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SIRDALUD 4 mg Tablets

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Doctor
5.0(16)

Sergey Ilyasov

PsychiatryNeurology7 years of experience

Dr Sergey Ilyasov is an experienced neurologist and qualified psychiatrist who provides online consultations for adults and adolescents. Combining deep neurological expertise with a modern psychiatric approach, he ensures comprehensive diagnostics and effective treatment for a wide range of conditions affecting both physical and mental health.

Dr. Ilyasov helps patients in the following cases:

  • Chronic headaches (migraine, tension-type headache), back pain, neuropathic pain, dizziness, numbness in limbs, coordination disorders.
  • Anxiety disorders (panic attacks, generalized anxiety disorder), depression (including atypical and treatment-resistant forms), sleep disturbances (insomnia, hypersomnia, nightmares), stress, burnout.
  • Chronic pain syndromes and psychosomatic symptoms (e.g., irritable bowel syndrome related to stress, vegetative-vascular dystonia).
  • Behavioral disorders and concentration difficulties in adolescents (including ADHD, autism spectrum disorders), nervous tics.
  • Memory impairments, phobias, obsessive-compulsive disorder (OCD), emotional swings, and support for post-traumatic stress disorder (PTSD).

Thanks to his dual specialization in neurology and psychiatry, Dr Sergey Ilyasov offers integrated and evidence-based care for complex conditions requiring a multidisciplinary approach. His consultations focus on accurate diagnosis, development of an individualized treatment plan (including pharmacotherapy and psychotherapeutic methods), and long-term support adapted to each patient's unique needs.

Book an online consultation with Dr. Sergey Ilyasov to receive qualified assistance and improve your well-being today.

Book a video appointment
€106
This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use SIRDALUD 4 mg TABLETS

Contents of the leaflet

  1. Introduction
  2. What is Sirdalud and what is it used for
  3. What you need to know before you take Sirdalud
  4. How to take Sirdalud
  5. Possible side effects
  6. Storing Sirdalud
  7. Contents of the pack and further information

Introduction

Package Leaflet: Information for the User

Sirdalud 4 mg Tablets

Tizanidine

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

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the pack and other information

  1. What is Sirdalud and what is it used for
  2. What you need to know before you take Sirdalud
  3. How to take Sirdalud
  4. Possible side effects
  5. Storing Sirdalud
  6. Contents of the pack and further information

1. What is Sirdalud and what is it used for

Sirdalud belongs to a group of medicines called muscle relaxants (medicines used to relax muscles). It is indicated for the treatment of muscle problems associated with:

  • spinal problems, such as lumbago and torticollis
  • surgical interventions, such as herniated disc or inflammatory disease of the hip

chronic disease of the hip

  • neurological disorders such as multiple sclerosis (a disease that affects the coating of the central nerves), chronic myelopathy (lesion in the spinal cord), degenerative disorders of the spinal cord, cerebrovascular accidents (strokes or cerebral hemorrhages) or cerebral palsy.
Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

2. What you need to know before you take Sirdalud

Do not take Sirdalud

  • If you are allergic to the active substance or to any of the other ingredients of this medicine

(listed in section 6)

  • If you have severe liver disease
  • If you are taking medicines that contain fluvoxamine (used to treat depression) or ciprofloxacin (antibiotic to treat infections)

Warnings and precautions

Consult your doctor or pharmacist before starting to take this medicine, especially:

  • If you have any liver or kidney disease, as your doctor may need to adjust your dose of Sirdalud

If you are taking more than 3 tablets (12 mg of tizanidine) per day and feel nausea, fatigue, and have no appetite, you should inform your doctor as you may need to have periodic tests to check your liver function

  • If you are taking blood pressure medications at the same time, as Sirdalud may cause low blood pressure, especially when standing up or getting up

Sirdalud may cause serious symptoms due to low blood pressure, such as loss of consciousness and circulatory collapse (the volume of fluid circulating in the body is not sufficient to maintain normal metabolism)

  • If you are taking oral contraceptives at the same time, your doctor may need to adjust the dose of Sirdalud

If you are a smoker (more than 10 cigarettes per day)

  • If you are pregnant or plan to become pregnant, as Sirdalud may be harmful to the fetus.
  • Before starting treatment with Sirdalud, your doctor may ask you to have a pregnancy test to ensure you are not pregnant. During treatment with Sirdalud and at least until one day after stopping it, it is also recommended to use reliable methods to avoid pregnancy. Consult your doctor about the most suitable methods to use during this period.
  • Do not stop treatment abruptly, consult your doctor, as it may cause hypertension and tachycardia, especially if you are taking antihypertensives.
  • It may cause hypersensitivity reactions, see section 4.
  • It may cause visual disturbances and sedation, and may interfere with daily activities.

Taking Sirdalud with other medicines

Tell your doctor or pharmacist if you are using, have recently used, or might use any other medicines:

  • fluvoxamine (used to treat depression) is contraindicated
  • ciprofloxacin (antibiotic to treat infections) is contraindicated
  • antiarrhythmics (medicines to treat heart rhythm disorders)
  • cimetidine (medicines to treat duodenal or gastric ulcers)
  • cisapride (medicines to treat heartburn and esophageal reflux)
  • fluoroquinolones, acitromycin, and rifampicin (antibiotics used to treat certain infections)
  • rofecoxib (medicines used to relieve pain or inflammation),
  • oral contraceptives (medicines used to prevent unwanted pregnancies), as they may increase the effects of Sirdalud

Sirdalud may enhance the effects of:

  • antihypertensives (medicines for high blood pressure)
  • diuretics (medicines that increase urine production)
  • sedatives (medicines that reduce nervous excitement)
  • hypnotics (sleeping medicines)
  • antihistamines (medicines used for allergies)
  • potent analgesics (medicines used to treat intense pain)

Taking Sirdalud with food and drinks

Alcohol may increase the sedative effects of Sirdalud, so it is recommended that you do not drink alcohol while taking this medicine.

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 medicine.

Do not take during pregnancy or breastfeeding. A pregnancy test is recommended before starting treatment.

Use contraceptive methods in women of childbearing age during treatment and at least until one day after stopping it.

Driving and using machines

Sirdalud may make you feel drowsy, dizzy, and cause sweating, see flashes, so you should not drive or use hazardous machinery while taking this medicine.

Important information about some of the ingredients of Sirdalud

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

3. How to take Sirdalud

Follow exactly the administration instructions of this medicine contained in this leaflet or as indicated by your doctor. In case of doubt, ask your doctor or pharmacist.

Remember to take your medicine. Your doctor will indicate the duration of your treatment with Sirdalud. Do not stop it before or prolong it.

Swallow the tablets with a glass of water. The tablets can be broken in half.

The recommended dose is:

Adults

Half or one tablet (2 mg to 4 mg of tizanidine) three times a day. In severe cases, it may be increased up to a maximum daily dose of four tablets (16 mg of tizanidine). Patients with neurological disorders should not take more than nine tablets per day (36 mg of tizanidine).

Patient with kidney disease

A dose reduction may be necessary if you have kidney disease, so you should inform your doctor to adjust the dose accordingly.

Patient with liver disease

A dose reduction may be necessary if you have liver disease, so you should inform your doctor to adjust the dose accordingly.

Use in children

Experience in children is limited, therefore its use is not recommended in children under 18 years of age.

Elderly

Experience in the elderly is limited. Treatment should be started with the lowest dose and your doctor will adjust the dose accordingly.

If you take more Sirdalud than you should

Tell your doctor or pharmacist or go to the nearest hospital. You may need urgent medical attention. The symptoms of overdose are nausea, vomiting, low blood pressure, slow heart rate, dizziness, drowsiness, contraction of the pupils, agitation, difficulty breathing, or coma.

In case of overdose or accidental ingestion, consult the Toxicology Information Service. Phone 91 562 04 20. It is recommended to take the packaging and the leaflet of the medicine to the healthcare professional.

If you forget to take Sirdalud

Do not take a double dose to make up for forgotten doses. Take the forgotten dose as soon as possible, unless it is almost time for the next dose, in which case skip the missed dose and take the next dose when it is due.

If you stop taking Sirdalud

Do not change or stop taking Sirdalud without first consulting your doctor. Your doctor will gradually reduce the dose before stopping treatment completely. This will prevent worsening and reduce the risk of hypertension (high blood pressure, headache, dizziness) or tachycardia (rapid heart rate).

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

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

Very common(at least 1 in 10 patients) are:

Nervous system disorders: drowsiness, dizziness

Gastrointestinal disorders: gastrointestinal disturbances, dry mouth

General disorders and administration site conditions: fatigue

Musculoskeletal and connective tissue disorders: muscle weakness

Common(at least 1 in 100 patients but less than 1 in 10 patients) are:

Psychiatric disorders: insomnia, sleep disorders

Vascular disorders: decreased blood pressure. Consult your doctor immediately.

Gastrointestinal disorders: nausea

Investigations: a transient increase in liver enzymes (transaminases) may occur.

Uncommon(at least 1 in 1000 patients but less than 1 in 100 patients) are:

Cardiac disorders: slow heart rate.

Frequency not known(cannot be estimated from the available data):

Immune system disorders: allergic reactions, severe allergic reactions including difficulty breathing, dizziness (anaphylaxis) and swelling mainly of the face and throat (angioedema). Consult your doctor immediately.

Psychiatric disorders: hallucinations, confusion. Consult your doctor immediately.

Nervous system disorders: vertigo, speech confusion

Vascular disorders: fainting

Eye disorders: blurred vision

Gastrointestinal disorders: stomach pain, vomiting

Hepatobiliary disorders: acute hepatitis, liver failure. Consult your doctor immediately.

Skin and subcutaneous tissue disorders: skin inflammation with rash (dermatitis), skin redness (erythema), itching (pruritus), and itchy rash (urticaria and rash)

General disorders: loss of vitality and withdrawal symptoms (rebound hypertension and tachycardia).

Reporting of side effects

If you experience any side effects, talk to your doctor or pharmacist, even if it is possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storing Sirdalud

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

No special storage conditions are required.

Do not use this medicine after the expiry date which is stated on the packaging. The expiry date is the last day of the month stated.

Do not use this medicine if you notice that the packaging is damaged or shows signs of tampering.

Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicine in the SIGRE collection point at your pharmacy. If you have any further questions, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.

6. Contents of the pack and further information

Composition of Sirdalud

  • The active substance is tizanidine.

Each tablet contains 4 mg of tizanidine (as hydrochloride).

  • The other ingredients are lactose, microcrystalline cellulose, stearic acid, and anhydrous colloidal silica.

Appearance of the product and pack contents

Sirdalud 4 mg tablets are presented as a circular tablet, white in color, scored on one face and marked with RL on the other. Each pack contains 30 tablets.

Marketing authorization holder

BEXAL FARMACÉUTICA, S.A.

Centro Empresarial Parque Norte

Edificio Roble

C/ Serrano Galvache, 56

28033 Madrid

Spain

Manufacturer

Novartis Farmacéutica, S. A.

Gran Vía de les Corts Catalanes, 764

08013 Barcelona, Spain

or

Novartis Pharma GmbH

Roonstrasse 25

90429 Nuremberg, Germany

or

Lek Pharmaceuticals d.d.

Verovskova Ulica 57,

Ljubljana 1526,

Slovenia

Date of last revision of this leaflet:January 2020

Online doctors for SIRDALUD 4 mg TABLETS

Discuss questions about SIRDALUD 4 mg TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

Doctor
5.0(16)

Sergey Ilyasov

PsychiatryNeurology7 years of experience

Dr Sergey Ilyasov is an experienced neurologist and qualified psychiatrist who provides online consultations for adults and adolescents. Combining deep neurological expertise with a modern psychiatric approach, he ensures comprehensive diagnostics and effective treatment for a wide range of conditions affecting both physical and mental health.

Dr. Ilyasov helps patients in the following cases:

  • Chronic headaches (migraine, tension-type headache), back pain, neuropathic pain, dizziness, numbness in limbs, coordination disorders.
  • Anxiety disorders (panic attacks, generalized anxiety disorder), depression (including atypical and treatment-resistant forms), sleep disturbances (insomnia, hypersomnia, nightmares), stress, burnout.
  • Chronic pain syndromes and psychosomatic symptoms (e.g., irritable bowel syndrome related to stress, vegetative-vascular dystonia).
  • Behavioral disorders and concentration difficulties in adolescents (including ADHD, autism spectrum disorders), nervous tics.
  • Memory impairments, phobias, obsessive-compulsive disorder (OCD), emotional swings, and support for post-traumatic stress disorder (PTSD).

Thanks to his dual specialization in neurology and psychiatry, Dr Sergey Ilyasov offers integrated and evidence-based care for complex conditions requiring a multidisciplinary approach. His consultations focus on accurate diagnosis, development of an individualized treatment plan (including pharmacotherapy and psychotherapeutic methods), and long-term support adapted to each patient's unique needs.

Book an online consultation with Dr. Sergey Ilyasov to receive qualified assistance and improve your well-being today.

Book a video appointment
€106
Doctor
5.0(38)

Andrei Popov

General medicinePain medicine7 years of experience

Dr. Andrei Popov is a General Practitioner with specialized training in chronic pain. He provides online consultations for adult patients in Spain and other European countries.

Dr. Popov understands that seeking help with weight-related concerns or pain that has persisted for months can be difficult. Many patients come to him after trying different approaches without feeling truly heard. During the consultation, the doctor creates a comfortable and supportive, non-judgmental environment where the patient’s medical history can be discussed in detail, questions can be answered, and the next steps can be decided together.

Weight Management and Metabolic Health

Dr. Popov can help assess overweight, obesity, and related conditions such as hypertension, diabetes, or metabolic disorders. During the consultation, the patient’s medical history, test results, current medications, and previous treatments will be reviewed.

If you would like to learn about possible medication options or have already started treatment, the doctor can assess your situation, review the effectiveness and tolerability of the therapy, and clearly explain its benefits, potential risks, and alternatives.

Not every patient requires the same treatment. A consultation does not guarantee a prescription — it provides an objective medical assessment and a plan tailored to your individual situation.

Pain and General Medicine

You can also consult Dr. Popov regarding:

* chronic pain, migraines, neuralgia, and fibromyalgia;

* back, neck, lower back, or joint pain;

* hypertension, diabetes, and follow-up of chronic conditions;

* review of test results, medical reports, and current treatment;

* preventive medicine and a second medical opinion.

How the Consultation Works

The video consultation lasts up to 30 minutes. The doctor will listen carefully, review the information you provide, and explain the next steps in clear and understandable language.

If additional tests, an in-person consultation, or urgent medical care are required, the doctor will inform you directly.

Dr. Popov’s goal is to make sure the patient feels heard and leaves the consultation with a clear understanding of their condition and the next steps they can take.

Book a video appointment
€86
Doctor
5.0(12)

Yevgen Yakovenko

General medicine12 years of experience

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

  • Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
  • Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
  • Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
  • General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
  • Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
  • Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
  • Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
  • Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
  • Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
  • Certified in radiological diagnostics and robotic surgery.
  • Active participant in international medical conferences and research.

Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

Book a video appointment
€72
Doctor
5.0(3)

Lina Travkina

General medicine13 years of experience

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.Areas of medical care include:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.

  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.

  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.

  • Urological and infectious diseases: acute and recurrent cystitis, bladder and kidney infections, prevention of recurrent UTIs, asymptomatic bacteriuria.

  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.

  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.

  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.

  • Medical advice and follow-up consultations.

  • Test interpretation and diagnostic guidance.

  • Structured support for undiagnosed complaints.

  • Second opinion on diagnoses and treatment plans.

  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.

  • Post-operative recovery support and pain management.

  • Preconception counselling and postpartum support.

  • Immunity support and strategies to reduce frequency of infections.

Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

Book a video appointment
€75
Doctor
5.0(21)

Nuno Tavares Lopes

General medicine18 years of experience

Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies

  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management

  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses

  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment

  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance

  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis

  • Pain management: acute and chronic pain, post-surgical care

  • Public health: prevention, health screenings, long-term monitoring

  • Sick leave (Baixa médica) connected to Segurança Social in Portugal

  • IMT medical certificates for driving licence exchange

Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

Book a video appointment
€70

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Frequently Asked Questions

SIRDALUD 4 mg TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

The active ingredient in SIRDALUD 4 mg TABLETS is tizanidine. This information helps identify medicines with the same composition but different brand names.

The average pharmacy price for SIRDALUD 4 mg TABLETS is around 5.89 EUR. Prices may vary depending on the manufacturer and dosage form.

SIRDALUD 4 mg TABLETS is manufactured by Bexal Farmaceutica S.A.. Pharmacy brands and packaging may differ depending on the distributor.

Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether SIRDALUD 4 mg TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

Spain has a well-developed healthcare infrastructure across major cities such as Madrid, Barcelona, Valencia, and Seville. Pharmacies are widely available and operate under strict regulations, ensuring access to prescribed medications.

You can buy SIRDALUD 4 mg TABLETS in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

Other medicines with the same active substance (tizanidine) include SIRDALUD 2 mg TABLETS, ADALGUR 500 mg/2 mg TABLETS, BACLOFEN COMBIX 10 mg TABLETS. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.

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