Furosemide Kalceks

Furosemide is a diuretic that helps the body get rid of excess fluid by increasing urine production, relieving symptoms caused by too much fluid.

Form
injektio-/infuusioneste, liuos
Strength
10 mg/ml
Active Ingredient
Furosemide
Manufacturer
AS Kalceks

How to Use

Dosage

Your doctor will decide how much medicine you need, how it will be given, and for how long.

Method

This medicine is given by a doctor or nurse as a slow injection or "drip" into a vein, or into a muscle. Once possible, treatment will switch to an oral medicine.

Important

Your doctor will decide the maximum daily dose based on your condition.

Possible Side Effects

COMMON
  • Fluid loss and mineral imbalances (low sodium, potassium, magnesium, calcium), low blood volume.
  • Increased blood fat levels (triglycerides).
  • Low blood pressure, dizziness or fainting when standing up (especially during infusion).
  • Increased blood creatinine (shows how your kidneys are working).
  • Thickened blood (if you urinate more than normal).
  • Low blood sodium and chloride (can cause apathy, leg cramps, loss of appetite, weakness, drowsiness, vomiting, confusion).
  • Low blood potassium (can cause muscle weakness, tingling, numbness, inability to move body parts, vomiting, constipation, gas, increased urination, severe thirst, slow or irregular heartbeat).
  • Increased blood cholesterol.
  • Increased blood uric acid.
  • Gout attack.
  • Brain problems due to severe liver failure.
  • More urine than normal.
RARE
  • Severe allergic reaction (rash, swelling of face, lips, tongue, throat, breathing difficulties, unconsciousness).
  • Severe skin reactions (blistering, peeling skin, small itchy red-purple sores on skin, genitals, or mouth).
  • Muscle damage (persistent muscle pain, cramps, weakness, cola-colored urine, nausea).
  • Severe decrease in certain white blood cells (fever, chills, mouth sores, sore throat).
  • Low platelet count.
  • Increased blood sugar (may worsen or reveal diabetes).
  • Hearing problems (often temporary), especially with kidney issues or fast injection.
  • Deafness (sometimes permanent).
  • Nausea.
  • Itching, hives, rash, skin reactions (redness, blistering, peeling), increased sun sensitivity.
  • Increased specific white blood cells (eosinophilia).
  • Decreased white blood cell count (leukopenia).
  • Tingling, numbness, or burning pain in limbs.
  • Ringing in the ears (tinnitus).
  • Inflammation of blood vessels (vasculitis).
  • Vomiting, diarrhea.
  • Kidney damage (interstitial nephritis).
  • Fever.
  • Low red blood cell count due to abnormal breakdown (hemolytic anemia).
  • Bone marrow stops producing enough new blood cells (aplastic anemia).
  • Acute pancreatitis.
  • Liver disease ('intrahepatic cholestasis') and increased liver enzymes, causing jaundice (yellow skin, dark urine, fatigue).
  • Systemic lupus erythematosus (SLE) may worsen or become active.
  • Low blood calcium (can cause muscle cramps, twitching, throat spasms, breathing difficulties, nausea, seizures, pain).
  • Low blood magnesium (can cause muscle cramps or heart rhythm disorders).
  • Dizziness, fainting, loss of consciousness, headache.
  • Blood clots in blood vessels (thrombosis), especially in elderly.
  • Excessive urination (especially in elderly and children), circulatory problems (headache, dizziness, blurred vision, dry mouth, thirst, low blood pressure).
  • Decreased blood pH (metabolic acidosis).
  • Pain after injection into a muscle.

Important Warnings

  • Do not use if you are allergic to furosemide or sulfonamide antibiotics.
  • Do not use if you have severe kidney failure and cannot urinate, or if you are in a coma due to liver problems.
  • Do not use if you have very low blood potassium or sodium, or if you are severely dehydrated (e.g., from severe diarrhea or vomiting).
  • Do not use if you are breastfeeding.
  • Tell your doctor if you have low blood pressure, diabetes, gout, or difficulty urinating.
Show 1 more warnings
  • Inform your doctor if you have hearing problems or a disease called systemic lupus erythematosus (SLE).

Use in Elderly Patients

Category A

Suitable for older adults. Consider possibility of orthostatic hypotension and electrolyte disturbances. (updated 19.5.2025)