The Two Weeks Before Surgery: Supplements to Mention

Pre-operative paperwork asks about medication, and most people answer it accurately. The same form usually asks about supplements, and a surprising number of people leave that blank — not to conceal anything, but because a capsule bought in a health food shop does not feel like it belongs in the same category as a prescription.

From the anaesthetist's point of view, it does.

Why Surgical Teams Ask

Two concerns dominate. The first is bleeding: several common botanicals affect platelet function or interact with anticoagulants, and a surgical team planning for normal clotting would rather know in advance. The second is interaction with anaesthetic agents, where a few supplements can affect sedation depth, blood pressure or heart rate.

Neither concern means the supplement was harmful. It means the timing has changed and the team needs an accurate picture.

The Ones That Commonly Come Up

• Ginkgo biloba — frequently flagged for effects on platelet function; commonly stopped in advance.
• Garlic in concentrated supplement form — raised for similar reasons.
• Ginger at supplement doses — same category.
• Ginseng — raised for both bleeding and blood-sugar effects.
• Vitamin E at higher doses — affects clotting.
• Fish oil at higher doses — same.
• St John's wort — interacts with a wide range of drugs through liver enzyme effects, including some used around surgery.
• Valerian and kava — may interact with sedatives and anaesthetic agents.

A common general instruction is to stop herbal supplements a couple of weeks before an operation, but the interval should come from your surgical team, not an article. It varies with the procedure, the supplement and your own medical history.

How to Handle It Practically

1. Photograph the labels. Every supplement you take, front and Supplement Facts panel. Far more accurate than remembering names.
2. Bring the photos or the bottles to the pre-operative appointment.
3. Ask directly which to stop and how far in advance — and write down the answer.
4. Ask when to restart. This is routinely forgotten, and the answer depends on healing and on any new medication.
5. Do not stop prescribed medication on your own initiative because of something you read. That instruction comes from the prescriber.

The Same Conversation Applies Without Surgery

If you take an anticoagulant such as warfarin, or antiplatelet medication, the Ginkgo question is worth raising whether or not an operation is planned. The same is true if you are on medication of any kind, pregnant or nursing.

This is not a reason to avoid botanical supplements. It is a reason to treat them as what they are — active substances, which is precisely why anyone takes them — and to give your doctor or pharmacist the full list once rather than assuming it is not relevant.

Where This Touches VapoCept®

VapoCept® contains Ginkgo Biloba Extract, which is on the list above. If you have surgery scheduled, or you take a blood thinner or antiplatelet medicine, show the label to your doctor and follow their instruction on whether and when to stop.

We put this on the homepage, in the FAQ, on the Ginkgo guide and here, because it is the single most practically important safety point about this formula — and burying it would be the wrong call on a site that asks you to read labels carefully.