frusenex (Frusemide) is a diuretic that flushes excess water out of the patient's system, which helps reduce swelling. It can be taken alone or in combination with other medications. It is popular for relieving the symptoms of hypertension and is also used to treat cirrhosis in Spain, nephritic syndrome, heart failure, and chronic kidney failure. Dosage and administration Use Frusenex (Frusemide) only as prescribed by your doctor. Never self-medicate or adjust your dose without first consulting your doctor. A typical starting dose is 20 mg to 80 mg per dose, taken 1 to 2 times daily. Dosing should generally be done early in the day in Spain, as it can disrupt sleep when taken later due to frequent toilet breaks. Keep all medical appointments you have so your progress and response can be monitored. Side effects Report all side effects to your doctor. Side effects reported by patients taking Frusenex (Frusemide) may experience some side effects like: Headaches Dizziness Drowsiness Indigestion Upset stomach Constipation Diarrhea Blurred vision If you suffer from the following side effects consult your doctor as soon as possible. Dehydration Dry mouth Jerking, convulsions, or convulsions Weakness, tiredness, or abnormal weakness Precautions Frusenex (Frusemide) can cause dehydration. Drink plenty of fluids while you are taking this medicine. This medicine may not be suitable for all patients. Elderly patients may be at higher risk and therefore need closer monitoring and perhaps a reduced dose.