Can I take 50 and Lisinopril together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
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Taking sildenafil (Viagra) and lisinopril together can cause your blood pressure to drop too low. This may make you feel dizzy, lightheaded, faint, or cause a headache.
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Why this happens
Both medicines work by widening your blood vessels to lower blood pressure. When used together, their effects add up, which can lead to an excessive drop in blood pressure.
What you should do
Back to contentsUse caution when combining these medicines. It is best to avoid or strictly limit alcohol, as it can further lower your blood pressure. When moving from a lying or sitting position, stand up slowly to prevent dizziness. If you feel very dizzy or faint, contact your doctor.
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Using other medicines
Back to contentsTaking 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.
14 Mar 2026 | Originally published

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