Can I take Sildenafil and Grapefruit together?
Guía de interacción de medicamentos
Publicado originalmente 25 Ene 2026
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Drinking grapefruit juice or eating grapefruit while taking sildenafil can significantly increase the amount of the medicine in your bloodstream. This makes side effects much more likely and potentially more severe. You may experience a very fast or irregular heartbeat, headaches, dizziness, flushing, or a sudden drop in blood pressure which could lead to fainting.
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Por qué sucede esto
Your body uses a specific enzyme (called CYP3A4) in the gut and liver to break down sildenafil. Grapefruit contains natural compounds that 'block' this enzyme. Because the enzyme is busy dealing with the grapefruit, it cannot break down the sildenafil as quickly as usual, leading to higher-than-intended levels of the drug in your body.
Lo que deberías hacer
Volver al contenidoIt is best to avoid grapefruit and grapefruit juice entirely while using sildenafil. If you have already consumed grapefruit, wait at least 24 hours before taking a dose of sildenafil. If you experience chest pain, dizziness, or a prolonged erection (lasting more than 4 hours) after taking this combination, seek medical help immediately.
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Precauciones importantes
Volver al contenidoNitrate medication use (e.g. GTN spray, isosorbide mononitrate)
You must never take sildenafil if you are using nitrate medicines for chest pain or heart problems. Combining them can cause a sudden, life-threatening drop in blood pressure.
Sudden vision loss or priapism
Seek immediate medical help if you experience a sudden decrease or loss of vision, or if you have an erection that lasts for more than 4 hours.
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Volver al contenidoPomelo y jugo de pomelo
Grapefruit juice can increase the amount of sildenafil in your blood. This may increase the risk of side effects like headaches, flushing, or low blood pressure. It is best to avoid drinking large amounts of grapefruit juice while taking this medicine.
Alcohol
Drinking alcohol can make it harder to get an erection. Alcohol can also lower your blood pressure; taking it with sildenafil may cause your blood pressure to drop too low, leading to dizziness or fainting. It is recommended to keep alcohol intake to a minimum.
Comidas ricas en grasa
If you take sildenafil with a heavy or high-fat meal (such as a burger and chips), the medicine may take longer to start working. For the fastest effect, it is best taken on an empty stomach or with a light meal.
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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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