Monitor your dog closely for any unusual changes. Lasix, while effective, can cause dehydration if your dog doesn’t drink enough water. Ensure fresh water is always available.
Gastrointestinal Upsets
Some dogs experience vomiting or diarrhea. If these symptoms are severe or persistent, contact your veterinarian immediately. Smaller, more frequent meals might help alleviate digestive discomfort.
Electrolyte Imbalances
Lasix can deplete potassium and other electrolytes. Your vet may recommend blood tests to monitor these levels and adjust medication or supplement accordingly. Severe imbalances can lead to weakness or heart problems.
Kidney Issues
While Lasix is often used for kidney problems, it can further stress already compromised kidneys in some cases. Your vet will carefully assess your dog’s kidney function before prescribing and monitor it during treatment.
Hypotension (Low Blood Pressure)
Lasix can lower blood pressure. This risk is higher in dogs with pre-existing cardiovascular conditions. Monitor your dog for lethargy, weakness, or collapse, and report these symptoms to your vet immediately.
Other Possible Side Effects
Less common side effects include increased thirst, increased urination (even though that’s the intended effect, excessive thirst might indicate an imbalance), and lethargy. Report any unusual changes in your dog’s behavior or health to your veterinarian.
