


Ask a doctor about a prescription for DIFENADOL 400 mg FILM-COATED TABLETS
Package Leaflet: Information for the User
Difenadol 400 mg Film-Coated Tablets
ibuprofen
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Follow the instructions for administration of the medicine contained in this leaflet or as indicated by your doctor or pharmacist.
Contents of the Package Leaflet
Difenadol contains the active substance ibuprofen. Ibuprofen is a medicine that reduces fever and relieves pain (non-steroidal anti-inflammatory medicine (NSAID).
In adults and adolescents from 40 kg body weight (12 years and over) it is used for the short-term symptomatic treatment of mild to moderate pain and/or fever.
Warnings and precautions
Adverse reactions are minimized by using the lowest effective dose for the shortest duration.
You should consult your treatment with your doctor or pharmacist before taking Difenadol:
Effects on the gastrointestinal tract
The use of ibuprofen in combination with other non-steroidal anti-inflammatory medicines (NSAIDs), including so-called COX-2 inhibitors (cyclooxygenase-2 inhibitors), should be avoided.
Gastrointestinal bleeding, ulcers, and perforation:
There have been reports of gastrointestinal bleeding, ulcers, and perforation, (which can be fatal) during treatment with NSAIDs. At any time during treatment, with or without prior warning symptoms, and with or without a history of previous serious gastrointestinal events.
The risk of experiencing gastrointestinal bleeding, ulcers, and perforation is higher with increasing doses of NSAIDs and is higher in patients with a history of ulcers, especially with complications of bleeding or perforation (see section 2 "Do not take Difenadol") and in elderly patients. These patients should start treatment with the lowest available dose.
For these patients, as well as for patients who require additional treatment with low doses of acetylsalicylic acid or other medications that may increase the risk of gastrointestinal disorders, your doctor will consider the possibility of associating a stomach protective medication (e.g., misoprostol or proton pump inhibitors).
If you have a history of adverse reactions that affect the gastrointestinal tract - especially in elderly patients - consult your doctor in case of unusual abdominal symptoms (especially gastrointestinal bleeding), particularly at the start of therapy.
Cautious use is recommended if you are also taking other medications that may increase the risk of ulcers or bleeding, such as oral corticosteroids, anticoagulants (anticoagulants like warfarin), selective serotonin reuptake inhibitors (used to treat psychiatric disorders, including depression), or platelet aggregation inhibitors like acetylsalicylic acid (see section 2 "Other medicines and Difenadol").
You should stop treatment and consult a doctor if you develop gastrointestinal bleeding or ulcers during treatment with Difenadol.
Effects on the cardiovascular system
Anti-inflammatory/analgesic medicines like ibuprofen may be associated with a small increased risk of heart attack or stroke, especially when used at high doses. Do not exceed the recommended dose or duration of treatment.
You should discuss your treatment with your doctor or pharmacist before taking ibuprofen if:
Severe skin reactions (SCARs)
Severe skin reactions have been reported, including exfoliative dermatitis, erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (DRESS), acute generalized exanthematous pustulosis (AGEP), in association with ibuprofen treatment. Discontinue treatment with Difenadol and seek medical attention immediately if you notice any of the symptoms related to these severe skin reactions described in section 4.
If you have chickenpox, it is advisable to avoid the use of ibuprofen.
Infections
Difenadol may mask the signs of an infection, such as fever and pain. Consequently, Difenadol may delay appropriate treatment of the infection, which may increase the risk of complications. This has been observed in bacterial pneumonia and bacterial skin infections related to chickenpox. If you take this medicine while having an infection and the symptoms of the infection persist or worsen, consult a doctor without delay.
Other warnings
In very rare cases, severe acute hypersensitivity reactions (e.g., anaphylactic shock) have been observed. At the first signs of a hypersensitivity reaction after taking ibuprofen, treatment should be discontinued and a doctor consulted. Medically required measures, in line with the symptoms, should be initiated by specialized personnel.
Ibuprofen may reversibly inhibit platelet aggregation and function (platelet aggregation). Therefore, patients with coagulation disorders should be carefully monitored.
During prolonged use of ibuprofen, regular monitoring of liver function tests, kidney function, and blood counts is required.
Prolonged use of any type of pain reliever for headache may worsen it. If this situation is observed or suspected, a doctor should be consulted and treatment discontinued.
In general, the habitual use of different types of pain relievers can lead to the appearance of serious kidney problems with a risk of kidney failure (analgesic nephropathy). This risk can be increased in conditions of physical exertion associated with loss of salts and dehydration. Therefore, it should be avoided.
The risk of kidney failure increases in dehydrated patients, elderly patients, and those taking diuretics and ACE inhibitors.
In case of vision problems, please consult your doctor.
Signs of an allergic reaction to this medicine, including breathing problems, swelling of the face and neck area (angioedema), and chest pain, have been reported with ibuprofen. Discontinue treatment with ibuprofene immediately and contact your doctor or the emergency medical service as soon as possible if you observe any of these signs.
Elderly patients
Elderly patients have a higher frequency of adverse reactions to NSAIDs (non-steroidal anti-inflammatory drugs), especially gastrointestinal bleeding and perforation, which can be fatal (see also the warning about bleeding at the beginning of section 2).
Adolescents
There is a risk of kidney failure in dehydrated adolescents.
Other medicines and Difenadol
Tell your doctor or pharmacist that you are using or have recently used or may need to use any other medicine.
Difenadol may affect or be affected by other medicines. For example:
Difenadol may reduce the effect of medicines used to increase urine production (diuretics) and lower blood pressure (antihypertensive medicines, e.g., ACE inhibitors, beta-blockers, and angiotensin II receptor antagonists). The combined administration of ibuprofen and potassium-sparing diuretics (medicines used to increase urine elimination) may lead to an increase in potassium levels in the blood.
Other medicines may also affect or be affected by treatment with ibuprofen. Therefore, you should always consult your doctor or pharmacist before using ibuprofen with other medicines.
Taking Difenadol with alcohol
The adverse reactions of ibuprofen may be increased with the consumption of alcohol, especially those affecting the central nervous system and the gastrointestinal tract. You should not drink alcohol while taking ibuprofen.
Pregnancy, breastfeeding, and fertility
If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Pregnancy
Do not take this medicine during the last 3 months of pregnancy, as it may harm the fetus or cause problems during delivery. It may cause kidney and heart problems for your fetus. It may affect your and your baby's tendency to bleed and delay or prolong labor more than expected.
Do not take this medicine during the first 6 months of pregnancy unless clearly necessary and as indicated by your doctor.
If you need treatment during this period or while trying to become pregnant, you should take the minimum dose for the shortest possible time. From the 20th week of pregnancy, if you take this medicine for more than a few days, it may cause kidney problems for your fetus, which may lead to low levels of the fluid surrounding the baby (oligohydramnios) or narrowing of a blood vessel (ductus arteriosus) in the baby's heart. If you need treatment during a period longer than a few days, your doctor may recommend additional checks.
Breastfeeding
Small amounts of ibuprofen pass into breast milk. However, as no harmful effects have been reported in children to date, it is not usually necessary to interrupt breastfeeding during short-term use of ibuprofen at the recommended dose for fever and pain.
Fertility
This product belongs to the group of NSAIDs that may affect fertility in women. This effect is reversible upon discontinuation of the medication. You should consult your doctor if you plan to become pregnant or if you have difficulty becoming pregnant.
Driving and using machines
Ibuprofen generally has a negligible influence on the ability to drive and use machines. However, at higher doses, adverse effects such as fatigue and dizziness may occur, and the ability to react may be affected while driving and operating machines. This is especially important when the medicine is combined with alcohol.
Difenadol contains sodium
This medicine contains less than 1 mmol of sodium (23 mg) per tablet; it is essentially "sodium-free".
Follow the administration instructions for this medication exactly as indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.
The lowest effective dose should be used for the shortest time necessary to relieve symptoms. If you have an infection, consult a doctor without delay if symptoms (such as fever and pain) persist or worsen (see section 2).
The usual dose is:
Adults and adolescents from 40 kg in weight (from 12 years or older)
One tablet (400 mg) as a single dose.
The dosing interval should be chosen according to the observed symptoms and the recommended maximum daily dose. The interval between doses should not be less than 6 hours. Do not take more than 3 tablets (1200 mg) of ibuprofen in a 24-hour period.
This medication is not recommended for use in adolescents under 40 kg in weight or children under 12 years of age.
Adverse reactions can be minimized by using the lowest effective dose for the shortest possible time to control symptoms.
If you have severe liver or kidney disease or are an elderly patient, your doctor will indicate the correct dose to take, which will be the lowest possible dose.
Method of administration
Oral route.
Take the tablet with a glass of water.
Ibuprofen tablets should be swallowed whole, without chewing, crushing, or sucking to avoid discomfort in the mouth or throat irritation.
It is recommended that patients with sensitive stomachs take ibuprofen with food. Difenadol is intended for short-term use only.
For adults
If you need this medication for more than 3 days to treat fever or for more than 4 days to treat pain, or if symptoms worsen, you should consult a doctor.
For adolescents
If adolescents need this medication for more than 3 days, or if symptoms worsen, they should consult a doctor.
If you take more Difenadol than you should
If you have taken more ibuprofen than you should, or if a child has accidentally ingested the medication, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medication and the amount ingested, or go to the nearest hospital to find out about the risk and ask for advice on the measures to be taken.
Symptoms of overdose may include nausea, stomach pain, vomiting (which may contain bloody sputum), gastrointestinal bleeding (see also section 4 below), diarrhea, headache, ringing in the ears, confusion, and involuntary eye movements.
Additionally, it could cause blurred vision and worsening of asthma in asthmatics.
Nervousness, drowsiness, disorientation, or coma may also occur. Occasionally, patients develop seizures.
At high doses, symptoms of drowsiness, excitement, disorientation, chest pain, palpitations, loss of consciousness, seizures (mainly in children), weakness, and dizziness, blood in the urine, low potassium levels in the blood, low blood pressure, increased prothrombin time/INR, probably due to interference with the action of circulating coagulation factors, acute kidney failure, liver damage, respiratory failure, cyanosis, decreased body temperature, respiratory problems with decreased breathing, and chills have been reported.
If you forget to take Difenadol
Do not take a double dose to make up for forgotten doses.
If you have any other questions about the use of this medication, ask your doctor or pharmacist.
Like all medications, this medication can cause side effects, although not everyone gets them.
The most common side effects observed affect the digestive tract. Stomach/duodenal ulcers (peptic ulcers), perforation, or bleeding may occur, sometimes fatally, especially in elderly patients (see section 2: "Warnings and precautions"). Nausea, vomiting, diarrhea, flatulence, constipation, digestive problems, abdominal pain, blood in stools, vomiting blood, and ulcers (stomatitis) in the mouth and throat area may occur. Exacerbation of colitis and Crohn's disease (see section 2: "Warnings and precautions") has been reported after its use. Gastritis has been observed less frequently. In particular, the risk of developing gastrointestinal bleeding depends on the dose level and treatment duration.
Edema (swelling), high blood pressure, and heart failure have been observed in association with NSAID treatments.
More serious side effects
These may manifest as:
If you have any of these side effects or if they worsen, stop treatment and go to your doctor immediately.
Other side effects
Frequent (may affect more than 1 in 10 people)
Uncommon (may affect up to 1 in 100 people)
Stop taking ibuprofen and inform your doctor immediately.
Rare (may affect up to 1 in 1,000 people)
Very rare (may affect up to 1 in 10,000 people)
Frequency not known (cannot be estimated from available data)
Medications like ibuprofen may be associated with a small increased risk of suffering a heart attack ("myocardial infarction") or stroke.
Reporting of side effects
If you experience any side effects, consult your doctor or pharmacist, even if it is a possible side effect not listed in this leaflet. You can also report them directly through the Spanish Medicines and Health Products Agency's (AEMPS) website: www.notificaram.es. By reporting side effects, you can contribute to providing more information on the safety of this medication.
Keep this medication out of sight and reach of children.
Do not use this medication after the expiration date shown on the box after CAD. The expiration date is the last day of the month indicated.
This medication does not require special storage conditions.
Medications should not be disposed of through wastewater or household waste. Deposit the packaging and unused medications at the pharmacy's SIGRE point. If in doubt, ask your pharmacist how to dispose of the packaging and unused medications. This way, you will help protect the environment.
Composition of Difenadol
The active ingredient is ibuprofen. Each tablet contains 400 mg of ibuprofen.
The other ingredients are:
Core of the tablet:microcrystalline cellulose, calcium phosphate, sodium croscarmellose, hypromellose, povidone, stearic acid, talc.
Coating:hypromellose, titanium dioxide (E-171), macrogol, and talc.
Appearance of the product and package contents
White or almost white film-coated tablets, oblong, and biconvex, engraved with "I400" on one side and smooth on the other, with a diameter of 14.4 mm x 7.2 mm ± 10%.
Each package contains 12 or 20 film-coated tablets in aluminum-PVC blisters.
Marketing authorization holder and manufacturer
Laboratorios Normon, S.A.
Ronda de Valdecarrizo, 6
28760 Tres Cantos – Madrid (Spain)
Date of the last revision of this leaflet:January 2025
Detailed and updated information on this medication is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The best alternatives with the same active ingredient and therapeutic effect.
Discuss dosage, side effects, interactions, contraindications, and prescription renewal for DIFENADOL 400 mg FILM-COATED TABLETS – subject to medical assessment and local rules.