Lasix

(Furosemide)

3.7/ 5 average rating with 371 reviewsforLasix
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Lowers blood pressure. Removes extra water from your body.

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Our bottom line

Lasix (Furosemide) is a very effective water pill and it'll certainly make you go to the bathroom more often.

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Quick facts about Lasix
  • Drug class: Cardiovascular
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (furosemide)

Upsides

  • A strong diuretic (water pill) that works well to get rid of extra fluids in your body through urination.
  • Lowers your blood pressure and your risk of heart attack and stroke.
  • Works better than thiazide diuretics (like Hydrochlorothiazide) at removing harmful levels of certain electrolytes, such as potassium.
  • Okay to take if you have kidney problems.
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What to expect from Lasix, on one page

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People’s experience with Lasix

371reviews so far. What do you think?

Downsides

  • Makes you urinate very frequently.
  • Can cause low levels of important electrolytes, such as potassium.
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What to expect from Lasix, on one page

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How it works

Lasix (Furosemide) is a loop diuretic (water pill). It works in the kidneys to make you urinate more, which removes extra water and certain electrolytes. This lowers blood pressure and swelling.

Quick facts about Lasix
  • Drug class: Cardiovascular
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (furosemide)
People’s experience with Lasix

371reviews so far. What do you think?

Prices and coupons

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What to expect when you take Lasix (Furosemide) for Swelling

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  • First few hoursHours
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  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
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  • Possible side effects
  • Dizziness
  • Low electrolytes
  • High blood sugar
  • Sun sensitivity
  • Kidney problems
  • Rash
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Side effect rates for Lasix (Furosemide)

Risks and Warnings for Lasix (Furosemide)

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    • Higher risk if:
    • Current electrolyte imbalance

    Too much Lasix (Furosemide) can cause excessive urine production, which leads to dehydration and low levels of sodium, calcium, potassium or magnesium. The electrolyte imbalance can have negative affects on your muscles or other important organs. Any existing fluid or electrolyte imbalances should be addressed before using Lasix (Furosemide). Any changes for the medicine should be made by a doctor.

    This is a black box warning. The FDA requires this warning when there is a significant risk of serious or life-threatening effects that anyone taking the drug should consider.

Means that some groups have a high risk of experiencing this side effect

Pharmacist Q&A

Lasix (Furosemide) questions for

Frequently Asked Questions

This medication treats edema (fluid retention) associated with congestive heart failure (CHF), hepatic (liver) cirrhosis, and renal (kidney) disease.

Who is this drug for?

This medication treats edema (fluid retention) associated with congestive heart failure (CHF), hepatic (liver) cirrhosis, and renal (kidney) disease.

Common concerns from people taking Lasix (Furosemide)

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Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Tip: Always talk with your doctor before you take any medication while pregnant.
FDA pregnancy category for Lasix
CWeigh risks vs. benefits
Kidneys and liver
  • Requires routine blood tests to check kidney function.