Furosemide
Lasix is the single furosemide product in this catalogue, listed in 40 mg and 100 mg tablets. It is a loop diuretic that makes the kidneys expel excess salt and water, easing Oedema and lowering blood pressure in Hypertension.
Key points
- Dehydration and electrolyte imbalance are the main risks with furosemide; sudden hearing changes are a serious warning that needs urgent attention.
- Furosemide appears combined with the potassium-sparing diuretic amiloride (sold as Frumil), which offsets some of the salt losses.
How does Furosemide work?
Furosemide acts on a specific part of the kidney called the loop of Henle, where it blocks the reabsorption of sodium and chloride. The result is a strong diuretic effect: the kidneys pass more salt and water into the urine, reducing the fluid volume that builds up in tissues and blood vessels. Because less fluid circulates, blood pressure falls and swelling eases. Furosemide sits in the Heart & Blood Pressure category for this reason.
Further reading
What is furosemide used for?
Furosemide is used for hypertension and oedema. It is a loop diuretic that makes the kidneys expel excess salt and water, easing oedema and lowering blood pressure.
How long does furosemide take to start working?
Furosemide starts working in 30 to 60 minutes, and its effect lasts 6 to 8 hours.
What are the side effects of furosemide?
Common side effects include dizziness, headache and dry mouth. Dehydration and electrolyte imbalance are the main risks, and sudden hearing changes need urgent attention. Speak to your doctor or pharmacist if you are concerned.
Can furosemide be taken with other medicines?
Furosemide interacts with lithium, digoxin and aminoglycosides. It can also be combined with the potassium-sparing diuretic amiloride, which offsets some of the salt losses. Ask your doctor or pharmacist about other medicines you take.
Who should not take furosemide?
Furosemide is not suitable for people with anuria, severe hepatic coma or electrolyte depletion. Speak to your doctor or pharmacist if you are unsure.
In which products can I find furosemide?
On Direct Meds, furosemide comes as Lasix. Compare their forms, strengths and packs.
How much does furosemide cost in South Africa?
Compare the rand prices for each product, strength and pack above. Prices are converted from US dollars. Larger packs usually cost less per tablet.
Payment and prices →Is furosemide available over the counter in South Africa?
Yes, online. Direct Meds does not ask for a prescription to order furosemide. We are a broker, not a dispensing pharmacy. We arrange orders and delivery with our affiliated supplier on your behalf.
Ordering without a prescription →Where can I buy furosemide in South Africa?
On Direct Meds: choose the product, strength and pack, then check out. Our affiliated supplier delivers across South Africa. Estimated delivery is 7 days with Express Delivery, which includes online tracking, or up to 3 weeks with Regular Delivery.
How ordering works →