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Can I take Pregabalin and Venlafaxine together?

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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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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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Mental health disorders

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.

Severe respiratory depression

Pregabalin can cause serious breathing problems, especially if you already have lung disease or if you take it with other sedating medicines like opioids. Seek emergency help if you experience slow, shallow, or difficult breathing.

Graviditet

Pregabalin use during the first three months of pregnancy may increase the risk of birth defects. Effective contraception must be used during treatment.

Drug dependence and withdrawal

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.

Bleeding disorders

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).

Serotonin Syndrome

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.

Alkohol

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.

Caffeine (Coffee, Tea, Energy Drinks)

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 Interaktionskontroll för läkemedel 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.

Ansvarsfriskrivning

Denna information är endast avsedd för allmän utbildning och bör inte användas som en ersättning för professionell medicinsk rådgivning. Rådfråga alltid din läkare, apotekare eller annan kvalificerad vårdpersonal innan du fattar beslut om dina mediciner. Individuella omständigheter kan variera, och endast en vårdpersonal som känner till din medicinska historia kan ge personlig vägledning.

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Artikelhistorik

Informationen på denna sida är skriven och granskad av kvalificerade kliniker.

  • 25 jan 2026 | Ursprungligen publicerad
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