Can I take Quinine and Ripinrole together?
Drug interaction guide
Originally published 25 Jan 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
Taking quinine and ropinirole together may increase the risk of side effects from the ropinirole, such as dizziness, nausea, or sudden sleepiness. There is also a potential risk of affecting your heart rhythm.
In this article:
Continue reading below
Why this happens
Quinine can interfere with the way the liver breaks down ropinirole (by inhibiting the CYP1A2 enzyme), leading to higher levels of the medicine in your blood. Additionally, both drugs can potentially affect the electrical activity of the heart.
What you should do
You should speak to your doctor before taking these two medicines together. Your doctor may need to adjust your dose of ropinirole or monitor your heart health more closely. If you feel dizzy, faint, or experience a racing heartbeat, seek medical advice immediately.
Continue reading below
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.
Patient picks for Drug interactions

Treatment and medication
Can I take Paracetamol and Ibuprofen together?
There is no harmful interaction between paracetamol and ibuprofen. In fact, they are often taken together because they work in different ways to provide better pain relief than either medicine alone.

Treatment and medication
Can I take Lions mane and Maitake together?
Both Lion's Mane and Maitake mushrooms may lower blood sugar levels and slow down blood clotting. Taking them together might increase the risk of your blood sugar dropping too low (hypoglycaemia) or increase the chance of bruising and bleeding.
Continue reading below
Article history
The information on this page is written and peer reviewed by qualified clinicians.
25 Jan 2026 | Originally published

Ask, share, connect.
Browse discussions, ask questions, and share experiences across hundreds of health topics.

Feeling unwell?
Assess your symptoms online for free
Sign up to the Patient newsletter
Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.
By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.