Lasix

Common Name: furosemide

How does Lasix work?

Furosemide belongs to the class of medications called diuretics. Diuretics like furosemide are used for the treatment of edema (fluid retention) that occurs with congestive heart failure and disorders of the liver, kidney, and lung. It is also used to control high blood pressure. Furosemide works by increasing the amount of urine produced and excreted and by removing excessive water (edema). Your doctor may choose to use a medication for conditions other than the ones listed in these drug information articles. If you're unsure why you are taking this medication, contact your doctor.

How should I use Lasix?

The recommended adult dose of furosemide ranges from 20 mg to 200 mg daily depending on circumstances and the condition being treated. For children, the dose of furosemide used is based on body weight. Furosemide is best absorbed if taken on an empty stomach. Results are seen usually within one hour and maximum results are seen within the first two hours. The diuretic effect may last six to eight hours. Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones above, do not change the way that you are taking the medication without consulting your doctor. It is very important to take this medication exactly as prescribed by your doctor. If you forget a dose of this medication, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and carry on with your regular schedule. Do not double-up on doses.

What form(s) does Lasix come in?

Lasix® is available in oral solution and tablet (20 mg and 40 mg) form. Oral solution: Each mL of clear, slightly yellowish solution, with an orange odour, contains furosemide 10 mg. Nonmedicinal ingredients: methylparaben, sodium hydroxide pellets, potassium sorbate, sorbitol solution, glycerin, polysorbate 80, natural orange wonf (orange flavour), butylated hydroxyanisol, butylated hydroxytoluene, and alcohol 95%. Tablets: 20 mg: Each white, round, flat-faced tablet, marked with "DLF" on one side and a logo on the other, contains furosemide 20 mg. Nonmedicinal ingredients: lactose monohydrate, corn starch, talc, colloidal silicon dioxide, magnesium stearate, and purified water. 40 mg: Each yellow, round, flat-faced, scored tablet, marked on one side with "LASIX ®" above a score line and "40" below it and marked on the other side with a logo, contains furosemide 40 mg. Nonmedicinal ingredients: lactose monohydrate, corn starch, FD&C Yellow No. 6, D&C Yellow No. 10, talc, colloidal silicon dioxide, magnesium stearate, and purified water.

What should I NOT take with Lasix?

This medication should not be taken by: anyone who is allergic to furosemide or any ingredients of the medication anyone with complete kidney shutdown anyone with hepatic coma or precoma anyone with extremely low blood levels of sodium or potassium anyone who is suffering from dehydration anyone with low blood pressure jaundiced (yellowing of skin and eye pigments) newborn infants infants suffering from certain diseases (e.g., Rh incompatibility, familial non-hemolytic jaundice)

Are there any other precautions or warnings for Lasix?

Dehydration: Furosemide is a potent diuretic (water pill) which, if given in excessive amounts, can lead to large amounts of urination resulting in dehydration. Diabetes: Furosemide may result in a reduction of blood sugar control for people with diabetes. Your doctor may need to adjust the dosage of your diabetes medication. Your blood glucose should be checked at regular intervals. Fluid and electrolyte balance: During long-term treatement with furosemide, a high-potassium diet is recommended. You may also require potassium supplements. Your doctor will monitor your potassium levels through occasional lab tests. Gout: Increases in the blood level of uric acid can occur and, in rare cases, gout may be brought on by taking furosemide. Sulfa drugs: Since furosemide is a sulfonamide derivative, it should be used with caution by anyone allergic to sulfa drugs. Pregnancy: The effect of taking furosemide during pregnancy is unknown. It should not be used by women who are or may become pregnant unless, in the opinion of their doctor, the benefits outweigh the possible risks. Breast-feeding: Furosemide passes into breast milk and may also partially reduce the amount of breast milk produced. Breast-feeding is not recommended for women taking furosemide.