Lasix Dosage: Warnings and Side Effects

December 9, 2022 | by DoctorSolve

Is Lasix a Diuretic?

Lasix is a diuretic (water pill). Diuretics are normally used in the treatment of edema, and fluid retention, which occur with congestive heart failure and disorders of the liver, kidney, and lungs. It is also used to control high blood pressure. This medication, which is available to purchase at our online Canadian pharmacy, works by increasing the amount of urine produced and excreted and by removing excessive water (edema). Lasix dosage for water retention should be discussed with the doctor prior to using it. 

How Long Does It Take Lasix to Remove Fluid?

The name Lasix is derived from “lasts six hours” (referring to its duration of action). Lasix, a diuretic, works by increasing the amount of salt and water that the kidneys remove from the blood, which causes a decrease in blood volume. 

Before Using Lasix Medication for Water Retention Tell Your Doctor

  • if you are pregnant 
  • planning to become pregnant 
  • breastfeeding 
  • taking any prescription or nonprescription medicine 
  • any other medical condition 
  • if you are allergic to any ingredient in this medicine or to sulfonamides 
  • if you are unable to urinate 
  • if you have Kidney or Liver disease, Gout, Lupus, Diabetes 

What Important Information Do I Need to Know About Lasix?

Lasix for water retention will make you urinate more often, and you may get dehydrated easily. 

Be careful; Make sure you do not have it in excess as it may lead to a profound diuresis with water and electrolyte depletion. 

Lasix may decrease arterial responsiveness to norepinephrine. 

Lasix tends to antagonize the skeletal muscle relaxing effect of tubocurarine and may potentiate the action of succinylcholine. 

Lasix may increase the ototoxic potential of aminoglycoside antibiotics, especially in the presence of impaired renal function. 

What Are the Side Effects of the Water Retention Medication Lasix? 

Stop taking Lasix and contact your doctor immediately if any of the following severe side effects occur: 

  • Hearing loss
  • Infrequent urination
  • dehydration leading to collapse
  • blood clots 
  • inflammation of the pancreas

Common side effects of the water retention pill Lasix:

  • Yellowing of skin or eyes
  • loss of appetite
  • mouth and stomach irritation
  • cramping; diarrhea; constipation; nausea; vomiting;
  • ringing in the ears
  • abnormal skin sensations
  • feeling of whirling motion; dizziness; headache; blurred vision; seeing a yellow color
  • sensitivity to sunlight; redness; hives; itching; rash; muscle spasm; weakness
  • restlessness
  • bladder spasm
  • vein inflammation
  • fever

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