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SIRDALUD 2 mg TABLETS

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About the medicine

How to use SIRDALUD 2 mg TABLETS

Translated with AI

This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet:information for the user

Sirdalud 2 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 experience 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 package leaflet:

  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. Storage of Sirdalud
  6. Contents of the pack and other 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 hip disease

  • neurological disorders such as multiple sclerosis (a disease that affects the coating of the central nerves), chronic myelopathy (spinal cord injury), 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 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 (an antibiotic used to treat infections)

Warnings and precautions

Talk to your doctor or pharmacist before you start taking 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 6 tablets (12 mg of tizanidine) per day and you feel nauseous, tired, and have no appetite, you should tell 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 can cause low blood pressure, especially when standing up or getting up
  • Sirdalud can 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 enough 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 make sure 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 can cause hypersensitivity reactions, see section 4.
    • It can 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 (an antibiotic used to treat infections) is contraindicated
  • antiarrhythmics (medicines used to treat heart rhythm disorders)
  • cimetidine (medicines used to treat duodenal or gastric ulcers)
  • cisapride (medicines used 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
  • amitriptyline (medicines used to treat depression)
  • ticlopidine (a medicine used to reduce the risk of stroke)

Sirdalud may increase the effects of:

  • antihypertensives (medicines used to treat high blood pressure)
  • diuretics (medicines that increase urine production)
  • sedatives (medicines that decrease 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 this medicine 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 some sugars, consult them before taking this medicine.

3. How to take Sirdalud

Follow the instructions for administration of this medicine contained in this leaflet or as indicated by your doctor. If you are unsure, ask your doctor or pharmacist.

Remember to take your medicine. Your doctor will tell you 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

One or two tablets (2 mg to 4 mg of tizanidine) three times a day. In severe cases, it can be increased up to a maximum daily dose of eight tablets (16 mg of tizanidine). Patients with neurological disorders should not take more than eighteen tablets per day (36 mg of tizanidine).

Patients with kidney disease

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

Patients with liver disease

A dose reduction or contraindication of the medicine may be necessary if you have liver disease, so you should inform your doctor so that they can 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, pupil constriction, agitation, difficulty breathing, or coma.

In cases of overdose or accidental ingestion, consult the Toxicology Information Service. Telephone 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 missed 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 about 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. This includes any possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Medicines and Healthcare Products Agency (AEMPS) website: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of 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 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. Return any unused medicine to your pharmacist. They will dispose of it in an environmentally friendly way. If you have any further questions, ask your pharmacist.

6. Contents of the pack and other information

Composition ofSirdalud

  • The active substance is tizanidine.

Each tablet contains 2 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 2 mg tablets are presented as a circular tablet, white in color, scored with the mark OZ. Each pack contains 30 tablets.

Marketing authorisation 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

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

Online doctors for SIRDALUD 2 mg TABLETS

Discuss questions about SIRDALUD 2 mg TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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Doctor

Daniel Cichi

Family medicine 24 years exp.

Dr Daniel Cichi is a family medicine doctor with over 20 years of clinical experience. He provides online consultations for adults, supporting patients with acute symptoms, chronic conditions, and everyday health concerns that require timely medical guidance. His background includes work in emergency care, ambulance services, and family medicine, which allows him to assess symptoms quickly, identify warning signs, and help patients choose the safest next steps – whether that means home care, treatment adjustment, or in-person evaluation. Patients commonly consult Dr Daniel Cichi for: 

  • acute symptoms: fever, infections, flu-like illness, cough, sore throat, shortness of breath;
  • chest discomfort, palpitations, dizziness, fatigue, and blood pressure concerns;
  • digestive problems: abdominal pain, nausea, diarrhoea, constipation, reflux;
  • sexually transmitted infections, erectile dysfunction;
  • muscle, joint, and back pain, minor injuries, post-traumatic symptoms;
  • chronic conditions: hypertension, diabetes, high cholesterol, thyroid disorders, weight loss, hair loss;
  • review and interpretation of lab tests, imaging reports, and medical documents;
  • medication review and treatment adjustment;
  • medical advice while travelling or living abroad;
  • second opinions and guidance on whether in-person care is needed.

Dr Cichi’s consultations are structured and practical. He focuses on clear explanations, risk assessment, and actionable recommendations, helping patients understand their symptoms and make informed decisions about their health.

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Doctor

Hocine Lokchiri

General medicine 21 years exp.

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

  • fever, chills, fatigue and viral symptoms
  • cough, sore throat, nasal congestion, breathing discomfort
  • bronchitis and mild asthma flare-ups
  • nausea, diarrhoea, abdominal pain, digestive infections
  • rashes, allergic reactions, redness, insect bites
  • muscle or joint pain, mild injuries, sprains
  • headache, dizziness, migraine symptoms
  • stress-related symptoms, sleep disturbances
  • questions about test results and treatment plans
  • management of chronic conditions in stable phases
Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

  • Advanced Trauma Life Support (ATLS)
  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
  • Prehospital Trauma Life Support (PHTLS)
  • eFAST and critical care transthoracic echocardiography
  • aviation medicine
He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.
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Doctor

Chikeluo Okeke

General medicine 4 years exp.

Dr Chikeluo Okeke is an internal medicine doctor with extensive international clinical experience. Originally from Nigeria, he has worked across multiple European healthcare systems and currently practises in Sweden. This professional path has given him a strong understanding of different medical approaches and the ability to work effectively with patients from diverse cultural and linguistic backgrounds.

Dr Okeke focuses on general internal medicine and adult primary care, combining clinical accuracy with careful attention to lifestyle, personal context, and everyday health concerns. His consultations are particularly well suited for people who seek medical advice online, live abroad, or need clear guidance without unnecessary complexity.

He provides online consultations covering symptom assessment, prevention, and long-term management of chronic conditions, helping patients understand what is happening and decide on appropriate next steps.

Common reasons for consultation:

  • General internal medicine concerns and initial health assessment.
  • Acute symptoms such as fever, cough, infections, pain, or weakness.
  • Chronic conditions and treatment adjustment.
  • Blood pressure issues, fatigue, metabolic concerns.
  • Preventive consultations and routine check-ups.
  • Interpretation of laboratory results and medical reports.
  • Medical advice for patients receiving care online.

Dr Okeke is known for his clear communication, calm approach, and cultural awareness. He listens carefully, explains medical decisions in a structured way, and supports patients in making informed choices about their health.

Online consultations with Dr Chikeluo Okeke offer reliable internal medicine care without geographic limitations, focused on medical relevance, clarity, and patient comfort.

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Doctor

Yevgen Yakovenko

General surgery 12 years exp.

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.

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€50
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Doctor

Joao Silva

General medicine 6 years exp.

Dr. João Silva is a physician with training and experience in the field of General and Family Medicine, dedicated to providing healthcare focused on the well-being and quality of life of his patients. Throughout his professional career, he has developed broad clinical competencies, striving to maintain a medical practice based on scientific evidence and continuous knowledge updates.

Between 2013 and 2019, he completed the Integrated Master's Degree in Medicine at the Abel Salazar Institute of Biomedical Sciences in Porto, where he acquired a solid academic and clinical education.

Subsequently, between January 2021 and December 2021, he completed the General Internship at the Entre Douro e Vouga Hospital Center in Santa Maria da Feira, where he had the opportunity to work in different hospital settings and deepen his competencies in several areas of medicine.

From January 2022 until March 2026, he works as a Resident Physician in General and Family Medicine at USF Salvador Machado in Oliveira de Azeméis, developing clinical activities in primary healthcare, follow-up of chronic patients, and health promotion in the community.

Complementing his medical training, Dr. João Silva also completed a Postgraduate Degree in Continuing and Palliative Care at CESPU, strengthening his preparation in the comprehensive approach to patient care, especially in situations requiring prolonged care and multidisciplinary support.

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€55
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Doctor

Anna Biriukova

General medicine 6 years exp.

Dr Anna Biriukova is an internal medicine doctor with clinical experience in cardiology, endocrinology, and gastroenterology. She provides online consultations for adults, offering expert medical support for heart health, hormonal balance, digestive issues, and general internal medicine.

Cardiology – Diagnosis and treatment of:

  • High blood pressure, blood pressure fluctuations, and cardiovascular risk prevention.
  • Chest pain, shortness of breath, arrhythmias (tachycardia, bradycardia, palpitations).
  • Leg swelling, chronic fatigue, reduced exercise tolerance.
  • EKG interpretation, lipid profile evaluation, cardiovascular risk assessment (heart attack, stroke).
  • Post-COVID-19 cardiac monitoring and care.
Endocrinology – Diabetes, thyroid, metabolism:
  • Diagnosis and management of type 1 and type 2 diabetes, and prediabetes.
  • Individual treatment plans including oral medications and insulin therapy.
  • GLP-1 therapy– modern pharmacological treatment for weight management and diabetes control, including drug selection, monitoring, and safety follow-up.
  • Thyroid disorders – hypothyroidism, hyperthyroidism, autoimmune thyroid diseases (Hashimoto’s, Graves’ disease).
  • Metabolic syndrome – obesity, lipid disorders, insulin resistance.
Gastroenterology – Digestive health:
  • Abdominal pain, nausea, heartburn, gastroesophageal reflux (GERD).
  • Stomach and intestinal conditions: gastritis, irritable bowel syndrome (IBS), indigestion.
  • Management of chronic digestive disorders and interpretation of tests (endoscopy, ultrasound, labs).
General internal medicine and preventive care:
  • Respiratory infections – cough, colds, bronchitis.
  • Lab test analysis, therapy adjustments, medication management.
  • Adult vaccinations – planning, contraindications assessment.
  • Cancer prevention – screening strategies and risk assessment.
  • Holistic approach – symptom relief, complication prevention, and quality of life improvement.
Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
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€60

Frequently Asked Questions

Is a prescription required for SIRDALUD 2 mg TABLETS?
SIRDALUD 2 mg TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in SIRDALUD 2 mg TABLETS?
The active ingredient in SIRDALUD 2 mg TABLETS is tizanidine. This information helps identify medicines with the same composition but different brand names.
How much does SIRDALUD 2 mg TABLETS cost in pharmacies?
The average pharmacy price for SIRDALUD 2 mg TABLETS is around 3.68 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures SIRDALUD 2 mg TABLETS?
SIRDALUD 2 mg TABLETS is manufactured by Bexal Farmaceutica S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of SIRDALUD 2 mg TABLETS online?
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 2 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.
What are the alternatives to SIRDALUD 2 mg TABLETS?
Other medicines with the same active substance (tizanidine) include SIRDALUD 4 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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