Lasix Overdose

If you take too much Lasix, overdose effects may include low electrolytes, dehydration, or low blood pressure. These effects may lead to symptoms such as drowsiness, a slow or irregular heartbeat, increased thirst, or loss of consciousness. Seek immediate medical attention if you believe you have overdosed on Lasix. Treatment options for a recent Lasix overdose may include administering certain medicines or "pumping the stomach."

 

Lasix Overdose: An Overview

Lasix® (furosemide) is a medication used for controlling high blood pressure and treating water retention (edema). Even though it happens rarely, a person can overdose on Lasix just like any other medication. The effects of a Lasix overdose will vary depending on a number of factors, including how much Lasix was taken and whether it was taken with any other medicines, alcohol, and/or drugs.
 
If you happen to overdose on Lasix, seek medical attention immediately.
 

Symptoms of a Lasix Overdose

The effects of a Lasix overdose may include:
 
  • Dehydration
  • Low blood pressure (hypotension)
  • Low electrolytes (especially low potassium, chloride, and sodium).
     
This may cause signs or symptoms that include:
 
  • Lightheadedness, dizziness, or fainting
  • A decrease in urine output
  • Drowsiness, headaches, or back pain
  • Slow or irregular heartbeat
  • Dry mouth
  • Increased thirst
  • Weakness
  • Tiredness
  • Restlessness
  • Seizures
  • Confusion
  • Muscle pain or cramps
  • Nausea or vomiting
  • Loss of consciousness.
     

Treatment for a Lasix Overdose

The treatment for a Lasix overdose will vary.
 If the Lasix overdose was recent, the healthcare provider may use certain medicines or place a tube into the stomach to "pump the stomach." Treatment may also involve supportive care. This type of care consists of treating the symptoms that occur as a result of the overdose. For example, supportive treatment options may include:
 
  • Fluids through an intravenous line (IV)
  • Medications to increase blood pressure
  • Electrolyte replacement
  • Other treatments based on the complications that occur
  • Close monitoring of the heart and lungs.
     
It is important that you seek medical attention immediately if you believe that you may have overdosed on Lasix.
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;