FUROSEMIDE (fyoor OH se mide) treats high blood pressure. It may also be used to reduce swelling related to heart, kidney, or liver disease. It helps your kidneys remove more fluid and salt from your blood through the urine. It belongs to a group of medications called diuretics.
What should I tell my care team before I take this medication?
They need to know if you have any of these conditions:
Abnormal blood electrolytes
Diarrhea or vomiting
Kidney disease, small amounts of urine, or difficulty passing urine
An unusual or allergic reaction to furosemide, sulfa medications, other medications, foods, dyes, or preservatives
Pregnant or trying to get pregnant
How should I use this medication?
Take this medication by mouth. Take it as directed on the prescription label at the same time every day. You can take it with or without food. If it upsets your stomach, take it with food. Keep taking it unless your care team tells you to stop.
Talk to your care team about the use of this medication in children. Special care may be needed.
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
What may interact with this medication?
Aspirin and aspirin-like medications
Medications for blood pressure
Medications that relax muscles for surgery
NSAIDs, medications for pain and inflammation like ibuprofen, naproxen, or indomethacin
Steroid medications like prednisone or cortisone
What side effects may I notice from receiving this medication?
Side effects that you should report to your care team as soon as possible:
Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
Dehydration—increased thirst, dry mouth, feeling faint or lightheaded, headache, dark yellow or brown urine
Hearing loss, ringing in ears
High blood sugar (hyperglycemia)—increased thirst or amount of urine, unusual weakness or fatigue, blurry vision
Low blood pressure—dizziness, feeling faint or lightheaded, blurry vision
Low potassium level—muscle pain or cramps, unusual weakness or fatigue, fast or irregular heartbeat, constipation
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Burning or tingling sensation in hands or feet
What should I watch for while using this medication?
Visit your care team for regular checks on your progress. Check your blood pressure regularly. Ask your care team what your blood pressure should be, and when you should contact him or her. If you are a diabetic, check your blood sugar as directed.
This medication may cause serious skin reactions. They can happen weeks to months after starting the medication. Contact your care team right away if you notice fevers or flu-like symptoms with a rash. The rash may be red or purple and then turn into blisters or peeling of the skin. Or, you might notice a red rash with swelling of the face, lips or lymph nodes in your neck or under your arms.
You may need to be on a special diet while taking this medication. Check with your care team. Also, ask how many glasses of fluid you need to drink a day. You must not get dehydrated.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medication affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.
This medication can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.
Where should I keep my medication?
Keep out of the reach of children and pets.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Protect from light and moisture. Keep the container tightly closed. Throw away any unused medication after the expiration date.
K Health articles are all written and reviewed by MDs, PhDs, NPs, or PharmDs and are for informational purposes only. This information does not constitute and should not be relied on for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment.
This information is educational only and should not be construed as specific instructions for individual patients nor as a substitute for medical advice, diagnosis or treatment. Talk to your health care provider or pharmacist about the information and instructions. K Health assumes no liability for any use or reliance on this information.