Skip to main content

Can I take Aspirin 300 and Naproxen together?

Drug interaction guide

Taking aspirin and naproxen together significantly increases your risk of developing stomach ulcers, internal bleeding, and kidney problems. Additionally, naproxen can interfere with aspirin's ability to protect your heart, making the aspirin less effective if you are taking it to prevent a heart attack or stroke.

Poursuivre la lecture ci-dessous

Why this happens

Both drugs belong to the same family (NSAIDs) and work by blocking enzymes called COX-1 and COX-2. When used together, they have an 'additive' effect on the stomach lining, making it much more vulnerable to damage. Furthermore, naproxen can physically block the spot where aspirin needs to attach to your blood cells (platelets), preventing aspirin from thinning the blood properly.

What you should do

You should not take these two medicines together unless specifically instructed and monitored by your doctor. If you require pain relief while taking aspirin, paracetamol is generally a safer alternative. If your doctor has prescribed both, watch for signs of stomach bleeding, such as black tarry stools, coughing up blood, or severe stomach pain.

Poursuivre la lecture ci-dessous

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.

Clause de non-responsabilité

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.

Poursuivre la lecture ci-dessous

Historique de l'article

Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.

  • 25 janvier 2026 | Publié à l'origine
Vérification de l'éligibilité à la grippe

Demandez, partagez, connectez-vous.

Parcourez les discussions, posez des questions et partagez vos expériences sur des centaines de sujets liés à la santé.

vérificateur de symptômes

Vous ne vous sentez pas bien ?

Évaluez gratuitement vos symptômes en ligne

Inscrivez-vous à la newsletter destinée aux patients

Votre dose hebdomadaire de conseils santé clairs et fiables, rédigés pour vous aider à vous sentir informé, confiant et maître de la situation.

Veuillez saisir une adresse e-mail valide.

En vous abonnant, vous acceptez notre politique de confidentialité. Vous pouvez vous désabonner à tout moment. Nous ne vendons jamais vos données.