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Generic name: furosemide
Dosage form: injection, for subcutaneous use

Medically reviewed by Judith Stewart, BPharm. Last updated on Nov 1, 2022.

What is Furoscix?

Furoscix is a loop diuretic used for the treatment of fluid overload in adults with chronic heart failure.

Furoscix is administered by subcutaneous infusion at home by you or your caregiver with the use of the Furoscix On-Body Infusor.

What is Furoscix used to treat?

Furoscix is used for the treatment of congestion due to fluid overload in adult patients with New York Heart Association (NYHA) Class II and Class III chronic heart failure (CHF).

Heart failure occurs when the heart muscle doesn't pump blood as well as it should, causing fluid to build up in the lungs. 

NYHA Class II CHF means there are symptoms (shortness of breath and/or angina) with slight limitation during ordinary physical activity.

NYHA Class III CHF means there are symptoms with a marked limitation of physical activity during less than ordinary physical activity.

Important Information

Furoscix is not for use in emergency situations or in patients with acute pulmonary edema.

The Furoscix infusion will last about 5 hours. During this time, you should limit your activity so that your bending movements are limited. Wearing the Infusor while riding in a car or flying in an airplane is not recommended. 

You should notice an increase in urine production in about an hour after the infusion is started and may need to make frequent bathroom visits. Be sure you have access to a bathroom for up to 8 hours after starting the infusion. If you do not notice the need to go to the bathroom, call your healthcare provider. 

Do not use the On-Body Infusor within 12 inches of mobile phones, tablets, computers or wireless accessories (for example: TV remote control, Bluetooth computer keyboard or mouse).

Before you receive Furoscix

Before you receive Furoscix, tell your healthcare provider about all of your medical conditions, including if you have:

How should I use Furoscix?

Before Starting

Read the Instructions for Use leaflet that comes with your prescription before using the Furoscix On-Body Infusor for the first time.

Prepare for the Infusion

Wash your hands, check the expiration date, and remove supplies from carton.

Check the On-Body Infusor and prefilled cartridge. Do not touch the blue start button until the On-Body Infusor is on the skin and you are ready to begin the infusion.

Load the prefilled cartridge into the On-Body Infusor. 

Apply the On-Body Infusor

Select and prepare application site on the stomach on either side of the belly button (navel). The site should be a flat area below the rib cage and above the belt line.

Do not select a site where the skin is irritated or broken.
Do not apply lotions, oils or ointments to the adhesion area of the abdomen.
Do not select a site where belts, waistbands or other types of clothing may rub against, disturb, or dislodge the On-Body Infusor.
The site should be hairless or nearly hairless. If needed, remove excess hair by clipping or shaving the hair before applying the On-Body Infusor.
Wipe the skin where the On-Body Infusor will be applied with an alcohol wipe and allow area to dry. 

Pick up the On-Body Infusor. Peel away the adhesive liner by grasping the white tab and pulling it away from the blue tab/adhesive backing.
Do not touch the sticky (adhesive) part of the On-Body Infusor with your fingers or let it touch any objects or surfaces before the Infusor is placed on the skin.
Apply the On-Body Infusor to the chosen skin site while standing or sitting up straight.
Position the On-Body Infusor so that the cartridge window and the indicator light can be seen during the infusion.
Do not bend over when applying the On-Body Infusor.
Press the On-Body Infusor firmly onto the skin and hold it for several seconds, then rub your finger over the edges of the adhesive to get it to stick well.
Do not touch the blue start button until you are ready to start the infusion.
Do not remove and reapply On-Body Infusor. The On-Body Infusor adhesive might not work as well.

Start the Infusion

Firmly press and release the blue start button to begin the infusion.
The On-Body Infusor will stick a very small needle just under the skin and begin delivering the medicine. The indicator light will start blinking green and the On-Body Infusor "beeps", signifying that the infusion has begun.
Note: At the start of the infusion, you may also hear the On-Body Infusor motor running for several seconds.

Allow medicine to deliver for 5 hours.
Relax during the delivery period. The On-Body Infusor should remain on the skin until the delivery is complete.
Do not exercise or take part in activities that might result in the On-Body Infusor falling off. Take care not to bump the onbody Infusor while wearing it. It takes about 5 hours for the On-Body Infusor to deliver all of the medicine. During the infusion, the indicator light will continue to blink green periodically, signifying that the infusion is running.
Note: If the On-Body Infusor falls off or if the indicator light begins blinking red, call your healthcare provider right away (see On-Body Infusor Alarm section). Do not reapply or reuse the On-Body Infusor. Do not apply a new On-Body Infusor unless instructed to do so by your healthcare provider.

If you have to stop the infusion due to an emergency, do the following:

Remove and Dispose of the On-Body Infusor

When infusion is complete, remove the On-Body Infusor from the skin.
The infusion is complete and the On-Body Infusor is ready to be removed when:

Note: If indicator light begins blinking red instead of green and the On-Body Infusor “beeps”, call your healthcare provider.

Peel the On-Body Infusor off the skin by holding the skin down and pulling on the blue tab. When the On-Body Infusor is removed, the indicator light will turn off, the needle cover will extend over the needle to protect against accidental needle stick injuries, and the On-Body Infusor will turn off.

When the On-Nody Infusor is removed, the indicator light will turn off, the needle cover will extend over the needle to protect against accidental needle sticks, and the On-Body Infusor will turn off.

Note: You might have some discomfort after you remove the adhesive. This discomfort should quickly go away. However, some redness of the skin may remain.

Check the infusion site. If there is any bleeding use a cotton ball or apply a small adhesive bandage.

Throw away (dispose) of used On-Body Infusor and prefilled cartridge together into an FDA-cleared sharps container.
Do not attempt to remove the cartridge from the On-Body Infusor; it cannot be removed.
Do not throw away the used On-Body Infusor into household trash.

If you do not have a FDA-cleared sharps disposal container, you may use a household container that is:

When your sharps disposal container is almost full, you will need to follow your community guidelines for the right way to dispose of your sharps disposal container. There may be state or local laws about how you should throw away used Needles and syringes. For more information about safe sharps disposal, and for specific information about sharps disposal in the state that you live in, go to the FDA’s website at:

Do not dispose of your used sharps disposal container in your household trash unless your community guidelines permit this.

Do not recycle the On-Body Infusor or sharps disposal container or throw them into household trash.

Important: Always keep the sharps disposal container out of the reach of children.

For more information refer to:

Dosing information

Usual Adult Dose for Chronic Heart Failure

30 mg over the first hour, then 12.5 mg per hour for the subsequent 4 hours.

-  Furoscix is not for chronic use and should be replaced with oral diuretics as soon as practical.

Use: treatment of congestion due to fluid overload in adults with NYHA Class II/III chronic heart failure

Furoscix side effects

Furoscix may cause serious side effects including:

Common side effects include:

What other drugs will affect Furoscix?

Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.

Tell your doctor about all your other medicines, especially:

This list is not complete. Other drugs may interact with furosemide, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

General Information about Furoscix

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide.

You can ask your healthcare provider for information that is written for health professionals.

How should I store Furoscix?

Frequently asked questions

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.