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Can I take Amitriptyline and Zapain together?

Guía de interacción de medicamentos

Taking these two medicines together can make you feel very drowsy, dizzy, and confused. It can also slow down your breathing and make you more likely to experience constipation or a dry mouth.

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Por qué sucede esto

Both amitriptyline and Zapain (which contains codeine and paracetamol) affect the central nervous system. Amitriptyline is an antidepressant and Zapain contains an opioid (codeine); when combined, their sedative effects add together. Additionally, both drugs have 'anticholinergic' effects, which can lead to side effects like a dry mouth or constipation.

You should speak to your doctor before taking these together. If your doctor has prescribed both, be aware that you may feel very sleepy. Do not drive or operate machinery until you know how they affect you. Avoid drinking alcohol, as this will make the drowsiness much worse. Seek medical help immediately if you experience extreme sleepiness or difficulty breathing.

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Pensamientos suicidas y cambios de humor

La amitriptilina puede aumentar el riesgo de pensamientos suicidas o autolesiones, especialmente al comenzar el tratamiento o al cambiar las dosis. Busque ayuda médica inmediata si su estado de ánimo cambia o se siente deprimido.

Breathing problems (e.g. asthma, COPD)

Zapain contains codeine, which can cause life-threatening breathing difficulties. You must not take this if you have severe asthma or significant lung disease.

Serotonin syndrome risk

Taking these together increases the risk of a rare but serious reaction called serotonin syndrome. Seek urgent medical help if you experience high fever, agitation, or muscle twitching.

Addiction and withdrawal

Zapain contains codeine, an opioid that can cause addiction if used for more than 3 days. Stopping suddenly after long-term use can cause severe withdrawal symptoms.

Alcohol

You must avoid or strictly limit alcohol while taking these medicines. Both amitriptyline and the codeine in Zapain cause drowsiness and slow your breathing. Alcohol significantly increases these effects, which can lead to dangerous levels of sedation, breathing difficulties, and impaired coordination.

Cafeína (Café, té, bebidas energéticas)

Amitriptyline can sometimes cause a fast or irregular heartbeat. High amounts of caffeine can worsen this effect and may also increase feelings of anxiety or restlessness, potentially counteracting the calming effect of the medication.

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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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