


Ask a doctor about a prescription for BESITRAN 20 mg/ml ORAL SOLUTION CONCENTRATE
Package Leaflet: Information for the User
Besitran 20mg/ml oral solution concentrate
Sertraline
Read the entire package leaflet carefully before starting to take this medication, as it contains important information for you.
Contents of the Package Leaflet
Besitran contains sertraline as the active ingredient. Sertraline belongs to the group of medications called Selective Serotonin Reuptake Inhibitors (SSRIs); these medications are used to treat depression and/or anxiety disorders.
Besitrancan be used to treat:
Depression is a clinical illness with symptoms such as feelings of sadness, inability to sleep well, or inability to enjoy life as you used to.
Obsessive-compulsive disorder and anxiety disorders are anxiety-related illnesses with symptoms such as being constantly worried about recurring ideas (obsessions) that lead to repetitive rituals (compulsions).
Post-traumatic stress disorder is a disorder that can occur after a highly traumatic emotional experience, and has some symptoms similar to depression and anxiety. Social anxiety disorder (social phobia) is an anxiety-related illness. It is characterized by intense anxiety or distress in social situations (e.g., talking to strangers, public speaking, eating or drinking in front of others, or worrying about behaving in a shameful manner).
Your doctor has considered that this medication is suitable for treating your illness.
If you are not sure why you have been prescribed Besitran, you should consult your doctor.
Do not take Besitran:
Warnings and precautions
Consult your doctor or pharmacist before starting to take Besitran.
Medicines are not always suitable for everyone. Before starting treatment with Besitran, tell your doctor if you have or have had any of the following circumstances:
Restlessness/Akathisia:
The use of sertraline has been associated with unpleasant restlessness and a need to move, often accompanied by an inability to remain seated or standing (akathisia). This occurs more often during the first few weeks of treatment. An increase in dose may be harmful, so if you develop these symptoms, you should contact your doctor.
Withdrawal symptoms:
Side effects related to stopping treatment (withdrawal symptoms) are common, particularly if treatment is stopped abruptly (see section 3. If you stop taking Besitran and section 4. Possible side effects). The risk of experiencing withdrawal symptoms depends on the duration of treatment, dose, and rate at which the dose is reduced. Generally, these symptoms are mild or moderate. However, in some patients, they can be severe. These symptoms usually occur during the first few days after stopping treatment. In general, these symptoms usually resolve on their own and normally disappear within two weeks. In some patients, they can last longer (2-3 months or more). It is recommended that when stopping treatment with sertraline, the dose should be gradually reduced over a period of several weeks or even months, and you should always agree with your doctor on the best way to stop treatment.
Thoughts of suicide and worsening of your depression or anxiety disorder:
If you are depressed and/or have anxiety disorders, you may sometimes have thoughts of harming yourself or committing suicide. This can increase at the beginning of treatment with antidepressants, because all these medicines take time to work, which is usually a few weeks but can sometimes be longer.
This is more likely to happen to you:
If you have thoughts of harming yourself or committing suicide at any time, contact your doctor or go to the hospital immediately.
It may be helpful for you to explain to a family member or close friend that you are depressed or have an anxiety disorder and ask them to read this leaflet. You can also ask them to tell you if they think your depression or anxiety is getting worse, or if they are concerned about changes in your behavior.
Sexual problems
Some medicines in the group to which Besitran belongs (called SSRIs) may cause symptoms of sexual dysfunction (see section 4). In some cases, these symptoms persist after stopping treatment.
Children and adolescents
Normally, sertraline should not be used in the treatment of children and adolescents under 18 years of age, except in the case of patients with obsessive-compulsive disorder (OCD). Patients under 18 years of age have a higher risk of adverse effects such as suicidal attempts, thoughts of self-harm or suicide (suicidal ideas), and hostility (predominantly aggression, confrontational behavior, and anger) when they are being treated with this class of medicines. Nevertheless, it is possible that your doctor may decide to prescribe Besitran to a patient under 18 years of age if they consider it to be in the patient's best interest. If your doctor has prescribed Besitran and you are under 18 years of age and wish to discuss this decision, please go back to your doctor. You must inform your doctor if any of the symptoms mentioned above appear or worsen when you are taking Besitran. The long-term effects on safety and related to growth, maturity, and learning (cognitive development) and behavioral development of Besitran were evaluated in a long-term study in over 900 children aged 6 to 16 years who were monitored for a period of 3 years. In general, the results of the study showed that children treated with sertraline developed normally, except for a slight increase in weight in those treated with a higher dose.
Besitran concentrated oral solution contains alcohol (ethanol) and may affect young children (see "Besitran contains alcohol (ethanol)").
Other medicines and Besitran
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
Some medicines may affect how Besitran works, or Besitran may reduce the effectiveness of other medicines that you are taking at the same time.
Taking Besitran with the following medicines may cause serious side effects:
Tell your doctor if you are taking the following medicines:
Taking Besitran with food, drinks, and alcohol
Besitran concentrated oral solution can be taken with or without food.
You should avoid drinking alcohol while being treated with Besitran.
You should not take sertraline in combination with grapefruit juice, as it may increase the levels of sertraline in your body.
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.
The safety of sertraline in pregnant women has not been fully established. If you are pregnant, sertraline will only be given to you if your doctor considers that the benefit to you outweighs any possible risk to the developing baby.
If you use Besitran in the final stages of pregnancy, there may be an increased risk of heavy vaginal bleeding shortly after delivery, especially if you have a history of bleeding disorders. Your doctor or midwife should know that you are using Besitran so that they can advise you. When used during pregnancy, especially during the last 3 months, medicines like Besitran may increase the risk of a serious disease in babies called persistent pulmonary hypertension of the newborn (PPHN), which makes the baby breathe faster and have a bluish appearance. These symptoms usually start within the first 24 hours after birth. If this happens to your baby, contact your midwife and/or doctor immediately.
Besitran concentrated oral solution contains alcohol (ethanol). If you are pregnant, consult your doctor or pharmacist before taking this medicine.
Your newborn baby may have other illnesses, which usually appear within the first 24 hours after birth. The symptoms include:
If your baby has any of these symptoms at birth, or you are concerned about your baby's health, consult your doctor or midwife for advice.
There are indications that sertraline passes into breast milk. Therefore, sertraline can only be used in breastfeeding women if their doctor considers that the benefit outweighs any possible risk to the baby.
Besitran concentrated oral solution contains alcohol (ethanol). If you are breastfeeding, consult your doctor or pharmacist before taking this medicine.
In animal studies, it has been seen that some medicines like sertraline may reduce sperm quality. This could theoretically affect fertility; however, the impact on human fertility has not yet been determined.
Driving and using machines
Psychotropic medicines like sertraline may affect your ability to drive or use machines. Therefore, do not drive or operate heavy machinery until you know how this medicine affects your ability to perform these activities.
Besitran contains alcohol (ethanol)
It is unlikely that the amount of alcohol in this medicine will have an effect on adults and adolescents, and it is likely that its effect on children will not be significant. It may have some effects on young children, such as drowsiness.
If you have a history of alcoholism, consult your doctor or pharmacist before taking this medicine.
The amount of alcohol in this medicine may alter the effects of other medicines. Consult your doctor or pharmacist if you are taking other medicines.
Besitran contains glycerol
At high doses, it may cause headache, stomach upset, and diarrhea.
The packaging of this medicine contains latex. It may cause severe allergic reactions.
Follow your doctor's or pharmacist's administration instructions for this medication exactly. If in doubt, consult your doctor or pharmacist again.
The recommended dose is:
Adults:
Depression and Obsessive-Compulsive Disorder:
For depression and OCD, the usual effective dose is 50 mg (2.5 ml) per day. The daily dose may be increased in increments of 50 mg (2.5 ml) at intervals of at least one week, and so on for several weeks. The maximum recommended dose is 200 mg (10 ml) per day.
Anxiety Disorder, Social Anxiety Disorder, and Post-Traumatic Stress Disorder:
For anxiety disorder, social anxiety disorder, and post-traumatic stress disorder, treatment should be started with a dose of 25 mg (1.25 ml) per day, and increased to 50 mg (2.5 ml) per day after one week.
The daily dose may be increased in increments of 50 mg (2.5 ml) over a period of several weeks. The maximum recommended dose is 200 mg (10 ml) per day.
Use in Children and Adolescents:
Besitran should only be used to treat children and adolescents aged 6 to 17 years who have OCD.
Obsessive-Compulsive Disorder:
Children aged 6 to 12 years:The recommended starting dose is 25 mg (1.25 ml) per day. After one week, your doctor may increase the dose to 50 mg (2.5 ml) per day. The maximum dose is 200 mg (10 ml) per day.
Adolescents aged 13 to 17 years:The recommended starting dose is 50 mg (2.5 ml) per day. The maximum dose is 200 mg (10 ml) per day.
If you have liver or kidney problems, inform your doctor and follow the instructions they give you.
Method of administration:
Besitran oral solution concentrate can be taken with or without food.
Take your medication once a day, either in the morning or at night.
Your doctor will indicate the duration of treatment with this medication. The duration will depend on the nature of your illness and your response to treatment. It will take several weeks for your symptoms to start improving. Treatment of depression usually needs to continue for 6 months after improvement.
Instructions for Taking Besitran Correctly:
The oral solution concentrate should always be diluted before taking. Never drink the concentrate undiluted.
The first time you open the oral concentrate bottle, you must put the dropper in the bottle as follows:
Dose Measurement:
Use the dropper to measure the dose prescribed by your doctor.
Mix the measured dose with 120 ml (a glass) of liquid, which can be water, ginger ale, lemon/lime soda, lemonade, or orange juice.
Do not mix the concentrated liquid with any other liquid except those mentioned above. The mixture should be taken immediately after preparation. The mixture may be slightly cloudy, but this is normal.
If You Take More Besitran Than You Should
If you accidentally take an excess of Besitran, contact your doctor or go to the emergency department of the nearest hospital. Always carry the medication package with you, whether there is medication left in it or not.
You can also call the Toxicology Information Service, phone 91 562 04 20, indicating the medication and the amount ingested.
Overdose symptoms may include drowsiness, nausea, and vomiting, rapid heart rate, tremors, agitation, dizziness, and rarely, loss of consciousness.
If You Forget to Take Besitran
Do not take a double dose to make up for forgotten doses. If you forget to take a dose, do not take it when you remember. Take the next dose when it is due.
If You Interrupt Treatment with Besitran
Do not interrupt treatment with Besitran unless your doctor tells you to. Your doctor will want to gradually reduce the dose of Besitran over several weeks before you stop taking this medication altogether. If you stop treatment abruptly, you may experience side effects such as dizziness, numbness, sleep disturbances, agitation or anxiety, headaches, nausea, vomiting, and tremors. If you experience any of these side effects, or any other during the interruption of your treatment with Besitran, please inform your doctor.
If you have any other doubts about the use of this medication, ask your doctor or pharmacist.
Like all medications, this medication can cause side effects, although not everyone will experience them.
The most common side effect is nausea. Side effects depend on the dose and often disappear or decrease as treatment continues.
Tell Your Doctor Immediately:
If you experience any of the following symptoms after taking this medication, as these symptoms can be serious.
The following side effects were observed in clinical trials in adults and after marketing.
Very common (may affect more than 1 in 10 patients):
Insomnia, dizziness, drowsiness, headache, diarrhea, feeling unwell, dry mouth, ejaculation problems, and fatigue.
Common (may affect up to 1 in 10 patients):
Uncommon (may affect up to 1 in 100 patients):
Rare (may affect up to 1 in 1,000 patients):
Frequency not known: cannot be estimated from available data:
*Side effects reported after marketing.
Other Side Effects in Children and Adolescents
In clinical trials in children and adolescents, side effects were generally similar to those reported in adults (see above). The most common side effects in children and adolescents were headache, insomnia, diarrhea, and nausea.
Symptoms that May Appear When Stopping Treatment
If you stop treatment with this medication abruptly, you may experience side effects such as dizziness, numbness, sleep disturbances, agitation or anxiety, headaches, nausea, vomiting, and tremors (see section 3. If You Interrupt Treatment with Besitran).
An increased risk of bone fractures has been observed in patients taking this type of medication.
Reporting Side Effects
If you experience any type of side effect, consult your doctor, pharmacist, or nurse, even if it is a possible side effect that does not appear in this leaflet. You can also report them directly through the Spanish Medication Surveillance System for Human Use: https://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 packaging after CAD. The expiration date is the last day of the month indicated.
Once the package is opened for the first time, it can be used for 28 days (4 weeks).
Do not store above 30°C.
Medications should not be thrown down the drain or into the trash. Deposit the packages and medications you no longer need in the SIGRE collection point at the pharmacy. If in doubt, ask your pharmacist how to dispose of packages and medications you no longer need. This will help protect the environment.
Besitran Composition
Product Appearance and Package Contents
Besitran oral solution concentrate is a clear, colorless solution that comes in a 60 ml amber glass bottle with a calibrated dropper.
Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder
Viatris Healthcare Limited
Damastown Industrial Park
Mulhuddart, Dublin 15
Dublin
Ireland
Manufacturer
Farmasierra Manufacturing S.L.
Carretera de Irún, Km. 26.200
28709 San Sebastián de los Reyes
Madrid, Spain
or
Mylan Hungary Kft.
Mylan utca 1
Komárom, 2900
Hungary
You can request more information about this medication from the local representative of the marketing authorization holder:
Viatris Pharmaceuticals, S.L.U.
C/ General Aranaz, 86
28027 Madrid
Spain
This medication is authorized in the Member States of the European Economic Area and in the United Kingdom (Northern Ireland) with the following names:
Austria | Tresleen |
Belgium, Luxembourg | Serlain |
Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Lithuania, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Sweden | Zoloft |
Ireland, United Kingdom (Northern Ireland) | Lustral |
Spain | Besitran |
Date of the Last Revision of this Leaflet:July 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 average price of BESITRAN 20 mg/ml ORAL SOLUTION CONCENTRATE in October, 2025 is around 4.67 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.
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