mild to moderate edema.Vital Signs: Regularly monitor blood pressure, pulse, respiratory rate, and temperature to promptly identify...
01:29Disorder of Water Balance
Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
01:26Nephrotic Syndrome II : Assessment and Medical Management
IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document any history...
01:24Nephrotic Syndrome I : Introduction
Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of fluid...