How to use Fenirex
Contents of the leaflet
- Package Leaflet: Information for the User
- Fenirex
- What is Fenirex and what is it used for
- Important information before taking Fenirex
- How to take Fenirex
- Possible side effects
- How to store Fenirex
- Contents of the pack and other information
Package Leaflet: Information for the User
Fenirex
500 mg + 25 mg + 200 mg, powder for oral solution preparation
Paracetamol + Pheniramine maleate + Ascorbic acid
Read the package leaflet carefully before taking the medicine, as it contains important information for the patient.
This medicine should always be taken exactly as described in the patient information leaflet or as directed by a doctor or pharmacist.
- Keep this leaflet, you may need to read it again.
- If you need advice or further information, consult a pharmacist.
- If you experience any side effects, including those not listed in this leaflet, tell your doctor or pharmacist. See section 4.
- If after 5 days there is no improvement or you feel worse, consult a doctor.
Table of Contents of the Leaflet
- 1. What is Fenirex and what is it used for.
- 2. Important information before taking Fenirex.
- 3. How to take Fenirex.
- 4. Possible side effects.
- 5. How to store Fenirex.
- 6. Contents of the pack and other information.
1. What is Fenirex and what is it used for
The medicine contains three active substances. Paracetamol acts as an analgesic and antipyretic.
Pheniramine maleate reduces congestion and swelling of mucous membranes, thereby relieving nasal passages, inhibiting the sneezing reflex, and reducing eye tearing. Ascorbic acid supplements vitamin C deficiencies in the body.
Fenirex is indicated for the symptomatic treatment of flu, colds, and flu-like conditions such as fever, headache, muscle aches, and inflammation of the nasal and throat mucosa.
The medicine is indicated for use in adults and adolescents over 15 years of age.
2. Important information before taking Fenirex
When not to take Fenirex:
- severe liver failure,
- glaucoma (increased eye pressure) with a narrow angle of filtration,
- prostate enlargement;
Warnings and precautions
Before taking Fenirex, discuss with your doctor or pharmacist if you have:
- kidney failure,
- eye diseases,
- hypertension,
- diabetes,
- thyroid disorders,
- heart diseases,
- asthma or allergies (especially to sulfites).
Consult a doctor or pharmacist if you have a high fever, signs of secondary infection, or if symptoms persist for more than 5 days.
It is not recommended to drink alcoholic beverages, take medicines containing alcohol, or use sedatives while taking Fenirex.
To avoid the risk of overdose, do not take other medicines containing paracetamol at the same time as Fenirex (see section: How to take Fenirex).
Paracetamol may cause severe skin reactions, such as acute generalized exanthematous pustulosis, Stevens-Johnson syndrome, and toxic epidermal necrolysis, which can be fatal. Inform your doctor about any skin reactions and stop taking the medicine if you experience a skin rash or any other sign of allergy.
Paracetamol should be used with caution in patients with a deficiency of glucose-6-phosphate dehydrogenase (G6PD).
Effect on laboratory tests
Paracetamol may affect the determination of uric acid in the blood by the phosphotungstic method, as well as the determination of glucose by the oxidase-peroxidase method.
Children and adolescents
Fenirex should not be given to children and adolescents under 15 years of age.
Fenirex and other medicines
Tell your doctor or pharmacist about all medicines you are taking, have recently taken, or plan to take.
While taking Fenirex, it is not recommended to use:
- sedatives, especially barbiturates (medicines that cause relaxation and sleepiness),
- antidepressants and sedatives,
- antipsychotics,
- phenobarbital, primidone, phenytoin, carbamazepine (medicines used to treat epilepsy),
- chloramphenicol, rifampicin, isoniazid (antibiotics),
- zidovudine (a medicine used to treat HIV infection),
- anticoagulants (warfarin and acenocoumarol),
- metoclopramide, domperidone (medicines used to treat nausea and vomiting),
- cholestyramine (a medicine that lowers lipid levels in the blood),
- diflunisal (a salicylate, a derivative of acetylsalicylic acid),
- interferon (a medicine used to treat hepatitis C),
- MAO inhibitors, including moclobemide (medicines used to treat depression),
- muscle relaxants (such as atropine, hyoscine),
- disopyramide (a medicine used to treat heart rhythm disorders),
- flucloxacillin (an antibiotic), due to the serious risk of a blood and fluid disorder (metabolic acidosis with a large anion gap), which requires emergency treatment and may occur especially in patients with severe kidney dysfunction, sepsis (a condition where bacteria and their toxins circulate in the blood, leading to organ damage),
malnutrition, chronic alcoholism, as well as patients taking maximum daily doses of paracetamol.
Before taking Fenirex with the above-mentioned medicines, consult a doctor.
If you are taking diuretics or have been taking painkillers for a long time, consult a doctor or pharmacist before taking Fenirex.
To avoid overdose, make sure that other medicines taken at the same time do not contain paracetamol or pheniramine.
Fenirex with food, drink, and alcohol
While taking Fenirex, do not drink alcohol or take medicines containing alcohol. Alcohol may enhance the sedative effect of the Fenirex component.
Pregnancy, breastfeeding, and fertility
If you are pregnant, breastfeeding, think you may be pregnant, or plan to have a baby, consult a doctor or pharmacist before taking this medicine.
It is not recommended to take Fenirex during pregnancy or breastfeeding.
Driving and using machines
Do not drive or operate machinery, as the medicine may cause daytime drowsiness, dizziness, or impaired concentration or vision.
The medicine contains less than 1 mmol (23 mg) of sodiumper recommended dose, i.e., 3 sachets per day, which means that the medicine is considered "sodium-free".
The medicine contains mannitol.The medicine may have a mild laxative effect.
3. How to take Fenirex
This medicine should always be taken exactly as described in the patient information leaflet or as directed by a doctor or pharmacist. If you have any doubts, consult a doctor or pharmacist.
Recommended dose
The recommended dose is 1 sachet 2 or 3 times a day. The interval between doses should be at least 4 hours. Do not exceed the recommended dose.
The contents of the sachet should be dissolved in a glass (about 250 ml) of cold or hot water.
In patients with severe kidney failure (creatinine clearance <10 ml min), the interval between doses should be at least 8 hours.
Do not take for more than 5 days without consulting a doctor.
Overdose of Fenirex
If you have taken more than the recommended dose of Fenirex, inform your doctor or pharmacist immediately.
Overdose of paracetamol may cause severe liver damage. Symptoms of overdose usually appear within the first 24 hours (nausea, vomiting, loss of appetite, malaise, impaired consciousness). In case of severe overdose, seek medical attention immediately.
Missed dose of Fenirex
Do not take a double dose to make up for a missed dose.
If you have any further doubts about taking this medicine, consult a doctor or pharmacist.
4. Possible side effects
Like all medicines, Fenirex can cause side effects, although not everybody gets them.
Rare side effects(occur in up to 1 in 1,000 people):
- decrease in red blood cell count, manifested as pale skin, weakness, and shortness of breath (hemolytic anemia),
- changes in blood morphology (decrease in granulocyte count - granulocytopenia),
- malaise, increased liver enzyme activity
Very rare side effects(occur in less than 1 in 10,000 people):
- changes in blood morphology (decrease in platelet count - thrombocytopenia, leukocytes - leukopenia, or neutrophils - neutropenia),
- allergic reactions (anaphylactic shock, Quincke's edema, rash, urticaria, skin rash)
- severe skin reactions.
Other possible side effects(frequency cannot be estimated from available data) that may occur with this type of medicine:
disorientation, hallucinations, agitation, anxiety, dizziness, drowsiness, insomnia, memory disorders, difficulty concentrating, coordination disorders, tremors, accommodation disorders, pupil dilation, balance disorders, dizziness, palpitations, blood pressure drop when changing position to standing, dry mouth, constipation, itching, eczema, rash, swelling, urinary retention.
Anticholinergic side effects, such as dry mouth, accommodation disorders, urinary retention, agitation, and excitement, are more common in the elderly.
Vitamin C in doses exceeding 1 g facilitates the development of kidney stones and may lead to sudden breakdown of red blood cells in patients with glucose-6-phosphate dehydrogenase deficiency-related hemolysis.
Reporting side effects
If you experience any side effects, including those not listed in this leaflet, tell your doctor or pharmacist. Side effects can be reported directly to the Department of Drug Safety Monitoring of the Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products
Al. Jerozolimskie 181C
02-222 Warsaw
Phone: +48 22 49 21 301
Fax: +48 22 49 21 309
Website: https://smz.ezdrowie.gov.pl
Side effects can also be reported to the marketing authorization holder.
By reporting side effects, you can help provide more information on the safety of this medicine.
5. How to store Fenirex
There are no special precautions for storage.
Keep the medicine out of sight and reach of children.
Do not use this medicine after the expiration date (EXP) stated on the carton.
The expiration date refers to the last day of the specified month.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines that are no longer needed. This will help protect the environment.
6. Contents of the pack and other information
What Fenirex contains
- The active substances are: paracetamol 500 mg, pheniramine maleate 25 mg, and ascorbic acid (vitamin C) 200 mg.
- Other ingredients are: mannitol (E 421), sodium cyclamate, citric acid, lemon flavor*. *Lemon flavor contains: maltodextrin, flavoring substances (including citral and limonene), arabic gum (E414), silicon dioxide (E551), alpha-tocopherol (E307).
What Fenirex looks like and contents of the pack
A mixture of powder and granules, white in color.
Sachets made of C/PAP/Aluminum/PE foil, placed in a cardboard box.
The pack contains: 8 sachets.
Marketing authorization holder
Biofarm Sp. z o.o.
ul. Wałbrzyska 13
60-198 Poznań
Phone: +48 61 66 51 500
Manufacturer
Fortex Nutraceuticals Ltd.
10, Prohladen kat str.,
Suhodol Dist.,
1362 Sofia, Bulgaria
Date of last revision of the leaflet:
- Country of registration
- Dosage formPowder, 500 mg + 25 mg + 200 mg
- ATC codeN02BE51
- Active substance
- Prescription requiredNo
- Manufacturer
- ImporterFortex Nutraceuticals Ltd
- This information is for reference only and does not constitute medical advice. Always consult a doctor before taking any medication. Oladoctor is not responsible for medical decisions based on this content.
- Alternatives to FenirexDosage form: Tablets, 325 mg + 30 mg + 10 mgActive substance: paracetamol, combinations excl. psycholepticsManufacturer: Polfarmex S.A.Prescription not requiredDosage form: Granulate, 500 mg + 200 mg + 4 mgActive substance: paracetamol, combinations excl. psycholepticsManufacturer: Natur Produkt Pharma Sp. z o.o.Prescription not requiredDosage form: Tablets, 500 mg + 200 mg + 4 mgActive substance: paracetamol, combinations excl. psycholepticsManufacturer: Natur Produkt Pharma Sp. z o.o.Prescription not required
Online doctors for Fenirex
Discuss questions about Fenirex, including use, safety considerations and prescription review, subject to medical assessment and local regulations.
Get Fenirex Prescription Online
Fill in a 2-min form
Tell us your symptoms, history, and what medicine you're requesting.
Pick a doctor or let us assign
Choose a specialist or we'll match you with the next available doctor.
Doctor reviews your case
Usually within 30 minutes. They may ask follow-up questions via chat.
Collect from any pharmacy
Electronic prescription sent to your email — valid across Spain.
Frequently Asked Questions
Fenirex does not require a prescription in Poland. You can check with a doctor online whether this medicine may be appropriate for your situation.
The active ingredient in Fenirex is paracetamol, combinations excl. psycholeptics. This information helps identify medicines with the same composition but different brand names.
Fenirex is manufactured by Fortex Nutraceuticals Ltd. Pharmacy brands and packaging may differ depending on the distributor.
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether Fenirex is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
Spain has a well-developed healthcare infrastructure across major cities such as Madrid, Barcelona, Valencia, and Seville. Pharmacies are widely available and operate under strict regulations, ensuring access to prescribed medications.
You can buy Fenirex in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.
To obtain a prescription, you can use Oladoctor:
Other medicines with the same active substance (paracetamol, combinations excl. psycholeptics) include Agripin, Aliflusin, Aliflusin. 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.
















