The Best Way To Deal With a Dog on Lasix

Taking care of a dog on Lasix requires extra attention from a pet owner.


Lasix is a prescription medication used to treat fluid retention and edema and must be monitored closely to avoid side effects.


For a ‘Lasix killed my dog’ situation, it’s important to talk to your veterinarian and report any side effects that were noticed before their death.


It could be that their death was caused by something else, such as an underlying condition, but it’s important to have all the facts before making any assumptions.


Let’s look at the best way to deal with a dog on Lasix for long-term health and safety so that you don’t end up with the phrase, “Lasix killed my dog.”


What is Lasix?

Lasix is the brand name of the drug furosemide, a diuretic used to treat certain conditions in dogs, such as excessive fluid retention (edema) and congestive heart failure.


It works by increasing the amount of salt and water the kidneys remove from the blood, allowing the body to eliminate extra fluid from the system.


Which diseases can Lasix treat?

The diseases include:

  • Oedema: Lasix can reduce fluid accumulation in the tissues, which can help reduce pressure on tissues and organs due to excess fluid. 
  • Chronic Bronchitis: Lasix can be used to reduce inflammation in the airways, which in turn reduces mucus buildup and wheezing. 
  • Hyperkalemia: Lasix can help reduce high potassium levels in the blood by increasing the amount of potassium excreted in the urine. 
  • Hypercalcemia: Lasix can help reduce high calcium levels in the blood by increasing the amount of calcium excreted in the urine. 
  • Acute kidney failure: Lasix can reduce fluid buildup in the body, which can help reduce pressure on the kidneys and improve kidney function.


What are the side effects of Lasix in dogs?

Although Lasix is generally safe when used as directed, there are a few potential side effects.


The most common side effect associated with Lasix in dogs has increased urination.


Dogs taking this medication may need to be let out to urinate more frequently than usual, so it’s important to have a reliable method of keeping track of their potty schedule. 


Another possible side effect of Lasix is an increase in blood sugar levels.


This is especially important for dogs that are already diabetic since their blood sugar levels must be monitored closely.


If you notice signs of elevated blood glucose, contact your vet immediately for advice on how to manage it. 


Finally, long-term use of Lasix can contribute to potassium loss from the body.


This can lead to listlessness, weakness, and irregular heart rhythms.


To prevent potassium loss, your vet may suggest supplementing the diet with additional sources of potassium.


Who should not take Lasix?

Pregnant dogs should not take Lasix. Additionally, it is important to check for allergies to the medication before administering it to avoid the ‘Lasix killed my dog’ result.


How long does it take for Lasix to work on a dog?

Lasix typically takes an hour or two to become the most potent, and its effects can last up to 24 hours.


It is important to give your dog the appropriate dosage as prescribed by your veterinarian.


After administering the drug, be sure to provide plenty of water so that the fluid lost from the body due to the drug is replaced.


It is also a good idea to monitor your dog closely to ensure that their heart rate, breathing, and blood pressure remain healthy and that any other side effects are managed properly.


How to give Lasix?

Giving Lasix to a dog requires first determining the correct dosage per pound.


Start with a low dose (1-3 mg per pound) and increase as needed.


For most dogs, give the medication 1-4 times every day, on an empty stomach or after eating.


It is important to follow instructions carefully and time the dosage correctly to avoid any potential negative reaction.


Monitor your dog’s reaction and adjust the dose if necessary.


Always consult with a veterinarian before administering any medication to your pet.



The best way to deal with a dog on Lasix is to follow your vet’s directions and monitor your pet’s condition.


If any signs of distress appear, it is best to take your pet to the vet immediately.


It is also important to monitor your dog’s diet and levels of activity when they are on Lasix so that you can ensure they are receiving the best possible care.