Principal active substance: furosemide, which may be referenced as frusemide in some sources.

Common tablet strengths available in the United Kingdom include 40 mg and 100 mg; injectable forms and other strengths are also supplied for clinical use.

Conditions for which furosemide is commonly prescribed include fluid retention from heart failure, liver cirrhosis, kidney disorders such as nephrotic syndrome, and certain cases of high blood pressure.

Directly access the section on dosing steps and directions for practical information on taking this medicine.

Standard applications and how the drug works

Furosemide is a loop diuretic, often called a water tablet. It increases kidney excretion of salt and water, reducing excess fluid in tissues and lowering blood volume. This helps relieve swelling and can lower blood pressure.

For guidance on dose timing and changes, see dose administration guidance and practical tips.

Dosing data and practical directions

Only use furosemide exactly as prescribed. The prescriber will adjust the amount and timing to balance benefit and follow-on effects.

General practical points:

If you are uncertain about your regimen, contact a pharmacist or prescriber. For missed medication dose information see how to handle a dose you missed.

Safeguards with continuous tracking and monitoring of performance

Before and during treatment your clinician may advise blood tests and specific lifestyle directional guidance.

Review conditions that rule out this therapy before the therapy session begins.

Contramarkers pointing to to use in these settings and when to contact your clinician

Tell your prescriber if you have any of the following, or a history of them:

If you become pregnant, think you might be, or start breastfeeding, contact your clinician to discuss whether to continue the medicine.

Possible adverse events and warning signs

Although many people tolerate furosemide well, some effects can be serious. Seek immediate help for signs of a severe allergic reaction such as hives, breathing difficulty, or facial swelling.

Potential serious reactions requiring urgent medical review include:

More common, usually less severe secondary consequences may include dizziness, a dull headache, gastrointestinal upset, tingling sensations, or temporary visual blur. Reach out to a healthcare professional if your secondary consequences persist or worsen.

Drug the act of interaction effects with over the counter supplements

Tell your clinician and pharmacist about all prescription, over-the-counter medicines, and herbal or dietary supplements you use.

If you need more detail about a specific a reciprocal exchange, consult a pharmacist or prescriber before changing any medicines.

Remedies for a i skipped a dose today

If you are on a regular schedule and miss a dose, take it as soon as you remember unless it is nearly time for the next scheduled dose. Do not administer two doses at once to catch up. For as-needed use, follow the prescriber's instructions about when to take it.

What to do in case of an experiencing an overdose

If you suspect an intentional overdose seek urgent medical attention or call emergency services. Symptoms of intentional overdose can include ringing in the ears, extreme dizziness, fainting, confusion, weakness, and loss of appetite. If feasible, please bring the medicine packaging.

Handling guidance for on a computer, there are memory and storage, each with a different role. and use

See dosing and dosage guidelines and real world directions for advice on measuring liquid doses correctly.

Therapeutic other possibilities and price a high level overview in the UK

Alternative diuretics and related medicines may be considered depending on diagnosis and patient factors. Typical additional a different routes include the items below.

Approximate private prices in Great Britain (indicative, vary by supplier and pack size):

NHS prescriptions in England are normally charged per item unless you are exempt; this was 9.90 GBP in 2024 as a reference point. Scotland, Wales and Northern Ireland generally offer free prescriptions. Discuss costs and options with your prescriber or pharmacist.

If considering online purchases, ensure the pharmacy is legitimate and requires a valid prescription. See information on legal and regulatory matters matters for guidance on safe supply.