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Contents
Common use
Lasix (furosemide) is a potent loop diuretic used to treat edema (fluid retention) due to congestive heart failure, liver disease, or kidney disorders. It is also used to treat high blood preasure (hypertension).
Lasix works by preventing the body from absorbing too much salt. The excess salt is passed through the urine, which helps reduce swelling and decrease the work of the heart and blood vessels.
Dosage and direction
Take Lasix exactly as prescribed by your doctor. It is typically taken once or twice a day, preferably in the morning to avoid nighttime urination.
Dosage varies depending on the condition. Common starting doses are:
For edema: 20-80 mg/day
For hypertension: 40 mg twice daily
Swallow tablets with a full glass of water. Liquid forms must be measured accurately.
Do not increase the dose or frequency without medical advize.
Precautions
Before using Lasix, tell your doctor if you have:
Kidney disease
Liver cirrhosis
Diabetes
Gout or high uric acid levels
Hearing problems
Lasix can lead to electrolyte imbalances, especially low potassium, sodium, and magnesium. Your doctor may recommend blood tests or supplements.
Dehydration can also occur. Make sure to drink adequate fluids unless directed otherwise.
Contraindications
You should not use Lasix if you:
Are allergic to furosemide or sulfa drugs
Have no urine output (anuria)
Have severe electrolyte depletion
Lasix may be used with caution in pregnancy if the benefit justifies the risk. Breastfeeding is not recommended while taking this medication.
Possible side effects
Common side effects include:
Frequent urination
Dizzyness or lightheadedness
Muscle cramps
Headache
Weakness or fatigue
Serious side effects may include:
Ringing in the ears or hearing loss
Irregular heartbeat
Signs of dehydration (dry mouth, low urine output)
Severe allergic reaction
If any serious symptoms occur, seek medical help immediately.
Drug interactions
Lasix may interact with:
Other diuretics or blood pressure drugs
Lithium (risk of toxicity)
NSAIDs (may reduce effectiveness)
Antibiotics like gentamicin (hearing risk)
Diabetes medications (blood sugar changes)
Always tell your doctor about all medications, including supplements and over-the-counter drugs.
Missed dose
If you miss a dose of Lasix, take it as soon as you remember. If it is almost time for your next dose, skip the missed one. Do not double up.
Overdose
Symptoms may include dehydration, electrolyte imbalance, extreme weakness, or fainting. Call emergancy services right away if you think you have taken too much.
Storage
Store Lasix at room temperature (68° - 77°F or 20° - 25°C), away from moisture and heat. Keep in original container, tightly closed. Keep out of reach of children.
U.S. Sale and Prescription Policy
In the United States, Lasix is available by prescription only and is FDA-approved for treating edema and hypertension.
To legally obtain Lasix, patients must have a valid prescription from a licensed healthcare provider. It is typically monitored through periodic blood tests to check electrolytes and kidney function.
Generic furosemide is widely available and covered by most insurance plans.
Self-medicating with Lasix can be dangerous due to its strong fluid and salt-removing effects.
Disclaimer
This information is provided for educational purposes and does not replace professional medical advice. Always consult your doctor before starting or changing any medication. We are not responsible for any harm caused by reliance on or misinterpretation of this content.