Generic Name: Furosemide
Brand Names: Lasix
Furosemide is used to treat fluid retention (edema) and high blood pressure. It is available as Lasix and is commonly prescribed in the cardiovascular category.
Drug Class
Loop Diuretic (Sulfonamide Derivative)
Pregnancy
Category C — Animal studies have shown adverse fetal effects including increased fetal mortality. Furosemide crosses the placenta. Use during pregnancy only when potential benefits justify the potential risks; the diuresis can reduce placental perfusion and aggravate maternal volume contraction. Use is generally reserved for pulmonary edema, severe heart failure, or severe preeclampsia.
Available Forms
Oral tablet (20 mg, 40 mg, 80 mg), Oral solution (10 mg/mL, 40 mg/5 mL), IV/IM injection (10 mg/mL — 2 mL, 4 mL, 10 mL vials)
is prescribed to treat:
• Fluid retention (edema) and high blood pressure • Various related conditions in the cardiovascular category • Associated symptoms and complications
It is an important medication that helps manage these conditions effectively.
These are general dosage guidelines. Your doctor will determine the appropriate dose for your specific situation.
| Condition | Starting Dose | Maintenance Dose |
|---|---|---|
| Edema (heart failure, hepatic, renal) | 20–80 mg orally once daily | Titrate by 20–40 mg increments every 6–8 hours; max 600 mg/day in severe cases |
| Acute pulmonary edema (IV) | 40 mg IV over 1–2 minutes | If no response within 1 hour, increase to 80 mg IV; subsequent doses based on response |
| Hypertension (adults) | 40 mg twice daily | Adjust to response; usually combined with other antihypertensives |
| Pediatric edema | 1–2 mg/kg orally; max single dose 6 mg/kg | Repeat every 6–8 hours as needed |
| Renal impairment (severe) | Typical doses often ineffective; may need 80–200 mg IV | Continuous infusion (10–40 mg/hr) often preferred over high intermittent doses |
Common side effects may include:
• Nausea or stomach upset • Headache • Dizziness or lightheadedness • Fatigue or tiredness • Mild rash or itching
Serious side effects (seek immediate medical attention):
• Severe allergic reactions (rash, hives, swelling, difficulty breathing) • Unusual bleeding or bruising • Severe stomach pain • Signs of liver problems (yellowing of skin/eyes, dark urine) • Chest pain or irregular heartbeat • Severe dizziness or fainting • Signs of serious adverse effects
Furosemide is a high-ceiling diuretic that produces brisk natriuresis and diuresis. Most clinically important interactions involve electrolyte shifts, ototoxicity, and altered drug levels.
Furosemide (generic name: Furosemide) is a medication primarily used to treat fluid retention (edema) and high blood pressure. It is marketed under the brand name(s) Lasix and belongs to the Cardiovascular category of medications.
Furosemide works through several mechanisms to provide therapeutic benefits:
The medication is designed to target the specific pathways involved in fluid retention (edema) and high blood pressure, making it an effective treatment option.
Furosemide is commonly prescribed for:
In some cases, Furosemide may also be prescribed for:
Furosemide dosing varies based on the specific condition being treated and individual patient factors.
Typical Dosing:
Administration Tips:
Do not take Furosemide if you:
Inform your doctor about all medications you take, including:
Some medications may interact with Furosemide, affecting its efficacy or increasing side effect risk.
Pregnancy:
Breastfeeding:
While taking Furosemide, your doctor may monitor:
Regular follow-up appointments are important to ensure the medication is working properly and to make any necessary adjustments.
Most side effects are mild and improve with time. Here are strategies for common side effects:
To maximize the benefits of Furosemide:
Seek immediate medical attention if you experience:
Contact your doctor for non-emergency issues:
Store Furosemide at room temperature (68-77°F or 20-25°C) away from light, heat, and moisture. Keep in original container. Keep out of reach of children and pets. Do not use past expiration date.
When used appropriately, Furosemide provides several benefits:
Disclaimer: This information is for educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified healthcare provider with any questions about a medical condition or medication.
Consider discussing these topics at your next appointment:
This medication is commonly used to treat or manage the following conditions:
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Medical Disclaimer: This information is for educational purposes only and should not be considered medical advice. Always consult with your healthcare provider before starting, stopping, or changing any medication. Your doctor can provide personalized recommendations based on your specific health condition and medical history.
Other medications in the same category
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