Blood Pressure Home > Lasix Risks

The prescription drug Lasix® (furosemide) is used for treating several conditions, including water retention and high blood pressure. Before you start treatment, tell your healthcare provider about all other existing medical conditions you have, as some conditions can be made worse by Lasix. Risks associated with the use of the medication should also be reviewed.
Some people may develop extremely low blood pressure while taking Lasix. This risk is higher in people who are on dialysis, who have congestive heart failure, who have diarrhea or vomiting, or who have excessive sweating. If you have any possible symptoms of low blood pressure (such as dizziness, lightheadedness, or fainting), contact your healthcare provider right away.
There are a number of other possible side effects with Lasix that you should report immediately to your healthcare provider. These include but are not limited to:
  • Yellowing of the skin or the whites of the eyes (jaundice)
  • Ringing in the ears (tinnitus) or hearing problems
  • High blood sugar (hyperglycemia)
  • Signs of dehydration or low electrolytes, such as dry mouth, thirst, or lethargy.
(Click Lasix Side Effects and Lasix Warnings and Precautions for more information about potential risks with Lasix, to learn about other possible side effects, and to find out what you should discuss with your healthcare provider before starting treatment.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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