Furosemide’s potassium-wasting effects can lead to hypokalemia. Monitor for these common signs: muscle weakness, especially in your legs; fatigue; constipation; palpitations; and abnormal heart rhythms. These symptoms can range from mild to severe.
Subtle Signs of Low Potassium
Pay close attention to seemingly minor changes. These may include increased thirst, frequent urination, and general muscle cramps. Don’t ignore these warning signs.
Severe Hypokalemia Symptoms
In more severe cases, hypokalemia can cause paralysis, difficulty breathing, and even life-threatening arrhythmias. Seek immediate medical attention if you experience these serious symptoms.


