Can I take Mirabegron astellas and Tamsulosin together?
Drug interaction guide
Originally published 25 Jan 2026
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Taking these two medicines together is generally safe and is a common treatment for men with urinary symptoms. However, both drugs can lower your blood pressure. This might make you feel dizzy, lightheaded, or faint, especially when you stand up quickly from a sitting or lying position.
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Why this happens
Tamsulosin works by relaxing muscles in the prostate and bladder neck, but it can also relax blood vessels, leading to lower blood pressure. Mirabegron can occasionally affect blood pressure and heart rate. When used together, the combined effect on your circulation may increase the risk of feeling dizzy.
What you should do
You can take these medicines together, but be careful when moving from a lying or sitting position to standing. If you feel dizzy, sit or lie down until the feeling passes. It is a good idea to monitor your blood pressure regularly. If you experience severe dizziness, fainting, or a very fast heartbeat, contact your doctor.
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Using other medicines
Taking multiple medicines? Our Medicines Interaction Checker 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
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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Historia del artículo
La información de esta página ha sido redactada y revisada por médicos cualificados.
25 Enero 2026 | Publicado originalmente
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