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Can I take Mirtazapine and Sertraline together?

Guía de interacción de medicamentos

Taking mirtazapine and sertraline together can lead to a rare but serious condition called serotonin syndrome. This happens because both medicines increase the levels of a chemical called serotonin in your brain. If levels get too high, it can cause symptoms like shivering, sweating, a fast heartbeat, agitation, muscle stiffness, or confusion. There is also a slightly increased risk of feeling very drowsy or dizzy when these two are combined.

You should only take mirtazapina y sertralina together if they have been specifically prescribed by a specialist who is monitoring you closely.

Taking them together increases your risk of síndrome serotoninérgico.

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Por qué sucede esto

Both mirtazapine and sertraline work by increasing the levels of serotonin in the brain. When used together, their effects add up, which can lead to serotonin levels becoming dangerously high.

You may be experiencing an interaction between mirtazapine and sertraline if:

  • You feel agitated, restless, or unusually anxious.

  • You experience confusion or changes in mental state.

  • You notice tremors, muscle twitching, or shaking.

  • You have excessive sweating, flushing, or fever.

  • You develop a fast or irregular heartbeat.

  • You experience severe drowsiness or dizziness.

  • Symptoms appear soon after starting, increasing, or combining the medicines.

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Si tienes alguno de los síntomas mencionados, deberías:

  • Contact your GP or pharmacist immediately for advice.

  • Seek urgent medical help if symptoms are severe or include high fever, confusion, or a fast heartbeat.

  • Do not stop taking mirtazapine or sertraline suddenly unless advised by a healthcare professional.

  • Avoid alcohol and other medicines that can affect mood or cause drowsiness unless approved.

  • Informe a su profesional de la salud sobre todos los demás medicamentos y suplementos que está tomando.

Síndrome de serotonina

Taking these two medicines together significantly increases the risk of serotonin syndrome, a potentially life-threatening condition. Seek immediate medical help if you experience high fever, agitation, confusion, or muscle twitching.

Suicidal thoughts and worsening of depression

These medicines can cause an increase in suicidal thoughts or self-harm, particularly in the first few weeks of treatment or when the dose is changed. Patients under 25 are at higher risk.

Agranulocitosis (recuento bajo de glóbulos blancos)

Mirtazapine can rarely cause a serious drop in white blood cells. You must contact your doctor immediately if you develop a fever, sore throat, mouth ulcers, or any other signs of infection.

Trastornos de la coagulación

La sertralina puede aumentar su riesgo de sangrado, especialmente en el estómago. Tenga precaución si toma medicamentos anticoagulantes (como warfarina) o analgésicos antiinflamatorios (como ibuprofeno o aspirina), ya que esto aumenta significativamente el riesgo de sangrado grave.

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Alcohol

You should avoid or strictly limit alcohol while taking these medicines. Both mirtazapine and sertraline can increase the sedative effects of alcohol, making you feel more drowsy, dizzy, or uncoordinated. Mirtazapine, in particular, is very sedating.

Jugo de toronja

Avoid drinking large amounts of grapefruit juice. It can increase the level of sertraline in your blood, which may increase the risk of side effects. One small glass is usually fine, but it is safest to avoid it.

Cafeína (café, té, bebidas energéticas)

Mirtazapine is often taken at night because it helps with sleep. Consuming caffeine can counteract this effect and may increase feelings of restlessness or anxiety, which the medicine is intended to treat.

Taking multiple medicines? Our Verificador de Interacciones de Medicamentos helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Descargo de responsabilidad

Esta información es solo para fines educativos generales y no debe considerarse como un sustituto del consejo médico profesional. Siempre consulte a su médico de cabecera, farmacéutico u otro profesional de la salud calificado antes de tomar decisiones sobre sus medicamentos. Las circunstancias individuales pueden variar, y solo un profesional de la salud que conozca su historial médico puede proporcionar orientación personalizada.

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Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.

  • 25 Ene 2026 | Publicado originalmente
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