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Lasix (Generic)

Lasix (Furosemide) is in a class of drugs called loop diuretics (water pills). It decreases the amount of fluid in the body by increasing the amount of salt and water lost in the urine.

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Uses

Furosemide is used to reduce swelling in the body caused by congestive heart failure, liver disease, or kidney disease.

How to take

Furosemide may increase the amount of urine or cause you to urinate more often when you first start taking it. To keep this from disturbing your sleep, try to take your dose before 6 pm. Take each dose with a full glass of water. Never take more of this medication than is prescribed for you. If you take cholestyramine, colestipol, or sucralfate, ask your doctor or pharmacist how to take them with Furosemide.

Side effects

Check with your doctor if any of these most common side effects persist or become bothersome: Dizziness; lightheadedness; sensitivity to sunlight. Continue to take Furosemide and talk to your doctor if you experience dry mouth or increased thirst, headache, dizziness, or lightheadedness, constipation, increased sensitivity to sunlight, a rash, jaundice (yellow skin or eyes), ringing in the ears, nausea, easy bleeding or bruising, or numbness in the hands or feet. This drug may cause following serious side effects: an allergic reaction (difficulty breathing, closing of the throat, swelling of the lips, tongue, or face, or hives), muscle cramps or weakness, an irregular heartbeat, abdominal pain or diarrhea, low blood pressure (weakness, dizziness, fatigue), or decreased hearing. Symptoms of overdose may include dehydration, electrolyte imbalance (weakness; drowsiness; severe or persistent dizziness; muscle pain or cramps; unusual thirst; dry mouth; unusual tiredness; racing heartbeat; excessive urination; restlessness; irregular heart rhythms; severe or persistent nausea or vomiting); low blood pressure. If you suspect an overdose of Furosemide, seek medical attention immediately.

Precaution

Do not stop taking Furosemide suddenly, even if you feel better. Stopping suddenly could make your condition worse. Do NOT use Furosemide if: You are allergic to any ingredient in Furosemide You are unable to urinate You are taking ethacrynic acid Contact your doctor or health care provider right away if any of these apply to you. Furosemide may cause dizziness or blurred vision. These effects may be worse if you take it with alcohol or certain medicines. Use Furosemide with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it. Furosemide may cause dizziness, lightheadedness, or fainting; alcohol, hot weather, exercise, or fever may increase these effects. To prevent them, sit up or stand slowly, especially in the morning. Sit or lie down at the first sign of any of these effects. Diabetes patients - Furosemide may affect your blood sugar. Check blood sugar levels closely. Ask your doctor before you change the dose of your diabetes medicine. Tell your doctor or dentist that you take Furosemide before you receive any medical or dental care, emergency care, or surgery. Your doctor may also prescribe a potassium supplement while you take Furosemide. Check with your doctor before you use a salt substitute or other product that has potassium in it. Furosemide is a strong diuretic. Using too much of this drug can lead to serious water and mineral loss. Therefore, it is important that you be monitored by your doctor. Promptly notify your doctor if you become very thirsty, have a dry mouth, become confused, or develop muscle cramps/weakness. Patients who take medicine for high blood pressure often feel tired or run down for a few weeks after starting treatment. Be sure to take your medicine even if you may not feel "normal." Tell your doctor if you develop any new symptoms. If you have high blood pressure, do not use nonprescription products that contain stimulants. These products may include diet pills or cold medicines. Contact your doctor if you have any questions or concerns. Furosemide may cause you to become sunburned more easily. Avoid the sun, sunlamps, or tanning booths until you know how you react to Furosemide. Use a sunscreen or wear protective clothing if you must be outside for more than a short time. Lab tests, including blood pressure and complete blood counts, may be performed while you use Furosemide. These tests may be used to monitor your condition or check for side effects. Tell you doctor if you have an allergy to sulfa medicines such as sulfa-based antibiotics, kidney disease, liver disease, diabetes mellitus, gout, or systemic lupus erythematosus. Furosemide should not be used without first talking to your doctor if you are pregnant or are planning a pregnancy. As it might passes into breast milk and may affect a nursing infant. Ask your doctor before breast-feeding a baby. Use alcohol cautiously. Alcohol may increase the side effects of Furosemide.

Drug interactions

Tell your doctor of all nonprescription and prescription medication you are using, especially: lithium (Lithobid, Eskalith, others), probenecid (Benemid), a nonsteroidal anti-inflammatory drug (NSAID) such as ibuprofen (Motrin, Advil, Nuprin), naproxen (Naprosyn, Anaprox, Aleve), ketoprofen (Orudis, Orudis KT, Oruvail), indomethacin (Indocin), diclofenac (Cataflam, Voltaren), etodolac (Lodine), nabumetone (Relafen), oxaprozin (Daypro), piroxicam (Feldene), sulindac (Clinoril), tolmetin (Tolectin), fenoprofen (Nalfon), ketorolac (Toradol), or flurbiprofen (Ansaid), or a diabetes medication such as glipizide (Glucotrol), glyburide (Micronase, Glynase, Diabeta), chlorpropamide (Diabinese), tolazamide (Tolinase), tolbutamide (Orinase), and others. Drugs other than those listed here may also interact with Furosemide.

Missed dose

If you miss an Furosemide dosage, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.

Storage

Store Furosemide at room temperature, between 68 and 77 degrees F (20 and 25 degrees C). Store away from heat and moisture in a tight, light-resistant container. Exposure to light may cause a slight discoloration. Do not take discolored tablets. Do not store in the bathroom. Keep Furosemide out of the reach of children and away from pets.