Label: information for the user

Entecavir Zentiva 1 mg film-coated tablets

Entecavir

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

• Keep this label, as you may need to read it again.
• If you have any doubts, consult your doctor or pharmacist.
• This medicine has been prescribed only for you, and you should not give it to others even if they have the same symptoms as you, as it may harm them.
• If you experience any adverse effects, consult your doctor or pharmacist, even if they are not listed in this label. See section 4.

1. What isEntecavirZentiva and for what it is used

2. What you need to know before starting to takeEntecavirZentiva

3. How to takeEntecavirZentiva

4. Possible adverse effects

5. Storage ofEntecavirZentiva

6. Contents of the package and additional information.

Entecavir is an antiviral medication used to treat chronic (long-term) infection by the hepatitis B virus (HBV) in adults.

Entecavir may be used in patients whose liver is damaged but still functioning properly (compensated liver disease) and in patients whose liver is damaged and not functioning properly (decompensated liver disease).

Entecavir is also used to treat chronic (long-term) infection by HBV in children and adolescents from 2 years to less than 18 years.

Entecavir may be used in children whose liver is damaged but still functioning properly (compensated liver disease).

Hepatitis B infection can damage the liver. Entecavir reduces the amount of virus in the body and improves liver condition.

Do not take Entecavir Zentiva

• if you are allergicto entecavir or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

Consult your doctor or pharmacist before starting to take entecavir

• if you have ever had problems with your kidneys, inform your doctor. This is important because entecavir is eliminated from the body through the kidneys and it may be necessary to adjust your dose or treatment schedule.

• do not stop taking entecavir without consulting your doctor,as your hepatitis may worsen if you interrupt treatment. When you stop taking entecavir, your doctor will continue to monitor you and perform blood tests for several months.

• ask your doctor if your liver is functioning properlyand if not, about the possible effects that your treatment with entecavir could have.

• if you are also infected with HIV(human immunodeficiency virus), make sure to inform your doctor. Do not take entecavir for the treatment of your hepatitis B infection unless you are also taking medications for the treatment of HIV infection, as otherwise, the effectiveness of future HIV treatments could be reduced. Entecavir will not control your HIV infection.

• taking Entecavir will not prevent you from infecting others with the hepatitis B virus (HBV)through sexual contact or bodily fluids (including blood contamination). Therefore, it is essential to take the necessary precautions to prevent others from becoming infected with HBV. There is a vaccine available to protect individuals at risk of HBV infection.

• Entecavir belongs to a class of medicines that can cause lactic acidosis(excess lactic acid in your blood) and liver enlargement. Symptoms such as nausea, vomiting, and abdominal pain may indicate the development of lactic acidosis. In some cases, this rare but serious side effect has been fatal. Lactic acidosis occurs more frequently in women, especially those who are overweight. Your doctor will monitor you periodically while you are taking this medicine.

• if you have received previous treatment for chronic hepatitis B, please inform your doctor.

Children and adolescents

Entecavir should not be used in children under 2 years of age or weighing less than 10 kg.

Entecavir Zentiva with other medicines

Inform your doctor or pharmacist if you are taking, have taken recently, or may need to take any other medicine.

Entecavir Zentiva with food and drinks

In most cases, you can take entecavir with or without food. However, if you have received previous treatment with another medicine containing lamivudine as the active ingredient, consider the following. If you have switched to entecavir because lamivudine treatment was unsuccessful, take entecavir on an empty stomach, once a day. If your liver disease is advanced, your doctor will also instruct you on taking entecavir on an empty stomach.

Empty stomach means at least 2 hours after and 2 hours before the next meal.

Children and adolescents (2 to less than 18 years of age) can take entecavir with or without

food.

Pregnancy, breastfeeding, and fertility

Inform your doctor if you are pregnant or intend to become pregnant. Entecavir use has not been proven to be safe during pregnancy. Do not use entecavir during pregnancy unless it is clearly necessary, according to your doctor. It is essential for women of childbearing age who are being treated with entecavir to use an effective contraceptive method to avoid becoming pregnant.

Do not breastfeed during treatment with entecavir. If you are breastfeeding, inform your doctor. It is unknown whether entecavir, the active ingredient of this medicine, is excreted in breast milk.

Driving and operating machinery

Dizziness, fatigue, and drowsiness are common side effects that may impair your ability to drive and operate machinery. If you have any doubts, consult your doctor.

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

Not all patients need to take the same dose of Entecavir.

Follow exactly the administration instructions of this medication indicated by your doctor. In case of doubt, consult your doctor or pharmacist again.

For adultsthe recommended dose is 0.5 mg or 1 mg once a day (oral administration).

Your dose will depend on:

• whether you have been previously treated for a hepatitis B infection, as well as the medication you have received.
• if you have kidney problems. Your doctor may prescribe a lower dose or indicate that you take it less frequently than once a day.
• your liver condition.

For children and adolescents(from 2 to less than 18 years of age), your pediatrician will decide on the appropriate dose based on the child's body weight.

For children and adolescents, a oral solution of entecavir or 0.5 mg tablets may be available.

Your doctor will decide on the correct dose based on your child's weight.

Always take the dose recommended by your doctor to ensure the medication is fully effective and to reduce the development of treatment resistance. Take Entecavir Zentiva for the entire time your doctor has indicated. Your doctor will tell you when to stop treatment.

Your doctor will advise you on the correct dose for you. Always take the dose recommended by your doctor to ensure the medication is fully effective and to reduce the development of treatment resistance. Take entecavir for the entire time your doctor has indicated. Your doctor will tell you when to stop treatment.

Some patients must take this medication on an empty stomach (see Entecavir tablets with food and drinksin theSection 2). If your doctor tells you to take this medication on an empty stomach, empty stomach means at least 2 hours after a meal and 2 hours before the next meal.

If you take more Entecavir Zentiva than you should

If you have taken more entecavir than you should, consult your doctor, pharmacist, or call the Toxicological Information Service, phone: 91 562 04 20, indicating the medication and the amount used.

If you forget to take Entecavir Zentiva

It is essential not to forget any dose. If you forget a dose of Entecavir, take it as soon as you remember and then take the next scheduled dose at the usual time. If it is almost time for your next dose, do not take the missed dose. Wait and take the next dose at the usual time. Do not take a double dose to compensate for the missed doses.

Do not interrupt treatment with Entecavir Zentiva without consulting your doctor

Some people develop severe hepatitis symptoms when they stop taking entecavir. Inform your doctor immediately of any changes in symptoms you observe after stopping treatment.

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

Likeallmedicines,thismedicinecancausesideeffects,althoughnoteveryonewillexperiencethem.

Patientswhohavebeentreatedwithentecavirhavereportedthefollowingsideeffects:

• Common(occurringinatleast1inevery100patients):headache,insomnia(inabilitytosleep),fatigue(extremefatigue),dizziness,drowsiness,vomiting,diarrhea,nausea,indigestion,andincreasedlevelsofliverenzymesinblood.
• Uncommon(occurringinatleast1inevery1,000patients):skineruption,hairloss.
• Rare(occurringinatleast1inevery10,000patients):severeallergicreaction.

Ifyouexperiencesideeffects,consultyourdoctororpharmacist,eveniftheydonotappearinthisleaflet.

Reportingofsideeffects

Ifyouexperienceanytypeofsideeffect,consultyourdoctororpharmacist,evenifitisapossiblesideeffectthatdoesnotappearinthisleaflet.YoucanalsoreportthemdirectlythroughtheSpanishSystemforPharmacovigilanceofMedicinesforHumanUse:https://www.notificaram.es. Byreportingsideeffects,youcancontributetoprovidingmoreinformationaboutthesafetyofthismedicine.

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

Do not use this medication after the expiration date that appears on the bottle, blister pack, or container after CAD.The expiration date is the last day of the month indicated.

Bottle: after the first opening of the container, the tablets must be used before 30 days.

This medication does not require special storage conditions.

Medications should not be thrown down the drain or in the trash. Dispose of the containers and medications you no longer need at the SIGRE collection point of the pharmacy.In case of doubt, ask your pharmacist how to dispose of the containers and medications you no longer need.By doing so, you will help protect the environment.

Composition of Entecavir

The active ingredient is entecavir.

Each film-coated tablet contains 1 mg of entecavir monohydrate equivalent to 1 mg of entecavir.

The other components are:

Core of the tablet: lactose monohydrate, microcrystalline cellulose, crospovidone (Type A), hydroxypropyl cellulose (type L) and magnesium stearate.

Mid-coating (pink): hypromellose, titanium dioxide (E171), polydextrose, talc, maltodextrin, medium-chain triglycerides, red iron oxide (E172), yellow iron oxide (E172).

Appearance of the product and contents of the package

The film-coated tablets are pink triangular tablets marked with “1” on one side, with medium dimensions of 10.6mm ± 0.2 mm and a thickness of 4.5mm ± 0.3 mm.

Entecavir Zentiva 1 mg tablets are supplied in boxes containing 30, 90 film-coated tablets (in OPA/ALU/PVC-Aluminum blisters) and in high-density polyethylene (HDPE) bottles with a child-resistant polypropylene closure and induction-sealed containing 30 film-coated tablets.

Only some package sizes may be marketed.

Holder of the marketing authorization and manufacturer responsible

Holder of the marketing authorization:

Zentiva k.s.,

U kabelovny 130,

Dolní Mecholupy,

102 37 Prague 10

Czech Republic

Manufacturer responsible

Pharmathen International S.A.

Industrial Park Sapes,

Rodopi Prefecture, Block No 5,

Rodopi 69300, Greece

Or

Pharmathen S.A.

Dervenakion 6

Pallini 15351

Attiki, Greece

Or

Aristo Pharma GmbH

Wallenroder Str. 8-10

D-13435 Berlin

Germany

You can request more information about this medication by contacting the local representative of the marketing authorization holder:

Zentiva Spain S.L.U.

Avenida de Europa, 19, Building 3, 1st floor.

28224 Pozuelo de Alarcón, Madrid

Spain

This medication is authorized in the member states of the European Economic Area with the following names:

Denmark:Entecavir Aristo 1 mg filmovertrukket tablet

United Kingdom:Entecavir Aristo 1 mg film-coated tablets

Germany:Entecavir Aristo 1 mg Filmtabletten

Italy:Entecavir Aristo 1 mg compressi rivestita con film

Spain:Entecavir Zentiva 1 mg comprimidos recubiertos con película EFG

Last review date of this leaflet: July 2017

The detailed and updated information about this medication is available on the website of theSpanish Agency of Medicines and Medical Devices (AEMPS)http://www.aemps.gob.es/