Contact your doctor or seek immediate medical attention if you experience any of the following after taking Lasix:
Severe Dehydration Symptoms
Severe thirst, dizziness or lightheadedness, weakness, confusion, decreased urination, rapid heart rate, low blood pressure, or muscle cramps indicate significant fluid loss. These require prompt medical assessment.
Hearing Problems
Ringing in the ears (tinnitus), hearing loss, or muffled hearing are potential signs of ototoxicity, a rare but serious side effect. Report these symptoms immediately.
Signs of an Allergic Reaction
Hives, swelling of the face, lips, tongue, or throat, difficulty breathing, or wheezing are indicators of a severe allergic reaction, requiring immediate emergency care.
Electrolyte Imbalances
Muscle weakness, irregular heartbeat, seizures, or significant changes in your mood or mental state might suggest dangerous electrolyte imbalances. These need rapid attention.
Other Serious Side Effects
Report any unusual symptoms, such as Severe stomach pain, yellowing of the skin or eyes (jaundice), bloody or dark urine, or persistent vomiting. These may indicate liver problems or other serious complications requiring immediate medical help.
When to Contact Your Doctor
Contact your doctor if you experience any side effects that concern you, even if they’re not listed above. Your doctor can assess the severity of your symptoms and provide appropriate guidance.
