Can I take Clopidogrel and Naproxen together?
Drug interaction guide
Originally published 25 Jan 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
- Audio Version
- Add to preferred sources on Google
Taking clopidogrel and naproxen together significantly increases your risk of serious bleeding, particularly in the stomach or intestines. You may also bruise more easily or find that small cuts take much longer to stop bleeding. In some cases, this can lead to internal bleeding that is not immediately visible.
Why this happens
Both medicines affect how your blood clots, but in different ways. Clopidogrel stops blood cells called platelets from sticking together. Naproxen is an anti-inflammatory (NSAID) that also reduces platelet activity and can irritate the lining of the stomach. When used together, their effects add up, making it much harder for your body to form clots and protect the stomach lining.
What you should do
You should only take these two medicines together if your doctor has specifically told you to do so. If you need pain relief while taking clopidogrel, paracetamol is usually a safer choice. If your doctor confirms you must take both, they may prescribe an extra medicine (like omeprazole or lansoprazole) to protect your stomach. Seek urgent medical help if you notice black, tarry stools, vomit that looks like coffee grounds, or severe stomach pain.
Important precautions
Surgery or dental work
You must tell any surgeon, anaesthetist, or dentist that you are taking clopidogrel. You may need to stop taking it 7 days before any planned procedure to prevent excessive bleeding.
Stomach ulcers or bleeding disorders
Do not take clopidogrel if you have an active stomach ulcer or any condition causing active bleeding. Seek urgent medical help if you notice signs of internal bleeding, such as black, tarry stools or vomiting blood.
Asthma
Do not take naproxen if you have ever had an asthma attack, wheezing, or a rash triggered by aspirin or other non-steroidal anti-inflammatory drugs (NSAIDs).
Pregnancy (third trimester)
Do not take naproxen if you are more than 20 weeks pregnant, as it can cause serious heart or kidney problems in the unborn baby and lead to complications during delivery.
Food and drink warnings
Alcohol
Drinking alcohol while taking these medicines can increase the risk of bleeding in your stomach and intestines. It is best to limit your alcohol intake.
Food (General)
Naproxen should ideally be taken with or shortly after a meal or a snack. This helps to protect your stomach lining and reduces the risk of indigestion or stomach pain.
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

Drug interactions checker
Can I take Guanfacine and Tizanidine together?
Taking these two medicines together can cause your blood pressure to drop too low and make you feel very sleepy or dizzy. You may feel faint, lightheaded, or even pass out, especially when standing up quickly. It can also significantly slow your heart rate.

Drug interactions checker
Can I take Flecainide and Wegovy together?
Wegovy (semaglutide) can slow down how quickly your stomach empties. This might change how your body absorbs flecainide, which is a medicine that needs to be kept at very specific levels in your blood to work safely and effectively. Additionally, both medications can occasionally affect your heart rhythm or heart rate.
Article history
The information on this page is written and peer reviewed by qualified clinicians.
Article also available in English, German, Spanish, French, Italian, Portuguese, Hindi, Hebrew, Arabic, and Swedish.
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.
More in drug interactions checker
- Can I take Alendronic acid and Lansoprazole together?
- Can I take Aspirin and Quetiapine together?
- Can I take Black cohosh and Folic acid together?
- Can I take Cod liver oil and Paracetamol together?
- Can I take Codeine and Ibuprofen together?
- Can I take Colesevelam and Naproxen together?
- Can I take Diazepam and Tirzepatide together?
- Can I take Fluanxol and Vitamin D together?
- Can I take Ginger and Vitamin B complex together?
- Can I take Ginseng and Losartan together?
- Can I take Glucosamine and Oestrogel pump-pack together?
- Can I take Iron supplements and Wellbutrin together?
- Can I take Lansoprazole and Mirabegron together?
- Can I take Levothyroxine and Vitamin D together?
- Can I take Magnesium and Warfarin together?
- Can I take Pancreatin and Solifenacin together?
- Can I take Sertraline and Alcohol together?
- Can I take Solifenacin and Vitamin D together?
- Can I take Tetracycline and Calcium together?
- Can I take Vitamin B12 and Vitamin C together?