FLUIMUCIL 100 mg PACKETS

Fluimucil 100 mg is a medicine supplied as granules for oral solution. Each sachet contains 100 mg of acetylcysteine. It belongs to a group of expectorant medicines known as mucolytics, which reduce the viscosity of bronchial mucus and make it easier to cough up.

Fluimucil 100 mg – uses, dosage and important warnings

What is Fluimucil 100 used for?

Fluimucil 100 is used in acute and chronic respiratory conditions associated with excessive production of thick, viscous mucus and difficulty coughing it up, including:

• acute bronchitis;
• chronic bronchitis and its exacerbations;
• bronchiectasis;
• pulmonary emphysema;
• cystic fibrosis.

Acetylcysteine acts on the structure of thick mucus, making it less viscous and easier to expectorate. It does not treat the underlying cause of a respiratory illness and does not replace antibiotics or other treatment prescribed by a doctor.

How is the medicine prepared and taken?

Dissolve the required number of sachets in half a glass of water. Stir with a spoon if necessary and drink the solution without unnecessary delay. The prepared solution should not be mixed with other medicines.

For children over 2 years of age, the prepared solution may be given with a spoon or in a feeding bottle.

For acute symptoms, treatment is generally continued for 5 to 10 days. Contact a doctor if symptoms persist, recur more frequently or worsen. Treatment lasting longer than 10 days should be prescribed and supervised by a doctor.

When must Fluimucil 100 not be used?

• in patients allergic to acetylcysteine or any excipient;
• in children under 2 years of age;
• during pregnancy or breastfeeding without a doctor's decision;
• together with cough suppressants unless specifically directed by a doctor.

When is additional caution required?

Consult a doctor or pharmacist before use if you have bronchial asthma, histamine intolerance, a current or previous stomach or duodenal ulcer, or if you use medicines known to irritate the gastrointestinal mucosa.

At the beginning of treatment, mucus may become thinner and its volume may increase. Medical advice is required if the patient cannot cough up the increased amount of mucus effectively.

Interactions with other medicines

• Cough suppressants: reduced cough reflex may cause mucus retention.
• Antibiotics: take antibiotics and acetylcysteine at least 2 hours apart. This restriction does not apply to loracarbef.
• Activated charcoal: may reduce the effect of Fluimucil 100.
• Nitroglycerin: combined use may cause a substantial reduction in blood pressure and headache.

Acetylcysteine may interfere with certain laboratory tests for salicylates in blood and ketone bodies in urine. Tell the healthcare professional that you are taking this medicine before testing.

Possible side effects

Uncommon effects include hypersensitivity reactions, headache, ringing in the ears, rapid heartbeat, nausea, vomiting, diarrhoea, abdominal pain, inflammation of the mouth, rash, itching, hives, fever and low blood pressure.

Rare effects include bronchospasm, difficulty breathing and indigestion. Very rare effects include serious allergic reactions and bleeding. Very rare serious skin reactions, including Stevens–Johnson syndrome and Lyell syndrome, have also been reported.

Pregnancy and breastfeeding

Do not use Fluimucil 100 on your own during pregnancy or breastfeeding. It may be used only when prescribed by a doctor and under direct medical supervision.

Important information about the ingredients

• Each sachet contains 775 mg of sorbitol, a source of fructose.
• Each sachet contains 25 mg of aspartame, a source of phenylalanine that may be harmful to people with phenylketonuria.
• The orange flavour contains glucose and lactose.

Patients with hereditary fructose intolerance, intolerance to certain sugars or phenylketonuria should consult a doctor before use.

Composition, pack and manufacturer

• Active ingredient: one sachet containing 1 g of granules provides 100 mg of acetylcysteine.
• Excipients: aspartame (E951), orange flavour containing glucose and lactose, and sorbitol (E420).
• Pack size: 30 sachets.
• Pharmaceutical form: granules for oral solution.
• Marketing authorisation holder: Bonifar d.o.o. Novi Beograd, Serbia.
• Manufacturer: Zambon Switzerland Ltd, Switzerland.
• ATC code: R05CB01.
• Supply status in Serbia: available without a medical prescription.

Storage

Keep out of the sight and reach of children and store below 30°C. Use the prepared solution immediately. Do not use the medicine after the expiry date shown on the packaging.

Related article and category

Read more about dry and productive cough, mucus clearance and symptoms requiring medical assessment in: How to stop coughing quickly and easily.

Explore related products in: Throat and respiratory support products.

Related products

These are related options that may be considered when Fluimucil is unavailable. They should not be taken together with Fluimucil without professional advice, particularly when they also contain NAC:

• Dietpharm MukoNAC, 10 sachets
• Max Medica MaxoMucil 600, 10 sachets

Source: Patient information leaflet, Summary of Product Characteristics and packaging text approved by the Serbian Medicines and Medical Devices Agency – ALIMS. View the official patient leaflet.
Source checked: 2 August 2026.

This information does not replace medical examination, professional advice or the original patient leaflet supplied with the medicine.