Drug, Food and Supplement — Interactions With Bevacizumab

NSAIDs such as ibuprofen, diclofenac and naproxen are not safe to take during bevacizumab treatment without guidance. They affect platelet function and the protective lining of the gut — both of which matter on a treatment that already raises bleeding risk and slows wound healing. For pain you would normally treat with ibuprofen, ask your team what is appropriate. Paracetamol is generally safer in this context, but your team should make that call based on your full picture.

Turmeric in cooking is not a concern. Concentrated curcumin capsules or powders are a different matter — at supplement doses, curcumin has measurable antiplatelet effects that add to the bleeding risk bevacizumab already carries. Bring the product to your next appointment and show your team the dose. They will tell you whether what you are taking is a problem.

Yes, and this matters more than most patients expect. Several widely-used supplements — ginkgo biloba, high-dose fish oil, high-dose vitamin E, and various Ayurvedic formulations — affect bleeding, wound healing or blood pressure, all of which bevacizumab also affects. Telling your team does not mean they will stop everything. It means they can give you an informed answer about what is safe to continue and what is not.

Do not stop aspirin on your own. Aspirin prescribed for a heart condition or stroke prevention carries an important protective purpose, and stopping it suddenly without guidance creates its own serious risk. Tell your oncology team that you are on aspirin and what it is for. They will coordinate with your cardiologist or GP if needed and make a decision that accounts for both your heart and your cancer treatment.

Most blood pressure medicines can be continued, and managing blood pressure becomes more important during bevacizumab treatment, not less. Bevacizumab causes hypertension as one of its most common effects. Your team will monitor your readings throughout and may need to adjust your existing medication or add a new one. Tell your team which antihypertensive you take and at what dose so they can track your blood pressure against the right baseline.

Surgery and bevacizumab need to be timed carefully because bevacizumab impairs wound healing. NCCN and ASCO guidance recommends holding bevacizumab for a defined period before and after elective surgery — the exact interval depends on the nature of the operation and is decided by your oncologist. If you need emergency surgery, tell the surgical team immediately that you are on bevacizumab. Do not stop the infusions yourself before a planned procedure; that decision belongs to your treating team.

A small amount from food or a standard low-dose supplement may be fine, but high-dose omega-3 capsules have measurable antiplatelet effects that your team should know about. Bring the product to your next appointment and show them the dose per capsule and how many you take. They can tell you quickly whether it is a concern at your current dose.

These are widely used and rarely mentioned to oncology teams, which is exactly the combination worth changing. The evidence on most Ayurvedic preparations alongside bevacizumab is still developing, so your team may not be able to give a definitive answer for every preparation — but they can flag anything that overlaps with bevacizumab's known risks around bleeding, blood pressure and wound healing. Tell your team what you are taking and how often. We will not ask you to stop something important to you without reason.