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Nuedexta
dextromethorphan hydrobromide, quinidine sulfate

Package leaflet: information for the user


NUEDEXTA 15 mg/9 mg hard capsules NUEDEXTA 23 mg/9 mg hard capsules dextromethorphan / quinidine


Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.

listed in this leaflet.


What is in this leaflet

  1. What NUEDEXTA is and what it is used for

  2. What you need to know before you take NUEDEXTA

  3. How to take NUEDEXTA

  4. Possible side effects

  5. How to store NUEDEXTA

  6. Contents of the pack and other information


  1. What NUEDEXTA is and what it is used for NUEDEXTA is a combination of two active substances:

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    • Dextromethorphan acts on the brain.

    • Quinidine increases the amount of dextromethorphan in your body, by blocking the breakdown of dextromethorphan by the liver.


      NUEDEXTA is used for the treatment of pseudobulbar affect (PBA) in adults. PBA is a neurological condition characterized by involuntary and uncontrollable episodes of laughing and/or crying, which don’t match your emotional state or mood.


      NUEDEXTA can help reduce how often you have episodes of PBA.

  2. What you need to know before you take NUEDEXTA Do not take NUEDEXTA

    • if you are allergic to dextromethorphan, quinidine or any of the other ingredients of this medicine (listed in section 6).

    • if you have a history of low levels of blood cells caused by quinidine, quinine or mefloquine (this can cause a tendency to bleed or bruise more easily than normal)

    • if you have a history of a liver disease (hepatitis) caused by quinidine

    • if you have a history of a condition called lupus-like syndrome caused by quinidine (this can cause joint pains, skin rash, excessive skin sensitivity to sun and overall feeling of sickness).

    • if you are already taking medicines containing quinidine, quinine, or mefloquine. These are medicines used to treat malaria or heart rhythm problems.

    • if you have a heart problem called “complete heart block” or “long QT syndrome” or have had a problem with your heart called “torsades de pointes”.

    • if you take a medicine called thioridazine, which is used for mental illness but can also affect the heart.

    • if you are taking, or have taken during the last two weeks, certain medicines for depression called monoamine oxidase inhibitors (MAOIs), such as phenelzine and moclobemide.

      Please ask your doctor if you are not sure, if any of the above applies to you.


      Warnings and precautions


      TalktoyourdoctorbeforeandaftertakingNUEDEXTAif:

    • you or a family member currently have or have ever had any heart disease or problems. This medicine may cause changes in heart rhythm. If you have certain heart problems or are currently taking certain other medicines, NUEDEXTA may not be appropriate for you, or your doctor

      may want to monitor your heart activity when you start NUEDEXTA.

    • you experience symptoms such as palpitations or fainting, which may be a sign of heart problems.

    • you develop symptoms of an allergic reaction such as swelling of the throat or tongue, difficulty breathing, dizziness, fever, rash, or hives after taking this medicine.

    • you experience symptoms such as bruising, bleeding under the skin, nosebleeds and/or bleeding gums, as this may be a sign of low levels of blood cells called platelets (thrombocytopenia).

    • you experience symptoms, such as yellowing of the skin or eyes, dark urine, nausea or vomiting, loss of appetite, abdominal pain, and fever, as this may be a sign of drug-induced

      hepatitis (liver inflammation).

    • you have a condition called myasthenia gravis (an autoimmune neuromuscular disease that causes muscle weakness and fatigability).

    • you have problems with your liver or kidney. Depending on the severity of your problems, your doctor may carefully consider whether this medicine is suitable for you and monitor you more closely for potential side effects.

    • you have a tendency to have falls. This medicine may cause dizziness and your doctor might need to discuss appropriate precautions to reduce the risk of falls.

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    • you have had at any time a serious condition called “serotonin syndrome”, which can be caused by certain medicines e.g. antidepressants. Symptoms of serotonin syndrome include agitation, high blood pressure, restlessness, muscle spasms and twitching, high body temperature,

      excessive sweating, shivering, and tremor.

    • you have a history of drug abuse. Your doctor will monitor you closely for signs of NUEDEXTA misuse or abuse.


      Stop taking NUEDEXTA and seek medical attention immediately if any of the above symptoms occur.


      Children and adolescents

      NUEDEXTA should not be used in children and adolescents below the age of 18 years.


      Other medicines and NUEDEXTA

      Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.


      It isveryimportanttotellyourdoctorifyouaretakinganyofthemedicineslistedbelow,asthese medicinesshouldneverbetakenwhileyouaretakingNUEDEXTA:

    • medicines containing quinidine, quinine, or mefloquine. These are medicines used to treat malaria or heart rhythm problems,

    • thioridazine, a medicine used in the treatment of schizophrenia and psychosis, that may affect the heart,

    • certain medicines for depression, called monoamine oxidase inhibitors (MAOIs- for example phenelzine and moklobemide). Do not take NUEDEXTA if you have taken these

      antidepressants during the last two weeks and allow at least 14 days after stopping NUEDEXTA before starting an MAOI.

      Pleasetellyourdoctorifyouaretakinganyofthefollowingmedicines,asyourdoctorwillclosely monitoryouforside effects.:

    • medicines used to treat fungal infections, such as ketoconazole, itraconazole, fluconazole

    • medicines used to treat HIV infection and AIDS, such as atazanavir, indinavir, nelfinavir, ritonavir, saquinavir, amprenavir, fosamprenavir

    • medicines used to treat bacterial infections, including tuberculosis, containing clarithromycin, telithromycin, erythromycin and rifampicin

    • medicines used to treat various heart conditions, such as diltiazem, verapamil, digoxin, flecainide and beta-blockers (such as metoprolol)

    • medicines used to prevent nausea and vomiting during chemotherapy and after surgery, such as aprepitant

    • certain medicines used to treat depression, including nortriptyline, desipramine, paroxetine imipramine and amitriptyline, nefazodone

    • St John's wort, a herbal medicine used to treat depression

    • medicines used to treat schizophrenia and other psychotic disorders, such as haloperidol, perphenazine, aripiprazole and chlorpromazine

    • certain medicines used to prevent blood clots in patients with heart conditions and at risk of stroke, such as ticagrelor and dabigatran-etexilate

    • tamoxifen, used to treat or prevent some cancers

    • atomoxetine, used to treat attention-deficit hyperactivity disorder (ADHD)

    • medicines to reduce pain and/or cough, such as codeine and hydrocodone

    • medicines to treat epilepsy or fits, such as phenytoin, carbamazepine and phenobarbital


      Your doctor will closely monitor you for side effects and/or may need to adjust the dose of the other medicine or NUEDEXTA.


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      NUEDEXTA with food, drink and alcohol

      You should not drink grapefruit juice or eat grapefruits while you are taking NUEDEXTA as this can increase the likelihood of serious side effects.


      Take care if you consume alcohol while you are taking NUEDEXTA as might increase the risk of side effects such as dizziness and sleepiness.


      Pregnancy and breast-feeding

      If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, or if

      you are not using reliable contraception, ask your doctor for advice before taking this medicine.

      As NUEDEXTA may cause harm to your unborn baby, its use is not recommended when you are pregnant or if you are a women of childbearing potential not using contraception. Your doctor will discuss with you the risks and benefits of using this medicine in these situations.


      It is not known whether the active substances of NUEDEXTA are expressed into human milk. Your doctor will decide if you should take this medicine while breast-feeding.


      Driving and using machines

      NUEDEXTA may cause dizziness. If this happens to you, do not drive or use machines.


      NUEDEXTA contains lactose

      If you have been told by your doctor that you have intolerance to some sugars, contact your doctor

      before taking this medicine.


  3. How to take NUEDEXTA


    Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.

    Startoftreatment(first4weeks):

    Your doctor will start your treatment with NUEDEXTA 15 mg/9 mg capsules which should be taken by you as follows:

    • For the first seven days of treatment: one capsule per day, taken in the morning.

    • From the eighth day of treatment onwards: two capsules per day, one in the morning and one in the evening, 12 hours apart.


      After4weeks:

      Your doctor will assess you carefully. Depending on your response to the treatment, your doctor may either decide:

    • to continue the treatment with NUEDEXTA 15 mg/9 mg capsules, or

    • to give you a higher dose and to prescribe NUEDEXTA 23 mg/9 mg capsules to you.


      Regardless of which strength of NUEDEXTA has been prescribed to you:

    • continue the treatment with: two capsules per day (one capsule every 12 hours).


      Useinolderpersons

      No special dose adjustment of NUEDEXTA is required in older patients.


      HowtotakeNUEDEXTA

      The capsule should be taken orally (by mouth) either with or without food at about the same time each day. When taking two capsules within 24 hours, you should leave about 12 hours between doses.


      If you take more NUEDEXTA than you should

      If you have taken more capsules than you should, speak to your doctor immediately.

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      Adverse reactions observed with this medicine may occur more often or may worsen and your doctor may perform some test and monitor you more closely.


      Symptoms of dextromethorphan overdose include nausea, vomiting, stupor, coma, respiratory depression, seizures, increased heart rate, hyperexcitability, and toxic psychosis. Other effects include loss of coordinated movement (ataxia), involuntary eye movements (nystagmus), over contraction of the muscles (dystonia), blurred vision, and changes in muscle reflexes. Dextromethorphan may increase the risk of serotonin syndrome (see Warnings and precautions and Possible side effects).


      Symptoms of quinidine overdose include irregular heartbeat and low blood pressure, and may also include vomiting, diarrhoea, ringing in the ears, high-frequency hearing loss, vertigo, blurred vision, double vision, increased sensitivity of the eyes to light, headache, confusion, and delirium (characterised by loss of attention, poor memory, disorientation, impaired speech).


      If you forget to take NUEDEXTA

      If you forget to take 1 or more capsules, you must not take a double dose to make up for the missed doses. Take your next dose at the usual time and make sure that approximately 12 hours passes

      between two doses.


      If you stop taking NUEDEXTA

      Do not stop taking this medicine without speaking to your doctor first, even if you begin to feel better. Stopping treatment may cause your symptoms to return.


      If you have any further questions on the use of this medicine, ask your doctor or pharmacist.


  4. Possible side effects


    Like all medicines, this medicine can cause side effects, although not everybody gets them. Most side effects are mild to moderate. However, some side effects may be serious and require treatment.

    Tell your doctor immediately if you experience severe symptoms including agitation, high blood pressure, restlessness, muscle spasms and twitching, high body temperature, excessive sweating, shivering, and tremor. These may be a sign of a serious condition called “serotonin syndrome”.


    Tell your doctor immediately if you notice any of the following:

    • excessive muscle stiffness (spasticity)

    • excessively slow or shallow breathing (respiratory depression) and/or turning blue.


      The most commonly reported side effects are gastrointestinal disorders (such as diarrhoea, nausea), nervous system disorders (such as dizziness, headache, somnolence) and fatigue.


      If any of the above occur, stop taking the capsules and tell your doctor immediately


      A list of all other side effects is provided below:


      Common side effects

      (may affect up to 1 in 10 people)

    • diarrhoea, nausea

    • dizziness, headache, drowsiness

    • fatigue


      Uncommon side effects

      (may affect up to 1 in 100 people)

    • decreased appetite

    • anxiety

    • distorted sense of taste (dysgeusia), sleepiness (hypersomnia), muscle spasticity, fainting (syncope), fall

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    • travel or motion sickness, ringing in the ears (tinnitus)

    • heart problems, such as slow, fast or irregular heart beat, or altered results during an electrocardiogram (ECG – QT prolongation)

    • abdominal pain, constipation, dry mouth, wind (flatulence), stomach discomfort, vomiting

    • increased liver enzymes (GGT, AST, ALT)

    • rash

    • muscle spasms

    • weakness (asthenia), irritability


      Rare

      (may affect up to 1 in 1,000 people)

    • loss of appetite (anorexia)

    • teeth grinding (bruxism), confusion, depressed mood, depression, disorientation (e.g. difficulty sensing time, direction, and recognition of people and places), early morning awakening, reduced emotional expressiveness (flat affect), hallucination, impulsive behaviour, indifference, insomnia, restlessness, disturbed sleep

    • balance disorder, abnormal coordination, speech difficulties (dysarthria), movement dysfunction, pins and needles / tingling or numbness (paraesthesia), loss of feeling or function in the lower limbs (paraparesis), sedation

    • double vision, blurred vision

    • heart attack (myocardial infarction), heart palpitations

    • nose bleeds, throat pain, excessively slow or shallow breathing (respiratory depression), runny nose, yawning

    • abnormal faeces, indigestion, inflammation of the lining of the stomach (gastritis), numbness and abnormal sensation in the mouth, rectal pain, dry tongue

    • gall stones, increased bilirubin levels in the blood, abnormal liver function test

    • redness of the skin (erythema), excessive sweating (hyperhidrosis), loss of sensation or numbness of the face, night sweats

    • musculoskeletal stiffness, muscle pain (myalgia), neck pain, pain in the limbs

    • abnormally frequent daytime urination

    • sexual dysfunction

    • chest discomfort, chest pain, chills, feeling hot, gait disturbance (difficulty walking), flu-like illness, fever, decreased oxygen levels in the blood

    • bone fractures (skeletal injury)


      Reporting of side effects

      If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the national reporting system listed in AppendixV. By reporting side effects you can help provide more information on the safety of this medicine.


  5. How to store NUEDEXTA


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


    Do not use this medicine after the expiry date which is stated on the bottle, blister and carton after EXP. The expiry date refers to the last day of that month.


    This medicinal product does not require any special storage conditions.


    Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.


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  6. Contents of the pack and other information What NUEDEXTA contains

Marketing Authorisation Holder and Manufacturer

Jenson Pharmaceutical Services Limited Carradine House, 237 Regents Park Road N3 3LF London

United Kingdom


This leaflet was last revised in {MM/YYYY}



Medicinal product no longer authorised