Furosemide LASIX

An FDA-approved water pill used for fluid retention and high blood pressure, also misused by athletes for rapid weight-cutting or to mask other drugs in tests. Its approved uses are well proven, but misusing it to shed water weight fast risks dangerous imbalances in essential blood minerals.

Also known as Lasix, Frusemide, Furanthril, Furosemid, Errolon, Seguril, Transit

Effects Lose fat

Routes Injectable Oral

Legal status Prescription drug

WADA Banned at all times

3D Molecular Structure of C₁₂H₁₁ClN₂O₅S

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Chemistry

Formula: C12H11ClN2O5S
Molar mass: 330.74
CAS: 54-31-9
PubChem CID: 3440
IUPAC name: 4-chloro-2-(furan-2-ylmethylamino)-5-sulfamoylbenzoic acid
InChIKey: ZZUFCTLCJUWOSV-UHFFFAOYSA-N

Reported dosing

Approved label

What has been reported in the literature and by users. This is a record of what is done, not a recommendation.

Typical dose 20-40 mg/day

Reported range 20-600 mg/day depending on indication and renal function

Route Oral or IV

Frequency Once or twice daily

Duration Chronic/ongoing (as prescribed) or short-term (off-label pre-contest water manipulation)

FDA-approved loop diuretic (Lasix); off-label bodybuilding use for pre-contest water manipulation is dangerous and has been linked to fatal electrolyte disturbances.

Where this comes from FDA prescribing information

These figures are recorded for reference and are not a recommendation. Dosing is a decision for you and a clinician.