Furosemide (Lasix)
$0.25
Lasix (Furosemide) is a strong water tablet that removes excess fluid in heart failure, kidney and liver conditions and helps lower blood pressure.
Drug Information
9 reviews for Furosemide (Lasix)
Lasix contains Furosemide.
Furosemide (also called frusemide) is a strong "water tablet" (diuretic). It quickly removes extra fluid from the body.
It is used for swelling and breathlessness caused by heart failure, and for fluid build-up from liver or kidney disease. It can also help lower blood pressure.
What is it used for?
- Fluid build-up (oedema) from heart failure, liver disease or kidney disease
- Breathlessness caused by fluid in the lungs
- High blood pressure
How does it work?
Furosemide acts on a part of the kidney called the loop of Henle. It makes the kidneys pass out a lot more salt and water, which reduces swelling and extra fluid.
This information is written in simple words to help you understand this product. It does not replace advice from your doctor or pharmacist.
Read these points before you start. If any of them apply to you, talk to your doctor or pharmacist first.
- High blood pressure usually has no symptoms, so keep taking your medicine even when you feel well. Stopping can make your blood pressure rise again.
- It can make you feel dizzy, especially when you stand up quickly or when you first start. Get up slowly from sitting or lying down.
- Alcohol can make dizziness worse and raise blood pressure over time. Keep it to small amounts.
- Tell your doctor if you have kidney or liver problems.
- Have your blood pressure checked regularly, as your doctor advises.
- Tell your doctor if you have gout, diabetes, kidney or liver problems.
- It can change the levels of salts such as potassium and sodium in your blood. Your doctor may do blood tests.
- Drink enough fluid, especially in hot weather or if you are sick or have diarrhoea, to avoid becoming dehydrated.
- It can lower potassium, sodium and magnesium levels. Your doctor may do blood tests or give you a potassium supplement.
- Very high doses can affect hearing, especially with some antibiotics (gentamicin).
- Do not take it if you are allergic to "sulfa" medicines.
- Tell your doctor or pharmacist about every other medicine, vitamin or herbal product you use.
- Keep this product out of the reach and sight of children.
Like all medicines, Lasix can cause side effects, but not everybody gets them.
Common side effects
- Needing to pass urine more often, especially in the first few hours after a dose
- Feeling dizzy or light-headed
- Feeling thirsty or having a dry mouth
These are usually mild and often get better as your body gets used to it. Tell your doctor if they bother you or do not go away.
Stop using it and get medical help straight away if you notice:
- Fainting, or feeling like you are going to faint
- Swelling of the face, lips, tongue or throat, or trouble breathing or swallowing
- Muscle cramps, weakness, confusion or an uneven heartbeat (possible salt or potassium problems)
- Very little urine, extreme thirst or feeling very dizzy (dehydration)
- Ringing in the ears or loss of hearing
This is not a complete list. If you notice anything unusual, ask your doctor or pharmacist.
- Take it in the morning, so that you are not up at night to pass urine.
- Swallow the tablet with a glass of water. You can take it with or without food.
- A common adult dose is 20 mg to 80 mg once a day. For heart failure, the dose may be higher and split into two doses (morning and early afternoon).
- You will pass more urine for about 6 hours after each dose. Plan outings with this in mind.
- Weigh yourself each morning if your doctor asks. A quick weight gain can mean fluid is building up again.
If you miss a dose: Take it as soon as you remember the same day. If it is nearly time for your next dose, skip the missed one. Never take two doses at once.
If you use too much: Contact your doctor, a poison control centre or your local emergency number straight away, even if you feel fine. Take the pack with you.
How to store it: Keep it in its original pack at room temperature (below 25°C / 77°F), away from heat, damp and direct sunlight. Do not use it after the expiry date.
- QDo I need to take Lasix for the rest of my life?
- A
Often, yes. High blood pressure is usually a long-term condition. Your doctor will review your treatment over time. Do not stop without talking to them.
- QCan I drink alcohol with Lasix?
- A
Small amounts are usually fine, but alcohol can make you dizzy and can raise your blood pressure. Try to keep within safe limits.
- QWhat else can help my blood pressure?
- A
Eating less salt, staying active, keeping a healthy weight, not smoking and cutting down on alcohol all help your medicine work better.
- QWhat is the best time to take Lasix?
- A
In the morning. If you need a second dose, take it no later than mid-afternoon, so you are not woken at night to pass urine.

Mikhail Jackson –
Here is my honest feedback on my order. Nothing was broken or leaking and the box was in good shape. Shipping was fast for me. The Furosemide I got looked just like the listing. I am satisfied and will come back for my next order.
Faisal Tan –
I had a question about my Furosemide order and the support team replied fast. Reasonably priced and the discount at checkout was a nice touch.
Nora Petrov –
I was a bit unsure at first, but ordering here worked out fine. Live chat was handy and the answers were useful. Plus, the order arrived without any hold-ups. Good place to order Furosemide online.
Hana Cruz –
Writing this after my latest order from the site. Someone from the team followed up to make sure all was fine.
Nabil Abbas –
The price for Furosemide was reasonable and there were no hidden charges. Communication was good throughout the order.
Aditi Mendoza –
I had a quick question and the support team replied fast. Also, ordering was straightforward from start to finish. Happy with the experience overall.
Charles Rivera –
The site is clean and easy to move around. Nothing was missing from my order. Really happy with this order.
Elena Adeyemi –
It was what I expected when I opened it. I compared a few sites and this one had the better price. Easy to order Furosemide here, and I will do it again.
Carlos Lopez –
First time ordering here and it was a pleasant surprise. The team kept me updated on the status of my Lasix order. For the price, I could not ask for more. Would not hesitate to use this site again.