Medically reviewed by Jessica Swirble, PharmD
Last updated on April 21, 2025
Drug Information | Side Effects | Use & Dosage | Request an Online Prescription
Furosemide is a prescription medication used to treat high blood pressure and edema (fluid retention) associated with congestive heart failure, liver cirrhosis, and kidney disease.
Furosemide is prescribed to manage conditions such as:
By reducing the amount of excess fluid in the body, furosemide helps alleviate swelling and reduces the workload on the heart.
Furosemide is classified as a diuretic (also known as a water pill). These drugs help your kidneys release extra salt and water into the urine, lowering the overall fluid levels in the body. Not only does this help reduce the symptoms of edema, but it can also help lower blood pressure by decreasing the amount of fluid in the veins and arteries.
Furosemide is available in the following forms:
The dosage and frequency of use depend on the condition being treated, its severity, and how you respond to the medication.
Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or frequency of use without consulting your provider.
Furosemide is used to manage edema and hypertension. The effects can be noticeable within a few hours, but achieving the desired control over your condition may take a few days.
Continue using furosemide as prescribed, even if you start feeling better. Regular use according to your prescription is crucial for the management of your condition.
While furosemide is primarily used for treating edema and hypertension, healthcare providers may prescribe it off-label for other conditions such as hypercalcemia (high calcium levels in the blood).
Discuss any alternative uses of furosemide with your healthcare provider.
Furosemide is available in the following dosage forms:
Furosemide is a prescription medication. You will need a valid prescription from a licensed healthcare provider to obtain this medication.
The use of furosemide can lead to various side effects in some individuals.
Common mild side effects of furosemide use include:
More severe side effects include:
If you experience any severe or concerning side effects while taking furosemide, contact your healthcare provider right away.
Tell your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with furosemide. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with furosemide.
Tell your provider if you are taking these medications or supplements:
You should also mention medical conditions such as:
If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential risks and benefits of using furosemide with your healthcare provider.
Take furosemide exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment.
Furosemide can cause increased urination. Take it earlier in the day to avoid frequent nighttime urination.
Your provider may direct you to follow a specific diet and monitor your fluid intake while taking furosemide.
In case of a furosemide overdose, seek medical attention immediately. Symptoms of overdose may include severe dizziness, fainting, and severe dehydration. If you suspect an overdose, contact the poison control helpline at 1-800-222-1222 or call emergency services.
Furosemide is available in the following forms:
The typical starting dose of furosemide varies depending on individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.
For edema:
For hypertension:
The dosage may be adjusted based on the response and tolerance to the medication. Your healthcare provider will determine the most appropriate dose based on your medical history and your response to the medication.
Furosemide should be taken as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.
If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you want to talk to a provider right away, consider scheduling an online doctor appointment through a telehealth platform like Sesame.
If you miss a dose of furosemide, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue your regular dosing schedule. Do not double the dose to make up for a missed one.
Take furosemide around the same time every day to maintain an even level of medication in your body.
Continue taking furosemide as prescribed by your healthcare provider, even if you start feeling better. It's important to keep taking the medication as directed to manage your condition effectively.
Do not suddenly stop taking furosemide, as this can cause a return of your symptoms. Your healthcare provider will provide guidance if you need to stop taking it.
If you have any concerns or questions about your medication, discuss them with your healthcare provider for medical advice and recommendations.
Store furosemide according to the instructions provided by your healthcare provider or pharmacist. Keep it at room temperature, away from light and moisture. Ensure the container is tightly closed and out of reach of children.
Do not use expired medication or medications that appear damaged or discolored. If you have any questions about storage, consult your healthcare provider or pharmacist for guidance.