Lasix appears in breast milk and could affect a nursing infant. If this medication is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment is finished. Recommended dosage Return to top Your doctor will adjust the dosages of this medication, which is a strong diuretic, to meet your specific needs. It is available in both oral and injectable form. The injectable form is used only in emergency situations or in cases where patients cannot take oral medication.
Dosages shown here are for oral tablets or solution only.
If needed, the same dose can be repeated 6 to 8 hours later, or the dose may be increased. This dosage is then taken once or twice daily thereafter. Your doctor should monitor you carefully using laboratory tests. The maximum daily dose is 600 milligrams. The usual starting dose is 80 milligrams per day divided into 2 doses.