Furosemideis a strong diuretic ('water pill') and may cause dehydration and electrolyte imbalance. It is important that you take it exactly as told by your doctor. If you experience any of the following symptoms, call your doctor immediately: decreased urination; dry mouth; thirst; nausea; vomiting; weakness; drowsiness; confusion; muscle pain or cramps; or rapid or pounding heartbeats.
Furosemide is used alone or in combination with other medications to treat high blood pressure. Furosemide is used to treat edema (fluid retention; excess fluid held in body tissues) caused by various medical problems, including heart, kidney, and liver disease. Furosemide is in a class of medications called diuretics ('water pills'). It works by causing the kidneys to get rid of unneeded water and salt from the body into the urine.
High blood pressure is a common condition and when not treated, can cause damage to the brain, heart, blood vessels, kidneys and other parts of the body. Damage to these organs may cause heart disease, a heart attack, heart failure, stroke, kidney failure, loss of vision, and other problems. In addition to taking medication, making lifestyle changes will also help to control your blood pressure. These changes include eating a diet that is low in fat and salt, maintaining a healthy weight, exercising at least 30 minutes most days, not smoking, and using alcohol in moderation.
Furosemide comes as a tablet and as a solution (liquid) to take by mouth. It usually is taken once or twice a day. When used to treat edema, furosemide may be taken daily or only on certain days of the week. When used to treat hypertension, take furosemide around the same time(s) every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take furosemide exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
If your doctor prescribes a low-salt or low-sodium diet, or to eat or drink increased amounts of potassium-rich foods (e.g., bananas, prunes, raisins, and orange juice) in your diet, follow these instructions carefully.
Take the missed dose as soon as you remember it. However, if it is almost time for your next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
Keep this medicine in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Dispose of unused furosemide solution after 90 days.
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( ) for more information if you do not have access to a take-back program.
In case of overdose, call the poison control helpline at
1-800-222-1222. Information is also available online at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Furosemide is a loop diuretic used to treat fluid retention (edema) in people with congestive heart failure, liver disease, or a kidney disorder such as nephrotic syndrome. Furosemide is also used to treat high blood pressure (hypertension).
Furosemide works by increasing the amount of urine the body makes, which helps reduce swelling and symptoms of fluid retention and helps lower high blood pressure. Furosemide tablets are sometimes called water pills as they increase how much you urinate.
Furosemide is also known as frusemide in some countries. Furosemide became an FDA-approved medicine on July 1, 1966, and is available as tablets (Lasix), oral liquid, injection, and intravenous solution.
Get emergency medical help if you have signs of an allergic reaction to furosemide (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).
Before using this medicine, tell your doctor if you have kidney disease, enlarged prostate, urination problems, cirrhosis or other liver disease, an electrolyte imbalance, high cholesterol, gout, lupus, diabetes, or an allergy to sulfa drugs.
Tell your doctor if you have recently had an MRI (magnetic resonance imaging) or any type of scan using a radioactive dye that is injected into your veins. Do not take more of this medication than is recommended.
Furosemide on-body infusor (Furoscix) can only be used for congestion due to fluid overload in adults with NYHA Class II/III chronic heart failure, and is not not indicated for emergency situations or in patients with acute pulmonary edema.
Furosemide infusion (Furoscix) lasts about 5 hours. Furoscix should not get wet. Do not bathe, shower, swim or exercise while wearing the infusor. Also, do not apply any products such as lotions or creams in the area where the infusor is placed. Furoscix is not for chronic use and should be replaced with oral diuretics as soon as practical.
It is not recommended to travel by car or airplane while using Furoscix. Also do not use the infusor within 12 inches of mobile phones, tablets, computers, or wireless accessories such as remote control, or bluetooth devices.
This medicine will make you urinate more often and you may get dehydrated easily. Follow your doctor's instructions about using potassium supplements or getting enough salt and potassium in your diet.
Oral: Initial dose: 20 to 80 mg orally once; may repeat with the same dose or increase by 20 or 40 mg no sooner than 6 to 8 hours after the previous dose until the desired diuretic effect has been obtained.
Maintenance dose: Administer the dose that provided the desired diuretic effect once or twice a day (e.g., at 8 am and 2 pm).
Comments:Edema may be most efficiently and safely mobilized by giving this drug on 2 to 4 consecutive days each week. When doses greater than 80 mg/day are given for prolonged periods of time, careful clinical observation and laboratory monitoring are particularly advisable.
Initial dose: 2 mg/kg orally once; if the diuretic response to the initial dose is not satisfactory, may increase by 1 or 2 mg/kg and administer no sooner than 6 to 8 hours after the previous dose.
Maintenance dose: Adjust to minimum effective dose.
Use: Treatment of edema associated with congestive heart failure, cirrhosis of the liver and renal disease, including the nephrotic syndrome, especially when an agent with greater diuretic potential is desired.
Furosemide is sometimes used only once, so you may not be on a dosing schedule. If you are using the medication regularly, use the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not use two doses at one time.
Sometimes it is not safe to use certain medicines at the same time. Some drugs can affect your blood levels of other drugs you use, which may increase side effects or make the medicines less effective
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.
If you're taking furosemide as a liquid, it will come with a plastic spoon or syringe to help you measure out the correct dose. If you do not have one, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not measure the right amount.
You do not need to take furosemide at the same time every day. You can occasionally take it at a different time if it's more convenient for you, for example if you need to go out for a few hours in the morning and you will not be near a toilet.
Try not to take furosemide too late in the day (after 4pm) or at night, otherwise you may have to wake up to go to the toilet. Your doctor or pharmacist will suggest the best times for you to take your medicine.
This will last for about 6 hours after taking furosemide. It's nothing to worry about, but if it's inconvenient for you, change the time you take furosemide to one that suits you better (provided it's no later than 4pm).
If furosemide makes you feel dizzy when you stand up, try getting up very slowly or stay sitting down until you feel better. If you begin to feel dizzy, lie down so that you do not faint, then sit until you feel better.
Take furosemide with or just after a meal or snack. Take small, regular sips of water or squash so you do not get dehydrated (ask your doctor how much fluid you can drink). Speak to a pharmacist if you have signs of dehydration, such as peeing less than usual or having dark, strong-smelling pee.
It is not known how much furosemide gets into breast milk but it\u2019s likely to be a small amount. It would not be expected to cause any side effects in your baby, but furosemide may reduce the amount of milk you produce.
If you\u2019re breastfeeding, or planning to breastfeed, talk to your doctor or pharmacist as other medicines might be better while breastfeeding. It is important that you take the medicine that works for you. If you need to take furosemide while you're breastfeeding, your doctor and midwife will monitor your baby's weight.
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