furosemide (generic name)
Lasix (brand name)
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What is this medicine?FUROSEMIDE (fyoor OH se mide) is a diuretic. It helps you make more urine and to lose salt and excess water from your body. This medicine can also be used to treat high blood pressure.
What should I tell my health care provider before I take this medicine?They need to know if you have any of these conditions:
- abnormal blood electrolytes
- diarrhea or vomiting
- heart disease
- kidney disease, small amounts of urine, or difficulty passing urine
- liver disease
- an unusual or allergic reaction to furosemide, sulfa drugs, other medicines, foods, dyes, or preservatives
- pregnant or trying to get pregnant
How should I use this medicine?Take this medicine by mouth. Follow the directions on the prescription label. You may take this medicine with or without food. If it upsets your stomach, take it with food or milk. Do not take your medicine more often than directed. Remember that you will need to pass more urine after taking this medicine. Do not take this medicine at a time of day that will cause you problems. Do not take at bedtime.
Use a specially marked dropper or spoon to measure your medicine. Ask your pharmacist if you do not have one.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as newborns, precautions do apply.
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 medicine?
- aspirin and aspirin-like medicines
- certain antibiotics
- chloral hydrate
- medicines for blood pressure
- medicines that relax muscles for surgery
- NSAIDs, medicines for pain and inflammation like ibuprofen, naproxen, or indomethacin
- steroid medicines like prednisone or cortisone
What should I watch for while using this medicine?Visit your doctor or health care professional for regular checks on your progress. Check your blood pressure regularly. Ask your doctor or health care professional 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.
You may need to be on a special diet while taking this medicine. Check with your doctor. 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 drug 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 medicine 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.