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Doctor insights on: Lasix

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Dr. Heidi Fowler
208 doctors shared insights

Lasix (Overview)

Lasix is a loop affecting water pill/diuretic which is a kind of water pill or diuretic (heart failure drug, cardiovascular drug).


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I have CHF what happens when Lasix (furosemide) no longer keeps the fluid off?

I have CHF what happens when Lasix (furosemide) no longer keeps the fluid off?

Several things: You may need to restrict your salt and fluid intake. You may need a higher dose of Lasix (furosemide) or change to another loop diuretic. You may need additional diuretics which are complementary to the lasix (furosemide). Sometimes lying down and resting after taking the Lasix (furosemide) helps mobilize the fluid. Please talk to your doctor about it. ...Read more

Dr. Heidi Fowler
208 doctors shared insights

Lasix (Overview)

Lasix is a loop affecting water pill/diuretic which is a kind of water pill or diuretic (heart failure drug, cardiovascular drug).


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At age 88, what are risk of being on Lasix (furosemide) 40mg. Precribe by my cardiologist

Risk: Lasix (furosemide) is a diuretic (water pill), it may increase urination, you may lose potassium, may cause dehydration, mild renal abnormality etc..., but your doctor will monitor you for these possible secondary effects. ...Read more

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I read that Lasix (furosemide) is not for long term, that you need to have blood test to see if kidneys are being effected, how long is it safe to use lasix (furosemide)?

I read that Lasix (furosemide) is not for long term, that you need to have blood test to see if kidneys are being effected, how long is it safe to use lasix (furosemide)?

Lasix (furosemide): Lasix (furosemide) is a safe drug as long as you are being monitored by your doctor while you are taking the medication. For some disease states, patients stay on the drug for many years. The drug reduces the body's free water volume and causes wasting of some electrolytes. Your physician will need to monitor your weight, blood pressure, physical exam, and labs (kidney function and electrolytes). ...Read more

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My grandfather is 91 and has chf. Doctors have him on Lasix (furosemide) to prevent fluid buildup around his heart/lungs. How much water can he drink safely?

My grandfather is 91 and has chf.  Doctors have him on Lasix (furosemide) to prevent fluid buildup around his heart/lungs.  How much water can he drink safely?

Ask his heart MD: At that age — and CHF — the amount of fluid that is safe to take in — can be very specific — and usually is balanced with the urine output — — check with his md — it will depend a lot on his ability of his heart to efficiently pump (ejection fraction) — done with echocardiogram, along with his kidney function (blood tests — especially creatinine, blood urea nitrogen-bun and now GFR — great?! ...Read more

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What is the toxic dose of furosemide for humans?

What is the toxic dose of furosemide for humans?

Varies: Too much Furosemide can cause overdiuresis with too much urination and dehydration and therefore low blood pressure -(orthostasis) as well as too low a potassium. Too much diuresis or dehydration of the kidneys can also lead to kidney failure. If one already has low kidney function then the dose is much lower than for a normal kidney. It depends on over a whole range of factors. ...Read more

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What all can be the side effects of lasix (furosemide)?

What all can be the side effects of lasix (furosemide)?

See below: Side effects include electrolyte disturbances like low sodium, low pottassium. It can also lead to dehydration if not carefully dosed. Rarely allergic reactions occur like any other medications. ...Read more

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In renogran report, right kidney, it reads- there is hold up of the activity in the collection system with complete wash out after lasix (furosemide). Meaning?

In renogran report, right kidney, it reads- there is hold up of the activity in the collection system with complete wash out after lasix (furosemide). Meaning?

No obstruction: The Lasix (furosemide) renal scan you had is good for differentiating a dilated collectong system from true obstruction. Sometimes urine will not clear immediately from the collecting system if there is some dilation, but this doesn't necesserily mean it is obstructed. Lasix (furosemide) is given to help flush out the radiotracer; if it washes out then there is no obstruction. ...Read more

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Had scope on knee mar 5. Feet still swelling bad. Can u tell me how long this will last. Taking 40mg of lasix (furosemide)?

See your doctor: 3 months after a knee scope, you should not have continued swelling. If this is new since the surgery, you could have a blood clot. If you have high blood pressure or prior issues with fluid retention, it could be relative inactivity. Start walking easy, or get on a stationary bike for 15 minutes a day. ...Read more

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Ptc other than diamox/lasix/topamax and vp/lp shunts what other treatment options are available? I have no quality of life and seek another opinion.

Ptc other than diamox/lasix/topamax and vp/lp shunts what other treatment options are available? I have no quality of life and seek another opinion.

Botox: Ask your doctor about trying Botox — while it will not relieve intracranial pressure but it may improve your headaches. The advantages of Botox are long duration of effect (3 months), ease of administration, and safety and the only disadvantage is its cost. ...Read more

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How do I come off of Lasix (furosemide)?

Lasix (furosemide): The first step is to discuss coming off Lasix (furosemide) with your doctor. The next step is follow the course you and the doc have agreed on. ...Read more

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What does it mean if Lasix (furosemide) doesn't work?

Several possibilites: If your kidney function is normal, it means you're not fluid overloaded. If you have swelling, it doesn't mean that Lasix (furosemide) will fix it — many forms of swelling are not due to volume overload. If you have kidney disease, it could mean that the dose is inadequate — that's why it should only be given under the supervision of a doctor. Rarely, Lasix (furosemide) is not properly absorbed. ...Read more

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What could happen if I take 240mg of Lasix (furosemide) all at once?

What could happen if I take 240mg of Lasix (furosemide) all at once?

Lasix (furosemide): This is a large dose which we would use only in unusual circumstance. The effect would depend on the patient's physiology. In an otherwise normal patient a large diuresis could be expected and possibly side effects such as ringing in the ears or hearing loss. In someone for whom the dose was appropriate we'd expect less diuresis and perhaps less in side effects. The answer is not simple ...Read more

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Do you have to taper lasix (furosemide)?

No: Loop diuretics including furosemide (=lasix) can be stopped without tapering it. ...Read more

Dr. Tony Ho Dr. Ho
1 doctor agreed:
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Does Lasix (furosemide) causes hypernatremia?

Dr. Tony Ho Dr. Ho
1 doctor agreed:

Usually, no: Lasix (furosemide) causes sodium wasting, so it classically causes a hyponatremia. ...Read more

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Will taking Lasix (furosemide) lead to dehydration?

Will taking Lasix (furosemide) lead to dehydration?

Possibly: Lasix (furosemide) is a drug meant to remove excess fluid and sodium from the body. If too much is taken, or intake drops substantially it can cause dehydration. ...Read more

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How does lasix (furosemide) for low urine output help?

How does lasix (furosemide) for low urine output help?

Depends on cause.: Lasix (furosemide)'s a medicine / poison that tricks the kidneys into losing urine while the drug is around. It can damage the kidneys if urine production is shut down as a defense mechanism. However, if the kidney is shutting down because it's not getting enough blood (because the heart is too overburdened with fluid to pump effectively) then Lasix (furosemide) will be helpful in unloading excess fluid & helping the hear ...Read more

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What all can be the side effects of lasix (furosemide)?

See below: Side effects include electrolyte disturbances like low sodium, low pottassium. It can also lead to dehydration if not carefully dosed. Rarely allergic reactions occur like any other medications. ...Read more

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Should nonpitting edema be treated with lasix (furosemide)?

Edema: We use furosemide(lasix)to treat excess fluid and increase the renal excretion of water/electrolyte. Sometimes nonpitting edema is still due to fluid overload and Lasix may be appropriate. The cause of the edema is the indicator for what treatment is needed. ...Read more

Dr. Jan Tillisch
402 doctors shared insights

Furosemide (Definition)

Furosemide is a potent diuretic which increases dramatically urine output in most patients. It is most frequently used in patients who are fluid overloaded such as in congestive heart failure. Potassium , sodium and magnesium can be lost in excess with the use of Furosemide and must be closely monitored. It is much stronger than other diuretics used for ...Read more