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40MG100CAPS
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Lasic – Furosemid
40MG100CAPS
Furosemide, a loop diuretic for water removal and pre-contest dryness.
£65.50 Save 9%
£59.90
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Frequently Asked Questions
What is Lasic and what does furosemide actually do?
Lasic is Syncom Labs' oral furosemide, dosed at 40mg per capsule. Furosemide is a loop diuretic, meaning it acts on the kidneys to force rapid excretion of water and electrolytes. In bodybuilding it is used purely to pull subcutaneous water out fast for a harder, drier look, it has no muscle-building or fat-burning effect.
How is furosemide typically used before a show?
As a guide and not medical advice, furosemide is commonly used only in the final hours before stepping on stage, at a single low dose rather than any ongoing protocol. This is not a beginner compound and there is no safe starter dose, competitors who use it usually do so under close guidance because the margin between a dry look and dangerous dehydration is small.
What are the risks and side effects of furosemide?
Furosemide can cause severe dehydration, dangerous drops in potassium, sodium and magnesium, dizziness, muscle cramps and, in serious cases, kidney strain or irregular heartbeat. Baseline kidney function and electrolytes should be checked beforehand, with blood pressure and bloods monitored closely around use. Anyone with kidney, heart or blood pressure issues should not touch this compound without medical supervision.
Is furosemide the same as a potassium-sparing diuretic like spironolactone?
No. Furosemide is a loop diuretic and works much faster and more aggressively, stripping water and electrolytes in a short window, which is why it is reserved for peak week rather than everyday water management. Potassium-sparing diuretics such as spironolactone are milder and carry a lower risk of dangerous potassium loss, though they still need medical oversight.
Does Lasic need to be run with a PCT or other compounds?
No, furosemide is not a hormonal compound so it does not require PCT and has no listed must-stack items. It is used as a standalone diuretic for a short, defined period around competition, not as part of a cycle.
Is this genuine Syncom Labs stock and how fast does it ship?
Every box of Lasic we sell is authentic Syncom Labs product with a verification check-code so you can confirm it against the manufacturer. Orders dispatch from the UK in plain, discreet packaging via Royal Mail Tracked 24, with same-day dispatch on orders placed before midday on a working day and most UK deliveries landing within 1 to 2 working days.