FENTICERTA 300 micrograms SUBLINGUAL TABLETS

2. What you need to know before taking Fenticerta

Do not take Fenticerta:

• if you are allergic to the active substance or to any of the other ingredients of this medication (listed in section 6),
• if you have severe breathing problems,
• if you are not regularly using a prescribed opioid medication (e.g., codeine, fentanyl, hydromorphone, morphine, oxycodone, meperidine) every day at the same time, for at least one week, to control your persistent pain. If you have not been using these medications, do not takefentanyl sublingual tablets, as their use may increase the risk of your breathing becoming slower and/or shallower, and even stopping,
• if you have short-term pain that is not breakthrough pain.

Warnings and precautions

Keep this medication in a safe and secure place, where others cannot access it (see section 5 "Storage of Fenticerta" for more information).

Consult your doctor or pharmacist or nurse before starting to take Fenticerta if you have or have had any of the following symptoms, as your doctor will need to take them into account when prescribing your dose:

• A head injury, as Fenticerta may mask the extent of the damage
• Breathing problems or severe myasthenia (a condition characterized by muscle weakness)
• If you have heart problems, especially low heart rate
• Low blood pressure
• Liver or kidney disease, as you may need your doctor to adjust the dose with more caution
• Brain tumor and/or increased intracranial pressure (increased pressure in the brain that causes severe headache, nausea, vomiting, and blurred vision)
• Mouth sores or mucositis (inflammation and redness of the inside of the mouth)
• If you are taking antidepressants or antipsychotics; see the section "Other medications and Fenticerta".
• If you have ever had adrenal insufficiency or a lack of sex hormones (androgen deficiency) with the use of opioids.

When taking fentanyl sublingual tablets, inform your doctor or dentist that you are taking this medication, if

• you are going to undergo surgery
• you feel pain or increased sensitivity to pain (hyperalgesia) that does not respond to a higher dose of the medication as prescribed by your doctor.
• you experience a combination of the following symptoms: nausea, vomiting, anorexia, fatigue, weakness, dizziness, and low blood pressure. Together, these symptoms can be an indication of a potentially life-threatening condition called adrenal insufficiency, in which the adrenal glands do not produce enough hormones.

Consult your doctor DURINGthe use of Fenticerta:

• if you experience sleep-related breathing disorders: Fenticerta may cause sleep-related breathing disorders such as sleep apnea (pauses in breathing during sleep) and sleep-related hypoxemia (low oxygen level in the blood). Symptoms may include pauses in breathing during sleep, nighttime awakenings due to difficulty breathing, difficulty staying asleep, or excessive daytime sleepiness. If you or someone else observes these symptoms, contact your doctor. Your doctor may consider reducing the dose.

Long-term use and tolerance

This medication contains fentanyl, an opioid. Repeated use of opioid pain relievers can make the medication less effective (the body gets used to it, which is known as pharmacological tolerance). You may also become more sensitive to pain when using Fenticerta. This is known as hyperalgesia. Increasing the dose of Fenticerta may continue to reduce pain for a while, but it can also be harmful. If you notice that the medication is losing its effectiveness, consult your doctor. Your doctor will decide whether it is best to increase the dose or gradually reduce the use of Fenticerta.

Dependence and addiction

The repeated use of Fenticerta can also lead to dependence, abuse, and addiction, which could result in a potentially fatal overdose. The risk of these side effects may be greater with a higher dose and longer use. Dependence or addiction can cause a feeling of lack of control over the amount of medication you need to use or how often you need to use it. You may feel the need to continue using the medication even if it does not help relieve pain.

The risk of dependence or addiction varies from person to person. The risk of becoming dependent on or addicted to Fenticerta may be greater if:

• you or a family member have abused alcohol or experienced dependence on it, prescription medications, or illegal drugs ("addiction").
• you smoke.
• you have had mood problems (depression, anxiety, or personality disorder) or have undergone psychiatric treatment for other mental illnesses.

If you notice any of the following symptoms while using Fenticerta, it could be a sign of dependence or addiction.

• you need to use the medication for a longer period than indicated by your doctor.
• you need to use a higher dose than recommended.
• you are using the medication for reasons other than those prescribed, for example, "to calm down" or "to help you sleep".
• you have made repeated attempts to stop using the medication or control its use, but have been unsuccessful.
• you feel unwell when you stop using the medication (e.g., nausea, vomiting, diarrhea, anxiety, chills, tremors, and sweating), and you feel better once you take it again ("withdrawal symptoms").

If you notice any of these signs, consult your doctor to determine the best treatment approach for you, when it is appropriate to stop the medication, and how to do it safely.

If you interrupt treatment, you may experience withdrawal symptoms. Inform your doctor or nurse if you think this is happening to you (see also section 4. Possible side effects).

Use in athletes

This medication contains fentanyl, which can produce a positive result in doping tests.

Other medications and Fenticerta

Inform your doctor or pharmacist that you are using, have recently used, or may need to use any other medication (other than the opioid medications you regularly take for pain).

Some medications can increase or decrease the effects of Fenticerta. Consequently, if you start, change the dose, or stop treatment with the following medications, inform your doctor, as they may need to adjust your dose of fentanyl sublingual tablets:

• Certain types of antifungal medications containing substances such as ketoconazole or itraconazole (used to treat fungal infections)
• Certain types of antibiotic medications used to treat infections (called macrolides, containing substances such as erythromycin)
• Certain types of antiviral medications called protease inhibitors, which contain, for example, ritonavir (used to treat viral infections).
• Rifampicin or rifabutin (medications used to treat bacterial infections)
• Carbamazepine, phenytoin, or phenobarbital (medications used to treat seizures).
• Herbal medications containing St. John's Wort (Hypericum perforatum)
• Medications containing alcohol

• Medications called monoamine oxidase inhibitors (MAOIs), used to treat severe depression and Parkinson's disease. Inform your doctor if you have taken this type of medication in the last two weeks.
• Certain types of potent pain relievers, called partial agonist/antagonists, such as buprenorphine, nalbuphine, and pentazocine (medications for pain) and some medications for neuropathic pain (gabapentin and pregabalin). You may experience withdrawal symptoms (nausea, vomiting, diarrhea, anxiety, chills, tremors, and sweating) while using these medications.

Fenticerta can increase the effect of medications that make you feel drowsy, including:

• other powerful pain medications(opioid-type medications for pain and cough)
• general anesthetics (used to put you to sleep during operations)
• muscle relaxants
• sleeping pills
• medications used to treat
• • depression
  • allergies
  • anxiety and psychosis
• medications containing clonidine (used to treat high blood pressure)

The risk of side effects increases if you are taking medications such as certain antidepressants or antipsychotics. Fenticerta can interact with these medications, and you may experience changes in mental status (e.g., agitation, hallucinations, coma) and other effects such as body temperature above 38°C, increased heart rate, unstable blood pressure, and exaggerated reflexes, muscle stiffness, lack of coordination, and/or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea). Your doctor will tell you if Fenticerta is suitable for you.

Taking Fenticerta with food, drinks, and alcohol

Fenticerta can cause drowsiness in some people. Do not consume alcohol without consulting your doctor, as it may make you feel more drowsy than usual.

Do not drink grapefruit juice during treatment with Fenticerta, as it may increase the adverse effects of Fenticerta.

Pregnancy and breastfeeding

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

You should not take fentanyl during pregnancy unless your doctor has explicitly indicated it.

Fentanyl can pass into breast milk and cause side effects in the breastfed baby. Do not use Fenticerta if you are breastfeeding. You should not start breastfeeding until at least 5 days have passed since the last dose of fentanyl sublingual tablets.

Consult your doctor or pharmacist before using any medication during pregnancy or breastfeeding.

Driving and using machines

Fenticerta can impair your mental and/or physical ability to perform tasks that require attention, such as driving or operating machines.

If you feel dizzy, drowsy, or have blurred vision while taking Fenticerta, do not drive or operate machines.

3. How to take Fenticerta

Before starting treatment and regularly during treatment, your doctor will also explain what you can expect from using Fenticerta, when and for how long you should use it, when you should contact your doctor, and when you should stop using it (see also section 2).

Follow the instructions for administering this medication exactly as indicated by your doctor. If you are unsure, consult your doctor or pharmacist again.

YOU SHOULD ONLY USE THIS MEDICATION AS DIRECTED BY YOUR DOCTOR. DO NOT USE IT FOR ANY OTHER PERSON, AS IT COULD CAUSE SERIOUS RISKS TO THEIR HEALTH, ESPECIALLY IN CHILDREN.

Fenticerta is a different type of medication from other medications you may have used to treat breakthrough pain. YOU SHOULD ALWAYS TAKE THE DOSE OF FENTICERTA AS INDICATED BY YOUR DOCTOR;this may be a different dose from what you have used with other medications for breakthrough pain.

Starting treatment - Establishing the most suitable dose

For treatment with Fenticerta to be successful, your doctor will need to identify the most suitable dose for treating your breakthrough pain. Fenticerta is available in a wide range of doses. You may need to try different doses of Fenticerta during different episodes of pain before finding the most suitable dose. Your doctor will help you with this task and find the most suitable dose for you.

If you do not obtain adequate pain relief with a dose, your doctor may indicate that you should take an additional dose to treat a breakthrough pain episode. DO NOT TAKE A SECOND DOSE UNLESS YOUR DOCTOR INDICATES IT, as you may experience an overdose.

Your doctor may advise you to take a dose consisting of more than one tablet at the same time. DO THIS ONLY IF YOUR DOCTOR HAS INDICATED IT.

After taking the last dose, wait at least two hours before treating the next episode of breakthrough pain with Fenticerta.

Continuing treatment - Once the most suitable dose has been established

Once you and your doctor have established a dose of Fenticerta that controls your breakthrough pain, you should not take this dose more than four times a day. A DOSE OF FENTICERTA MAY CONSIST OF MORE THAN ONE TABLET.

After taking the last dose, wait at least two hours before treating the next episode of breakthrough pain with Fenticerta.

If you think that the dose of Fenticerta you are using does not control your breakthrough pain satisfactorily, inform your doctor, as you may need to have your dose adjusted.

DO NOT CHANGE YOUR DOSE OF FENTICERTA UNLESS YOUR DOCTOR INDICATES IT.

Taking the medication

Fenticerta should be used sublingually. This means that you should place the tablet under your tongue, where it will dissolve quickly to allow the active substance to be absorbed through the lining of your mouth. Once absorbed, it starts to act to relieve pain.

When you have an episode of breakthrough pain, take the dose indicated by your doctor as follows:

• If your mouth is dry, take a sip of water to moisten it. Spit or swallow the water.
• Remove the tablet(s) from the blister pack immediately before use as follows:
• • Separate one of the units from the blister pack by tearing along the perforation (keep the remaining units in the blister pack together).
  • Peel back the edge of the foil by the arrow and carefully remove the tablet. Do not attempt to push the Fenticerta sublingual tablets through the top foil, as this will damage the tablets.
• Place the tablet under your tongue as far back as possible, and let it dissolve completely.
• Fenticerta will dissolve quickly under your tongue and be absorbed to provide relief from your pain. It is therefore important that you do not suck, chew, or swallow the tablet.
• Do not drink or eat anything until the tablet has dissolved completely under your tongue.

If you take more Fenticerta than you should

• Remove any remaining tablets from your mouth
• Tell your caregiver or another person what has happened
• You should contact your doctor, pharmacist, or local hospital immediately and ask for actions to take
• While waiting for the doctor, keep the person awake by talking to them or shaking them occasionally

The symptoms of an overdose include:

• Extreme drowsiness
• Slow, shallow breathing

If this happens, seek medical help immediately.

An overdose can also cause a brain disorder known as toxic leukoencephalopathy.

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medication and the amount ingested.

If you stop treatment with Fenticerta

You should stop using Fenticerta when you no longer have breakthrough pain. However, you should continue taking your usual opioid medications for persistent cancer pain as recommended by your doctor. You may experience withdrawal symptoms similar to the possible side effects of Fenticerta. If you have withdrawal symptoms or are concerned about pain relief, consult your doctor, who will assess whether you need any medication to reduce or suppress withdrawal symptoms.

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

4. Possible Adverse Effects

Like all medicines, this medicine may cause adverse effects, although not all people suffer from them.

If you start to feel unusual or extreme drowsiness or your breathing becomes shallow and slow, you or your caregiver should contact your doctor or local hospital for emergency assistance (see also section 3 "If you take more Fenticerta than you should").

Very common adverse effects (may affect more than 1 in 10 people) include:

• nausea

Common adverse effects (may affect up to 1 in 10 people) include:

• dizziness, headache, excessive drowsiness
• shortness of breath/difficulty breathing
• inflammation inside the mouth, vomiting, constipation, dry mouth
• sweating, fatigue/tiredness/lack of energy

Uncommon adverse effects (may affect up to 1 in 100 people):

• allergic reaction, tremors/shaking, altered or blurred vision, slow or rapid heart rate, low blood pressure, memory loss
• depression, suspicious thoughts/groundless fears, feeling of confusion, disorientation, anxiety/unhappiness/restlessness, feeling unusually happy/healthy, mood changes
• feeling of permanent fullness, stomach pain, indigestion
• mouth ulcers, tongue problems, mouth or throat pain, throat tightness, lip or gum ulcers
• loss of appetite, loss or alteration of sense of smell/taste
• dullness/drowsiness, difficulty sleeping or sleep disturbances, attention/distraction problems, lack of energy/weakness/loss of strength
• skin changes, skin rash, itching, night sweats, decreased sensitivity to touch, ease of bruising
• joint pain or stiffness, muscle stiffness
• withdrawal syndrome (may manifest with the following adverse effects: nausea, vomiting, diarrhea, anxiety, chills, tremors, and sweating), accidental overdose, in men inability to achieve or maintain an erection, general malaise

Adverse effects of unknown frequency (cannot be estimated from available data):

• tongue swelling,
• severe respiratory problems,
• falls,
• flushing,
• feeling of excessive heat,
• diarrhea,
• seizure (epileptic fit),
• inflammation of arms or legs,
• seeing or hearing things that are not real (hallucinations),
• fever,
• pharmacological tolerance, drug dependence (addiction), drug abuse (see section 2),
• reduced or lost consciousness,
• itchy rash,

• delirium (symptoms may consist of a combination of agitation, restlessness, disorientation, confusion, fear, seeing or hearing things that do not really exist, sleep disturbances, nightmares).

Prolonged treatment with fentanyl during pregnancy may cause withdrawal symptoms in the newborn, which can be potentially fatal (see section 2).

Reporting of Adverse Effects

If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect that does not appear in this prospectus. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.

5. Conservation of Fenticerta

The pain relief of this medicine is very strong and can be extremely dangerous if a child takes it accidentally. Keep this medicine out of sight and reach of children.

Keep this medicine in a safe and protected place, inaccessible to other people. This medicine can cause serious harm and even be fatal for people who use it accidentally or intentionally when not prescribed to them.

It is recommended to keep Fenticerta in a closed or locked place.

Do not use this medicine after the expiration date shown on the blister pack after CAD/EXP. The expiration date is the last day of the month indicated.

No special storage conditions are required.

Medicines should not be disposed of through wastewater or household waste. Deposit the packaging and medicines you no longer need at the SIGRE Point in the pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medicines you no longer need. This way, you will help protect the environment.

6. Package Contents and Additional Information

Composition of Fenticerta

• The active ingredient is fentanyl. One sublingual tablet contains:
• 100 micrograms of fentanyl (as citrate).
• 200 micrograms of fentanyl (as citrate).
• 300 micrograms of fentanyl (as citrate).
• 400 micrograms of fentanyl (as citrate).
• 600 micrograms of fentanyl (as citrate).
• 800 micrograms of fentanyl (as citrate).
• The other components are mannitol (E421), silicified microcrystalline cellulose, sodium croscarmellose, and magnesium stearate.

Appearance of the Product and Package Contents

Fenticerta is a small white sublingual tablet that should be placed under the tongue. It comes in a wide range of doses and forms. Your doctor will prescribe the appropriate dose (form) and number of tablets for you.

The 100 microgram tablet is a circular white tablet.

The 200 microgram tablet is an oval white tablet.

The 300 microgram tablet is a triangular white tablet.

The 400 microgram tablet is a diamond-shaped white tablet.

The 600 microgram tablet is a "D"-shaped white tablet.

The 800 microgram tablet is a capsule-shaped white tablet.

The sublingual tablets are presented in child-resistant, perforated unit dose blisters (PA/AL/PVC//AL/PET) inserted in a cardboard box.

Fenticerta is available in packs of 10x1 or 30x1 tablets.

Only some pack sizes may be marketed.

Marketing Authorization Holder and Manufacturer

Marketing Authorization Holder

Sandoz Farmacéutica, S.A.

Centro Empresarial Parque Norte

Edificio Roble

C/ Serrano Galvache, 56

28033 Madrid, Spain

Manufacturer

Prasfarma S.L.

C/ Sant Joan 11-15

08560 Manlleu – Barcelona

Spain

or

KERN PHARMA, S.L.

Polígono Ind. Colón II

Venus, 72

08228 Terrassa – Barcelona

Spain

or

LEK PHARMACEUTICALS D.D.

Verovškova 57

1526 Ljubljana,

Slovenia

Date of the Last Revision of this Prospectus:April 2025

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