Medications and Supplements to Stop Before Surgery: What, and How Many Days Before

Why some medications and supplements need to stop before surgery

Certain medications and supplements blunt the blood's normal ability to clot, raising the risk of bleeding and bruising during and after surgery. Others interact with anaesthetic drugs or slow down wound healing. Stopping the right ones at the right time — on a schedule set by your surgeon and, where relevant, your prescribing physician — is one of the simplest, lowest-cost ways to reduce complications from an elective operation. This article is educational and does not replace your surgeon's written instructions; your own care team always sets the final list of what to take and what to hold.

The guidance below applies to any procedure that cuts through skin and the tissue beneath it — from rhinoplasty and revision rhinoplasty to blepharoplasty and otoplasty. The underlying biology is the same across all of them: lower intraoperative bleeding and easier wound healing afterward.

Aspirin and NSAIDs: how many days before surgery to stop

Aspirin and non-steroidal anti-inflammatories such as ibuprofen and naproxen interfere with normal platelet function, raising the risk of bleeding and bruising. Mayo Clinic's own rhinoplasty preparation page states plainly that medicines containing aspirin or ibuprofen should be stopped two weeks before and two weeks after surgery.

• Aspirin blocks platelets irreversibly. Because a new platelet takes roughly 7 to 10 days to replace it, this is the window most commonly recommended before surgery.
• Ibuprofen and naproxen have a more reversible effect but still reduce platelet aggregation — which is why Mayo Clinic lists both on its rhinoplasty and blepharoplasty preparation pages.
• Acetaminophen (Tylenol) has no effect on platelets and is the safe alternative; Mayo Clinic specifically approves it for pain control after blepharoplasty.

Stronger anticoagulants: why only your doctor stops these

Warfarin, clopidogrel and the newer oral anticoagulants are prescribed to prevent dangerous clots in patients with heart disease, a mechanical valve or a history of stroke. Cleveland Clinic is explicit that these drugs should never be stopped without coordinating with the prescribing physician, since stopping them on your own can be more dangerous than the surgery itself.

As a general guide, not a prescription, commonly used windows are: aspirin around 7–10 days, clopidogrel around 5–7 days, and warfarin around 5 days before surgery, with a repeat coagulation (INR) check close to the operation date. The final call always belongs to the physician who prescribed the drug, since they weigh your actual cardiovascular risk against the surgical bleeding risk — and sometimes the drug needs to be "bridged" with a shorter-acting substitute rather than simply stopped.

Herbal supplements: which ones actually raise bleeding risk

Generic online lists tend to lump every herbal supplement together as dangerous, but a review published in Baylor University Medical Center Proceedings paints a more precise picture: garlic and hawthorn are strongly and independently associated with surgical bleeding, while fish oil, ginseng and saw palmetto showed no such association in the same review.

Ginkgo biloba mainly becomes a concern when combined with an anticoagulant, and the evidence on ginger remains mixed. Because sorting low-risk from high-risk supplements is genuinely difficult for a non-specialist, the review's own practical conclusion is simple: stop non-essential supplements about two weeks before surgery, and tell your surgeon the name and dose of everything you take — herbal or not.

Birth control pills before surgery: do you actually need to stop them?

Contrary to a common assumption, combined oral contraceptives don't automatically need to be stopped before a short, ambulatory procedure like rhinoplasty or blepharoplasty. MedlinePlus's own drug information for combined oral contraceptives states that patients should tell their doctor or dentist they're taking the pill before any surgery — not that they must stop it.

The traditional advice to stop the pill comes from its estrogen-related increase in venous clot risk, a risk that matters most in long operations with prolonged immobility. In the short, outpatient procedures performed here — where patients are typically walking the same day or the next morning — that risk is considerably lower. That said, stopping the pill on your own without a backup method creates its own risk: an unintended pregnancy going into general anaesthesia. Make this decision together with your surgeon, and your gynaecologist if needed — not alone.

Antibiotics, antihistamines and cold medicine: what's actually a problem

Prescribed antibiotics and routine antihistamines are usually not a problem — your surgeon may even prescribe a preventive antibiotic around the time of surgery. The real concern is decongestant cold medicines containing pseudoephedrine or phenylephrine, which raise blood pressure and heart rate and can interact with anaesthetic drugs.

If you have an active cold, tell your surgeon before the operation; nasal congestion and mucosal swelling can affect the surgical plan for nose surgery specifically, and sometimes call for a short postponement. Daily non-sedating antihistamines like loratadine are usually continued without issue; a sedating one like diphenhydramine should be flagged to the anaesthesia team, since its effect stacks with sedatives used during the procedure.

Isotretinoin (Accutane) and sedatives: special notes

Isotretinoin, the common treatment for severe acne, thins and weakens the skin and slows wound healing. MedlinePlus's own drug information for isotretinoin explicitly advises avoiding skin-wounding procedures such as laser treatments and dermabrasion — mechanically similar to surgery — while on the drug and for six months after finishing it, because it raises the risk of abnormal scarring.

For that reason, most plastic surgeons take a conservative approach and postpone elective facial surgery for roughly six months after a patient's last isotretinoin dose, though some newer studies have questioned whether that traditional window needs to be quite that long. If you take an anti-anxiety medication or sedative such as a benzodiazepine or an opioid, never stop it abruptly — sudden discontinuation can trigger withdrawal. Simply disclose it to the anaesthesia team so they can adjust intraoperative dosing accordingly.

Timing table: common medications and supplements before surgery

The table below summarises the windows most often cited in reputable medical sources for stopping common medications and supplements before facial cosmetic surgery. These are general guides, not a prescription — your surgeon sets the final schedule based on your own medical history.

Medications you should never stop on your own

Cardiac medications such as beta-blockers, thyroid hormone, anti-seizure drugs, long-term oral corticosteroids, insulin and most antidepressants fall into a category where sudden discontinuation can be more dangerous than the surgery itself. Keep taking these, and coordinate only the exact dosing on the morning of surgery with your surgeon and treating physician.

Abruptly stopping a long-term corticosteroid can trigger acute adrenal insufficiency and requires a gradual taper, not a sudden stop. Blood pressure and heart medication is usually still taken the morning of surgery with a small sip of water, unless your surgeon instructs otherwise. The common thread across all of these: always name every medication you take for a chronic condition, but leave the decision of whether to stop or continue it to your doctors, not yourself.

What differs between rhinoplasty, blepharoplasty and otoplasty

The list of medications to avoid is broadly the same across every procedure this clinic performs, because the underlying biology — less bleeding, easier healing — is shared by all of them. The practical differences come down to tissue sensitivity and the patient's age group.

In blepharoplasty, because the skin around the eyes is extremely thin and bruising shows faster and more visibly, surgeons tend to be stricter about a complete stop of aspirin and herbal supplements. In otoplasty, especially in children, the medication list is usually shorter since children rarely take chronic anticoagulants; the more important point in this age group is avoiding aspirin in children (due to the risk of Reye's syndrome) and disclosing every cold syrup precisely. For revision rhinoplasty, which typically runs longer than a first operation, your surgeon may take a somewhat more conservative approach to the supplement-stopping window.

When to talk to your doctor

Raise all of the following with your surgeon, without editing them down:

• The exact name and dose of every medication, supplement, vitamin and herbal product you take — even if it seems unimportant.
• Any heart condition, prior blood clot, or use of an anticoagulant or antiplatelet drug.
• Use of birth control pills, isotretinoin, or any psychiatric medication.
• Any previous drug reaction or allergy, especially to anaesthesia.

If you stop a medication and notice something unexpected — bleeding gums, unexplained bruising, palpitations — call the clinic before the day of surgery. For a full list of pre-operative tests, see our pre-rhinoplasty tests guide, and to have your own medication list reviewed, you can book a consultation.

Sources

• Mayo Clinic — Rhinoplasty: How you prepare
• Mayo Clinic — Blepharoplasty: How you prepare
• Cleveland Clinic — Herbal Supplements & Surgery
• Cleveland Clinic — Anticoagulants (Blood Thinners)
• Baylor University Medical Center Proceedings — Dietary supplements and bleeding
• MedlinePlus — Isotretinoin
• MedlinePlus — Ethinyl Estradiol and Norethindrone (Oral Contraceptives)