Can I take Amitriptyline and Fexofenadine together?
Guía de interacción de medicamentos
Publicado originalmente 25 Ene 2026
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Taking these two medicines together may increase the risk of side effects such as a very dry mouth, blurred vision, constipation, or difficulty passing urine. It may also make you feel more drowsy or dizzy than usual.
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Por qué sucede esto
Both amitriptyline and fexofenadine have 'anticholinergic' properties (though fexofenadine's effect is very weak). When combined, these effects can add up. Additionally, both can cause drowsiness, which may be more noticeable when they are taken at the same time.
Lo que deberías hacer
Volver al contenidoIt is generally safe to take these together, but you should be aware of increased side effects. If you feel very sleepy or dizzy, do not drive or operate machinery. If you find the dry mouth or constipation bothersome, speak to your pharmacist or doctor. Taking fexofenadine in the morning and amitriptyline at night may help reduce daytime drowsiness.
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Precauciones importantes
Volver al contenidoPensamientos y comportamientos suicidas
Amitriptyline can increase thoughts of self-harm or suicide, particularly in the first few weeks of treatment or when the dose is changed. Patients and carers should monitor for any sudden changes in mood or behaviour.
Trastornos del ritmo cardíaco (Síndrome de QT largo)
Amitriptyline can affect your heart rhythm. You must inform your doctor if you have a history of heart problems or are taking other medicines that affect the heart, as this can lead to a serious condition called an arrhythmia.
Indigestion remedies (Antacids)
Do not take indigestion remedies containing aluminium or magnesium within two hours of taking fexofenadine. These can significantly reduce the amount of medicine your body absorbs, making it less effective.
Advertencias sobre alimentos y bebidas
Volver al contenidoAlcohol
Beber alcohol mientras tomas amitriptilina puede hacerte sentir muy somnoliento e inestable al caminar. Es mejor evitar el alcohol, especialmente cuando comienzas el tratamiento o si tu dosis se incrementa.
Jugos de fruta (Pomelo, Naranja, Manzana)
Drinking large amounts of grapefruit, orange, or apple juice can reduce the amount of fexofenadine your body absorbs, making the medicine less effective. It is best to drink water when taking your tablet and avoid these juices for a few hours before and after taking your dose.
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Uso de otros medicamentos
Volver al contenidoTaking 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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