Furosemide is a loop diuretic (water pill) that is used to treat fluid retention (edema) in people with congestive heart failure, cirrhosis, or a kidney disorder such as nephrotic syndrome. This medication prevents your body from absorbing too much salt, and thus removes excess salt and water from the body through urine. It is also used to treat high blood pressure (hypertension). This medicine may also be used to treat other conditions as determined by your doctor.

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What does Furosemide treat?

Furosemide is used to treat the excess collection of fluid in the body or Edema which is the result of medical conditions such as heart failure, liver disease and kidney disease. It’s also used in the treatment of high blood pressure and thus helps prevent strokes, heart attacks and kidney problems. Your physician can use it to treat other problems at their discretion.

Possible Side Effects

Furosemide usually does not cause side effects. It does not have any major side effects and any side effects are seen, these are temporary. In rare cases, there might be major side effects and immediate medical attention must be sought.

Light-headedness, easy bruising, unusual bleeding, headaches, blurred vision, dizziness, painful or difficult urination, diarrhea, constipation, electrolyte imbalance and so on are possible side effects. It could cause dehydration, muscle cramps, pain, redness, swelling and so on too. This list however is not exhaustive. Always follow your physician’s instructions strictly.

Dosage Instructions

Follow the Furosemide dosage prescribed by your physician. The dosage could vary based on individual patient requirements. Taking high doses of furosemide could cause irreversible hearing loss. Always follow your physician’s instructions or go by the directions on the prescription drug label. This can be taken along with food or on an empty stomach.

Missed a dose?

Take it immediately once you remember. In case, this time is closer to the next dosage, skip it and get back to the prescribed schedule.


Don’t waste any time and seek immediate medical attention. Some of the key symptoms of overdosing on Furosemide could be fainting, weakness or a major decrease in urine. If you suspect an overdose, make sure you immediately seek medical attention.

Drug Interactions

Drug interactions must be considered before starting to take any kind of drug. Drug interactions might happen either when Furosemide is taken along with another drug or with particular foods. To prevent any kind of negative interaction, make sure you inform your doctor of any drugs you are taking including OTCs, health supplements like vitamins, minerals, herbal medicine and so on which may interfere or increase the effect of Furosemide.

Furosemide may interact with:

  • Digoxin
  • Gentamicin
  • Lithium
  • Prednisone

It may also interact with other blood pressure medications, steroids, and diet pills. This is not an exhaustive list though.

Appraise your doctor of any medical conditions that you are suffering from and your family history of medical ailments. Conditions such as kidney disease, urination problems, enlarged prostate, cirrhosis or other liver disease, diabetes, an electrolyte imbalance, lupus, high cholesterol, gout, or an allergy to sulfa drugs must be intimated to the doctor. It’s very important to let your doctor know in case you have recently had an MRI (magnetic resonance imaging) or any type of scan done. It’s important that you do not stop or start taking any medicine without the consent of your physician.

Where can I buy Furosemide over the counter in the USA?

Furosemide without prescription is not available as the medication is prescription only. It comes as tablets and as a liquid that one can easily swallow. It can also be given by injection, but this is usually only done in hospital.

Can I buy Furosemide without a prescription?

Furosemide this medication is available as a prescription only drug. Furosemide Without Prescription is not available anywhere.

What to ask your doctor before you start on Furosemide

  • Can I take Furosemide along with other drugs? 
  •  Are there certain foods, beverages and products to be avoided while on Furosemide?
  •  What is the dosage of Furosemide to be consumed? 
  •  How should I use Furosemide? 
  •  How will Furosemide work on my body?
  •  How can the drug interactions and side effects of Furosemide be minimized or completely avoided?


The health and medical information that we have provided are meant to supplement and not substitute the advice of your physician, pharmacists or other health care professionals. This does not suggest that usage of Furosemide is safe, appropriate or effective for you. Always ensure that you take this or any other drug only after consulting your physician.