Frusenex 100 mg
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Frusenex 100 mg


Frusenex 100 mg is a tablet that is used to treat edema (swelling) in people who are suffering from heart failure, or kidney or liver disease. Furosemide is the active ingredient of this medicine. Doctors may prescribe this medicine for other purposes not listed in this document.

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A tablet that is used to treat edema (swelling) in people who are suffering from heart failure, or kidney or liver disease. Healthcare professionals may also prescribe this medicine to reduce high blood pressure (hypertension) and to treat other conditions not listed in this document. Frusenex 100 mg belongs to the class of medications diuretics or water tablets. Furosemide is the active ingredient of this medicine. However, it also contains other inactive ingredients such as lactose monohydrate, microcrystalline cellulose, pregelatinized starch, sodium lauryl sulfate, stearic acid, and others. It is not allowed to use this medicine without a doctor’s prescription.

The manufacturer of Frusenex 100 mg is Geno Pharmaceuticals Ltd.

How to Use Frusenex 100 mg?

Administer the tablet whole by mouth with a glass full of water and avoid other drinks such as alcohol because it may increase the risk of adverse effects. Do not break, crush, or chew the tablet while swallowing. To get the most benefit from Frusenex 100 mg, you should administer the pill each day and at the same time. In case you notice stomach upset or nausea, you can take the tablet with milk or light food. The recommended dose usually is one tablet or as directed by your doctor.

In any case, if you are using Frusenex 100 mg more frequently than is allowed, your condition will not improve faster. Your dosage may be adjusted by the doctor in case you do not notice the desired result.

The liquid form of this medicine requires a special measuring device or spoon. Otherwise, you may get the wrong dose, which may also increase your risk of adverse effects. If you see no improvements in your health condition in the first week of treatment, discuss it with your healthcare professional.


The dosages commonly are based on certain factors such as:

  • The severity of your medical condition
  • Age
  • Weight (for children only)
  • Other drugs that you may be using
  • Response to treatment

Thereby, physicians prescribe different dosages for their patients. However, do not use Frusenex 100 mg or consult a doctor if you have doubts about what dosage is better for you. Moreover, if you stop the treatment too early, symptoms may return and your condition may become worse or more difficult to treat.

  • Frusenex 100 mg

Missed Dose

In case you miss a dose, usually is recommended to administer it as soon as you remember. However, skip the missed dose if it is almost time for the next dose. It is not allowed to administer an increased dose of Frusenex 100 mg the next time to make up because you may experience severe adverse effects.


You may rarely experience an overdose caused by an increased dose of Furosemide. Symptoms of overdose include passing out, irregular heartbeat, severe dizziness, trouble breathing, and others. If you notice any of the symptoms listed above, stop taking this drug and ask for medical help right away. Ask your doctor if you have any questions.

Adverse Effects of Frusenex 100 mg

You may experience certain side effects while you are on treatment with this medicine but if your body adjusts to Furosemide, you may not experience any of the following adverse reactions. There are certain factors that can provoke side effects such as overdose and allergy.

Mild Side Effects

One factor that can cause mild side effects is dehydration. Thus, you should increase your water intake to diminish this problem. Check below some examples:

Moderate Side Effects

Patients can continue the treatment safely even if they experience any of the following negative effects. For example:

  • Vomiting
  • Diarrhea
  • Indigestion

Severe Side Effects

Rarely, you may notice this category of adverse reactions due to an increased dose of Furosemide. In any case, you should stop taking this drug and seek medical attention right away if you are experiencing any of the following negative effects. Moreover, your healthcare professional may be able to help you to avoid or prevent side effects. Check some examples below:

  • Inflammation of the colon (enterocolitis)
  • Heartburn
  • Swallowing problems
  • Sore tongue
  • Photosensitivity
  • Stomach pain
  • Vision problems (such as blurred or double vision)
  • Sudden blindness

This article does not contain all possible adverse effects. Inform your physician, in case you notice any of the negative effects listed above or any other effects.

Drug Interaction

There are certain medicines and substances that may interact with Furosemide. Thus, other drugs may increase the risk of side effects or decrease the effectiveness of Frusenex 100 mg. Inform your doctor about all products that you are using before taking this medicine. For example supplements, vitamins, herbal products, prescription medications, nonprescription medications, and others. Check below some examples:

  • Phenytoin
  • Digoxin
  • Warfarin
  • Strontium
  • Phenobarbital
  • Isotretinoin
  • Acitretin
  • Alcohol
  • Vitamin A
  • Rifampin
  • Rifabutin
  • Quinapril
  • Magnesium supplements
  • Levoketoconazole
  • Isotretinoin
  • Calcium supplements
  • Bcg
  • Aminolevulinic acid

This medicine may also interact with certain health conditions. Examples include:

  • Intestinal disease (such as colitis)
  • Hepatotoxicity
  • Esophageal irritation

Before using Frusenex 100 mg, you should talk to a doctor because this document does not contain a full list of disease and drug interactions. Moreover, it is not allowed to start, stop, or change the dosages without the doctor’s recommendation because it may lead to undesired results.


Tell your doctor if you are allergic to the ingredients of the drug or if you have any other allergies. In addition, before using Frusenex 100 mg, you should tell your doctor if you are experiencing any of the following medical conditions. For example:

  • Swallowing problems
  • Diabetes
  • Cancer
  • Surgery
  • Heart disease (such as heart failure)
  • Esophagus problems (such as hiatal hernia, heartburn, and others)

Tell your doctor if you are pregnant or want to become pregnant before taking Frusenex 100 mg because it may harm your unborn baby. In addition, discuss with your doctor before breastfeeding because Furosemide passes into breast milk.

Do not use this medicine in children without the doctor’s approval because it may be harmful to them.


  • It is recommended to store this medicine at room temperature (below 30 Celsius degrees) and away from direct sunlight and moisture. Therefore, you should not keep Frusenex 100 mg in the bathroom.
  • Keep away Furosemide from the reach of children and pets because it may be harmful to them.

Additional information

Active Ingredient



Geno Pharmaceuticals Ltd.


10 tabs/blister



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