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FRIONEX 600 MG EFFERVSCENT TABLETS

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About the medicine

How to use FRIONEX 600 MG EFFERVSCENT TABLETS

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This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet: Information for the User

Frionex 600 mg Effervescent Tablets

Acetylcysteine

Read this entire leaflet carefully before starting to take this medicine, as it contains important information for you.

Follow exactly the administration instructions of the medicine contained in this leaflet or as indicated by your doctor or pharmacist.

  • Keep this leaflet, as you may need to read it again.
  • If you need advice or more information, consult your pharmacist.
  • If you experience side effects, consult your doctor or pharmacist, even if they are side effects not listed in this leaflet. See section 4.
  • You should consult a doctor if your condition worsens or does not improve after 5 days.

Contents of the Package Leaflet

  1. What is Frionex and what is it used for
  2. What you need to know before taking Frionex
  3. How to take Frionex
  4. Possible side effects
  5. Storage of Frionex
  6. Package Contents and Additional Information

1. What is Frionex and what is it used for

Acetylcysteine, the active ingredient of this medicine, belongs to a group of medicines called mucolytics, which act by decreasing the viscosity of mucus, making it more fluid and facilitating its elimination.

This medicine is indicated to facilitate the elimination of excess mucus and phlegm in colds and flu, for adults.

You should consult a doctor if your condition worsens or does not improve after 5 days.

Doctor consultation

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Discuss your symptoms and treatment with a doctor online.

2. What you need to know before taking Frionex

Do not take Frionex:

  • If you are allergic to acetylcysteine or to any of the other components of this medicine (listed in section 6).
  • Do not administer to children under 2 years of age.

Warnings and Precautions

Consult your doctor or pharmacist before starting to take this medicine.

If you have asthma or a severe respiratory disease, you should consult your doctor before taking this medicine.

The possible sulfurous odor (like rotten eggs) of the medicine is characteristic of the active ingredient, but it does not indicate that the medicine is in poor condition.

If you experience stomach discomfort when taking the medicine, stop treatment and consult your doctor or pharmacist. Caution is recommended in patients with peptic ulcer or history of peptic ulcer.

During the first days of treatment, you may notice an increase in mucus and phlegm, which will decrease throughout the treatment.

Children and Adolescents

Children and adolescents should not take this medicine. There are other presentations more suitable for this population.

Taking Frionex with Other Medicines

Inform your doctor or pharmacist if you are using, have recently used, or may need to use any other medicine.

Concomitant therapy with nitroglycerin may cause headache and hypotension should be monitored, which can be severe.

Concomitant administration with the antiepileptic carbamazepine may cause a decrease in the efficacy of carbamazepine.

Do not take concomitantly with antitussive medicines (for cough) or with those that decrease bronchial secretions (such as antihistamines and anticholinergics), as it may cause an accumulation of fluidified mucus.

When taking any medicine that contains minerals such as iron or calcium, or any medicine with antibiotics such as amphotericin B, ampicillin sodium, cephalosporins, lactobionate, erythromycin, and some tetracyclines, you should separate the intake of this medicine by at least 2 hours.

It is not recommended to dissolve this medicine with other medicines.

Taking Frionex with Food and Drinks

The intake of food and drinks does not affect the efficacy of this medicine.

Pregnancy, Breastfeeding, and Fertility

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medicine.

Its use should be avoided during breastfeeding.

Driving and Using Machines

There is no evidence of effects on the ability to drive and use machines.

Frionex contains Lactose, Sorbitol (E-420), and Sodium

This medicine contains lactose. If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medicine.

This medicine contains 0.52 mg of sorbitol in each tablet.

This medicine contains 138.83 mg of sodium (main component of table salt/cooking salt) in each tablet. This is equivalent to 6.9% of the maximum daily intake of sodium recommended for an adult.

3. How to Take Frionex

Follow exactly the administration instructions of the medicine contained in this leaflet or as indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist.

The recommended dose is:

Adults: 1 tablet, 1 time a day. Do not exceed the dose of 1 tablet per day.

How to take:

This medicine is taken orally.

Dissolve in a glass of water, do not drink until the effervescence has completely stopped. It is recommended to drink plenty of liquid throughout the day.

You should consult a doctor if your condition worsens or does not improve after 5 days of treatment.

Use in Children and Adolescents

Children and adolescents should not take this medicine. There are other presentations more suitable for this population.

If You Take More Frionex Than You Should

If you take more acetylcysteine than you should, you may notice: nausea, vomiting, burning and stomach pain, diarrhea, or any other side effect described in section 4. Possible Side Effects.

In case of overdose or accidental ingestion, consult your doctor or pharmacist, or call the Toxicology Information Service, phone: 91.562.04.20, indicating the medicine and the amount taken.

If you have any other doubts about the use of this medicine, ask your doctor or pharmacist.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible Side Effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

The following side effects may occur:

Uncommon (may affect up to 1 in 100 patients): hypersensitivity, headache, tinnitus, tachycardia, vomiting, diarrhea, stomatitis, abdominal pain, nausea, urticaria, skin rash, angioedema, pruritus, increased body temperature, hypotension.

Rare (may affect up to 1 in 1,000 patients): somnolence, bronchospasm, respiratory distress, gastrointestinal disorders. Very rare (may affect up to 1 in 10,000 patients): allergic reactions, anaphylactic shock, hemorrhage, severe skin reactions such as Stevens-Johnson syndrome and Lyell syndrome, sometimes identified with the concomitant use of another drug.

Frequency not known (cannot be estimated from the available data): facial swelling.

In case of any alteration in the skin or mucous membranes, the administration of acetylcysteine should be immediately interrupted and medical assistance should be sought.

Reporting of Side Effects

If you experience any type of side effect, consult your doctor or pharmacist, even if it is a side effect not listed in this leaflet. You can also report them directly through the Spanish Medicines and Health Products Agency (AEMPS) https://www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medicine.

5. Storage of Frionex

Keep this medicine out of the sight and reach of children.

No special storage conditions are required.

Do not use this medicine after the expiration date stated on the packaging after CAD. The expiration date is the last day of the month indicated.

Medicines should not be disposed of via wastewater or household waste. Deposit the packaging and medicines that you no longer need in the SIGRE collection point at the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and medicines that you no longer need. This will help protect the environment.

6. Package Contents and Additional Information

Composition of Frionex

  • The active ingredient is acetylcysteine. Each tablet contains 600 mg of acetylcysteine.
  • The other components (excipients) are: anhydrous citric acid (E-330), ascorbic acid (E-300), sodium hydrogen carbonate (E-500), anhydrous sodium carbonate (E-500), lactose, mannitol (E-421), lemon flavor (contains sorbitol (E-420)), sodium cyclamate, sodium saccharin (E-954), sodium citrate (E-331).

Appearance of the Product and Package Contents

Frionex is presented in blister packs with round, white, effervescent tablets, with a smooth surface and no defects, and with a notch on one side.

Each package contains 20 effervescent tablets.

Marketing Authorization Holder and Manufacturer

Marketing Authorization Holder

Kern Pharma, S.L.

Venus, 72 - Pol. Ind. Colón II

08228 Terrassa - Barcelona

Spain

Manufacturer

Hermes Pharma Gmbh

Hans-Urmiller-Ring 52

82515, Wolfratshausen

Germany

Date of the Last Revision of this Leaflet: November 2021

Detailed information about this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/.

Online doctors for FRIONEX 600 MG EFFERVSCENT TABLETS

Discuss questions about FRIONEX 600 MG EFFERVSCENT TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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Tarek Agami

General medicine 11 years exp.

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

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Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

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Nuno Tavares Lopes

Family medicine 18 years exp.

Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

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Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

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Anastasiia Shalko

Family medicine 13 years exp.

Dr. Anastasiia Shalko is a general practitioner with a background in both paediatrics and general medicine. She graduated from Bogomolets National Medical University in Kyiv and completed her paediatric internship at the P.L. Shupyk National Medical Academy of Postgraduate Education. After working as a paediatrician in Kyiv, she relocated to Spain, where she has been practising general medicine since 2015, providing care for both adults and children.

Her work focuses on urgent, short-term medical concerns – situations where patients need quick guidance, symptom assessment and clear next steps. She helps people understand whether their symptoms require in-person evaluation, home management or a change in treatment. Common reasons for booking an online consultation include:

  • acute respiratory symptoms (cough, sore throat, runny nose, fever)
  • viral illnesses such as colds and seasonal infections
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Dr. Shalko works specifically with urgent and short-term problems, providing practical recommendations and helping patients determine the safest next step. She explains symptoms clearly, guides patients through decision-making and offers straightforward medical advice for everyday acute issues.

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Tomasz Grzelewski

Dermatology 21 years exp.

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques.

For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance.

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Frequently Asked Questions

Is a prescription required for FRIONEX 600 MG EFFERVSCENT TABLETS?
FRIONEX 600 MG EFFERVSCENT TABLETS does not require a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in FRIONEX 600 MG EFFERVSCENT TABLETS?
The active ingredient in FRIONEX 600 MG EFFERVSCENT TABLETS is acetylcysteine. This information helps identify medicines with the same composition but different brand names.
Who manufactures FRIONEX 600 MG EFFERVSCENT TABLETS?
FRIONEX 600 MG EFFERVSCENT TABLETS is manufactured by Kern Pharma S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of FRIONEX 600 MG EFFERVSCENT TABLETS online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether FRIONEX 600 MG EFFERVSCENT TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to FRIONEX 600 MG EFFERVSCENT TABLETS?
Other medicines with the same active substance (acetylcysteine) include ACETYLCYSTEINE ABEX 600 mg EFFERVSCENT TABLETS, ACETYLCYSTEINE ALTER 600 mg EFFERVSCENT TABLETS, ACETYLCYSTEINE AUROVITAS 200 mg EFFERVSCENT TABLETS. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.
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