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Can I take Pregabalin and Venlafaxine together?

Guía de interacción de medicamentos

Taking pregabalin and venlafaxine together can increase the risk of side effects that affect your central nervous system. You may feel more drowsy, dizzy, or sleepy than usual. It can also lead to difficulty concentrating, confusion, and a higher risk of falls, especially in older adults. In rare cases, it may cause breathing difficulties.

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Por qué sucede esto

Both medications have 'depressant' effects on the central nervous system. While they work in different ways, their sedative effects add together (an additive effect), making the overall impact on your alertness and coordination much stronger than if you took either medicine alone.

You should use caution when taking these two medicines together. Avoid driving or operating heavy machinery until you know how this combination affects you. It is best to avoid alcohol, as it will make the drowsiness much worse. If you experience extreme sleepiness, confusion, or shallow breathing, contact your doctor immediately.

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Trastornos de salud mental

Both pregabalin and venlafaxine can cause suicidal thoughts or an urge to self-harm. You must seek medical help immediately if your mood changes or you have thoughts of hurting yourself.

Depresión respiratoria severa

La pregabalina puede causar problemas respiratorios graves, especialmente si ya tiene una enfermedad pulmonar o si la toma junto con otros medicamentos sedantes como los opioides. Busque ayuda de emergencia si experimenta respiración lenta, superficial o difícil.

Embarazo

El uso de pregabalina durante los primeros tres meses de embarazo puede aumentar el riesgo de defectos de nacimiento. Se debe utilizar anticoncepción efectiva durante el tratamiento.

Dependencia de drogas y abstinencia

Pregabalin carries a risk of dependence and addiction. Do not stop taking it suddenly, as this can cause severe withdrawal symptoms such as seizures or anxiety.

Trastornos de la coagulación

Venlafaxine can increase your risk of bleeding, such as bruising easily or nosebleeds. This risk is higher if you also take blood-thinning medicines (like warfarin) or NSAID painkillers (like ibuprofen or aspirin).

Síndrome de serotonina

When venlafaxine is taken with other medicines that affect serotonin, there is a risk of serotonin syndrome. Seek urgent medical attention if you experience high fever, agitation, confusion, trembling, or rapid heartbeat.

Alcohol

It is best to avoid or strictly limit alcohol while taking these medicines. Both pregabalin and venlafaxine can cause drowsiness and dizziness; alcohol significantly increases these effects, which can lead to impaired coordination, severe sleepiness, and an increased risk of falls or accidents. Combining alcohol with these medications also increases the risk of liver damage.

Cafeína (Café, Té, Bebidas Energéticas)

Venlafaxine can increase your blood pressure and heart rate. High amounts of caffeine can worsen these effects, potentially leading to palpitations, jitteriness, or anxiety. Monitor your caffeine intake while taking this medicine.

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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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