Can I take Amlodipine and Doxadura together?
Drug interaction guide
Originally published 25 Jan 2026
Meets Patient’s editorial guidelines
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Taking these two medicines together can cause your blood pressure to drop lower than intended. This may 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
Both amlodipine and doxazosin (Doxadura) work by relaxing and widening your blood vessels to lower blood pressure. When used together, their effects add up (an additive effect), which can sometimes lower blood pressure too much.
What you should do
It is common for doctors to prescribe these together, but you should be cautious. When starting this combination or increasing the dose, get up slowly from a bed or chair to avoid dizziness. Monitor your blood pressure regularly at home if possible. If you feel very dizzy, faint, or have a racing 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.
Disclaimer
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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Article history
The information on this page is written and peer reviewed by qualified clinicians.
25 Jan 2026 | Originally published

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