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Can I take Bisoprolol and Trimbow together?

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Bisoprolol and Trimbow (which contains formoterol) work in opposite ways on the airways. Bisoprolol may cause the airways to narrow, making it harder to breathe and potentially triggering asthma or COPD symptoms. It also makes the formoterol in the Trimbow inhaler less effective at opening your airways.

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Varför detta händer

Bisoprolol is a 'beta-blocker' and formoterol (in Trimbow) is a 'beta-agonist'. They compete for the same receptors in the lungs. Bisoprolol blocks these receptors, which can cause the bronchial tubes to tighten and prevents the inhaler from working properly.

You must speak to your doctor before using these together. Doctors generally avoid prescribing beta-blockers like bisoprolol to patients with breathing conditions unless there is no other option. If you must take both, your doctor will monitor your breathing closely. Seek medical help immediately if you experience sudden wheezing or shortness of breath.

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Acute breathing distress

Bisoprolol is a beta-blocker and can cause narrowing of the airways, potentially triggering a severe asthma attack or worsening breathing difficulties. This is particularly important as you are also using Trimbow for a lung condition.

Diabetes

Bisoprolol can mask the warning signs of low blood sugar (hypoglycaemia), such as a fast heartbeat or tremors. You will need to monitor your blood sugar more closely.

Correct usage technique

Trimbow is a 'preventer' inhaler and must be used every day even if you feel well. You must rinse your mouth with water after every use to prevent developing oral thrush (a fungal infection in the mouth).

Alkohol

Alcohol can increase the blood-pressure-lowering effect of bisoprolol, which may make you feel dizzy, lightheaded, or faint, especially when you first start taking it or when your dose is increased. It is best to limit alcohol intake until you know how the medicine affects you.

Caffeine

Trimbow contains formoterol, a medicine that can increase your heart rate. Consuming large amounts of caffeine (found in coffee, tea, energy drinks, and chocolate) may worsen this effect, leading to palpitations, tremors, or a rapid heartbeat.

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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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