Furosemide 80 mg tablets are a loop diuretic (often sold as Lasix). They’re used to remove excess fluid from the body (edema) and can help lower high blood pressure in some situations.
What an 80 mg tablet means
- It’s a higher-strength tablet that may be used when a larger dose is needed, usually prescribed by a doctor.
Common uses
- Edema from heart failure, liver disease (cirrhosis), kidney disease, or nephrotic syndrome
- Sometimes used for certain cases of high blood pressure or acute fluid overload (under medical guidance)
General dosing (adult, typical ranges)
- For edema/fluid overload: common starting range is 20–40 mg once daily, up to 80 mg per day, and the dose may be increased gradually. Some patients may need higher total daily doses (up to 600 mg/day), split or given as needed.
- Your exact dose and schedule depend on your condition, kidney function, and response. Do not change the dose yourself.
Important administration notes
- Take in the morning to avoid waking at night to urinate.
- Swallow the tablet whole; you can take with or without food.
- If you miss a dose, take it as soon as you remember unless it’s near the time for your next dose. Do not double up.
Common side effects
- Increased urine output, thirst, dry mouth
- Dizziness or lightheadedness (especially when standing up)
- Electrolyte disturbances (low potassium, low magnesium, low sodium)
- Dehydration, headaches
- Possible upset stomach or increased urination at night
Important safety and interactions
- Tell your doctor if you have kidney disease, gout, diabetes, high or low potassium, or are pregnant/breastfeeding.
- It can lower potassium levels; your doctor may check electrolytes and assign potassium-rich foods or supplements if needed.
- NSAIDs (like ibuprofen) can reduce its effect; talk to your doctor before using NSAIDs regularly.
- It can interact with medicines like digoxin, lithium, certain blood pressure meds, and other diuretics.
- Avoid dehydration and sun exposure; discuss any ear-related symptoms (especially with IV use) with your clinician.
What would you like to know?
- Are you asking about how this dose works for a specific condition, about possible side effects you’re experiencing, or about interactions with other medicines you take?
If you can share your condition, other meds, kidney function, and any symptoms, I can tailor the information.