POM-V Prescription Required Companion Animal

Dimazon 50 mg/ml Solution for Injection for Cattle, Horses, Cats and Dogs

Active ingredient: Furosemide

Form

Injection

Species

Cats Cattle Dogs Horses

Manufacturer

Intervet International B.V.

VMD MA No.

06376/4091

What it's used for

associated with cardiac insufficiency, renal dysfunction, trauma and parasitic disease. It is also recommended for the treatment of mammary oedema and limb...

Full indications, dosage and side effects ↓

View official SPC (PDF)

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Paying less for Furosemide

1

Ask your vet for a written prescription

They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.
2

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Prescription required

Your vet must provide a written prescription on request. You can then purchase from any licensed online retailer.

Clinical information

Dimazon 50 mg/ml Solution for Injection for Cattle, Horses, Cats and Dogs — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

associated with cardiac insufficiency, renal dysfunction, trauma and parasitic disease. It
is also recommended for the treatment of mammary oedema and limb oedemata.
The veterinary medicinal product gives rapid onset of diuretic action with increased
sodium and water excretion. It is even effective where glomerular filtration is impaired.

Cats and dogs: Intravenous or intramuscular use.
SpeciesDosage mg active/kg
bodyweight
ml of 50 mg/ml
solution
AdministrationHorse0.5 – 1.0 IV1 – 2 ml per 100 kg1 – 2 times/day
at intervals of
6 – 8 hours
Cattle0.5 – 1.0 IV1 – 2 ml per 100 kgAt intervals of
12 – 14 hours
Dog/cat2.5 – 5.0 IM/IV0.25 – 0.5 (per 5 kg
bodyweight)
First dose
5 mg/kg
reduced to
1 – 2 mg/kg for
maintenance at
6 – 8 hour
intervals.
In severe or refractory cases, the dose may be doubled on a single occasion in the
horse or cow.
The veterinary medicinal product may be administered observing aseptic precautions:


Onset and Duration of Action
SpeciesRouteTime of onsetDurationDogIV or IMAfter 10 – 15 minutes2 – 3 hours

Do not use in cases of acute glomerular nephritis, renal failure with anuria, electrolyte
deficiency disease or overdosage with digitalis.
Do not use concurrently with aminoglycoside antibiotic treatment.
The therapeutic effect may be impaired by increased intake of drinking water. So far as
the patient's condition allows, the amount of drinking water should be restricted.
Do not use in cases of hypersensitivity to the active substance or to any of the
excipients.

Cattle, horses, cats:
Very rare
(<1 animal / 10,000 animals
treated, including isolated
reports):
Haemoconcentration; Circulatory Impairment;
Hypokalaemia
, Hyponatraemia
;
In case of longer therapy.
Dogs:
Very rare
(<1 animal / 10,000 animals
treated, including isolated
reports):
Haemoconcentration; Circulatory Impairment;
Hypokalaemia
, Hyponatraemia
;
Vomiting
; Staggering
1
In case of longer therapy.
Following too rapid injection.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or its local representative or the national
competent authority via the national reporting system. See the package leaflet for
respective contact details.

None.

Special precautions for safe use in the target species:
Clinical experience with dogs indicates that improved results can frequently be achieved
by supplementary administration of corticosteroids.
In pulmonary oedema of cardiac origin, combined therapy with cardiac glycosides is
advisable. Only during prolonged treatment is it necessary to monitor potassium
balance. Potassium supplements may be necessary.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Care should be taken to avoid accidental self-injection. If irritation occurs, seek medical
advice and show the package leaflet or the label to the physician.
Following skin/eye contamination, wash/irrigate area with clean, running water
immediately.
Wash hands after use.
Special precautions for the protection of the environment:
Not applicable.

Potential interactions with other drugs include ototoxicity with aminoglycosides and
nephrotoxicity with cephalosporins.
Use in combination with sulphonamide treatment may lead to sulphonamide allergy.

Do not store above 25 °C.
Keep the container in the outer carton in order to protect from light.
If the product is stored for a prolonged period below 18 °C, crystalline precipitation may
occur. Do not use the product whilst these crystals are present. The crystals may be
redissolved by shaking the vial and then storing it for 24 hours at 30 °C - 40 °C. Once
the crystals are redissolved, the product may be used.
Discard unused material.

Cattle:
Meat and offal: 28 days.
Milk: 24 hours.
Horses:
Not to be used in horses intended for human consumption.
Treated horses may never be slaughtered for human consumption.
The horse must have been declared as not intended for human consumption under
national horse passport legislation.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.