Lasix Injection
Lasix Injection is a injection made by Sanofi that contains Furosemide 10 mg per ml. Furosemide is a strong diuretic (water pill): removes extra fluid in heart failure, kidney or liver disease and swelling.
| Ingredient (salt) | Amount |
|---|---|
| Furosemide | 10 mg per ml |
What it is used for
Removes extra fluid in heart failure, kidney or liver disease and swelling.
How it works
A strong loop diuretic (water pill) that removes excess fluid in heart failure, kidney and liver disease, and sometimes lowers blood pressure.
How to take it
Usually 20 to 80 mg in the morning (a second dose before 4 pm if twice daily). Weigh yourself daily if your doctor asks.
Common side effects
- Passing a lot of urine
- Thirst
- Dizziness
- Low potassium, sodium or magnesium
Get medical help straight away if
- Muscle cramps, weakness or confusion
- Hearing problems or ringing in ears
- Gout
- Very little urine
Be careful
Causes frequent urination; can lower potassium.
Other medicines and interactions
Raises lithium levels and kidney risk with NSAIDs, ACE inhibitors and ARBs. Low potassium increases digoxin toxicity.
Pregnancy and breastfeeding
Used in pregnancy only if clearly needed; can reduce milk supply.
Same ingredients, different strength or form
Common questions
What is Lasix Injection?
Lasix Injection is a injection by Sanofi containing Furosemide 10 mg per ml.
What is Lasix Injection used for?
Removes extra fluid in heart failure, kidney or liver disease and swelling.
How should I take Lasix Injection?
Usually 20 to 80 mg in the morning (a second dose before 4 pm if twice daily). Weigh yourself daily if your doctor asks. Always follow the dose your doctor or the pack gives.
What are the side effects of Lasix Injection?
Common side effects include: Passing a lot of urine, thirst, dizziness, low potassium, sodium or magnesium. Get medical help straight away for: Muscle cramps, weakness or confusion, hearing problems or ringing in ears, gout, very little urine.
Does Lasix Injection need a prescription?
Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.
Can I take Lasix Injection in pregnancy or while breastfeeding?
Used in pregnancy only if clearly needed; can reduce milk supply.
What are the substitutes for Lasix Injection?
We have no other brand with exactly the same composition and strength in our list yet. Ask your pharmacist for an equivalent.
Sources and further reading
- Furosemide: NHS · MedlinePlus
NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.
Composition checked against pack details from large Indian online pharmacies. Last reviewed 31 October 2026. Written by Satya Babu.
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