PATIENT SAFETY GUIDE
The Complete Guide to Medications, Supplements & Substances You Must Stop Before Cosmetic Surgery
By Dr. Cesar Velilla, MD | Medical Director, Evolution MD | Board-Certified Cosmetic Surgeon
Harvard Executive Education in AI for Healthcare
Last Updated: February 2026 | Medically Reviewed | Reading Time: 25 minutes
As a board-certified cosmetic surgeon in Miami, one of the most important conversations I have with patients happens before they ever set foot in my operating room. It is the conversation about what medications, supplements, vitamins, and substances need to be stopped well in advance of surgery.
This is not a minor detail. It is a critical safety issue. In my practice at Evolution MD, I have seen firsthand how a single overlooked supplement can turn a routine procedure into a complicated recovery. A patient who forgot to stop fish oil before a facelift and developed a hematoma. A patient on a GLP-1 weight loss medication who had significant nausea risk under anesthesia. These are preventable situations.
I wrote this guide to give you the most comprehensive, up-to-date resource available, based on the latest 2024–2025 medical guidelines from the American Society of Anesthesiologists (ASA), the American Society of Plastic Surgeons (ASPS), and the American Heart Association/American College of Cardiology (AHA/ACC).
⚠ Important: Never stop any prescription medication without first consulting your prescribing doctor. This guide is educational and does not replace the specific instructions from your surgical team. Always follow your surgeon’s personalized pre-operative instructions.
1. Prescription Blood Thinners & Anticoagulants
Hematoma, a collection of blood under the skin, is one of the most serious complications in cosmetic surgery. It is both a medical emergency and an aesthetic disaster. That is why blood-thinning medications are the single highest priority on this list.
Key principle: If you have a cardiac stent or mechanical heart valve, never stop your antiplatelet or anticoagulant medication without explicit written clearance from your cardiologist. Stent thrombosis can be fatal. Elective cosmetic surgery should always be deferred until it is medically safe to pause these medications.
Warfarin & Vitamin K Antagonists
Medication | When to Stop | Key Details |
Warfarin (Coumadin, Jantoven) | 5 days before | Check INR 1–2 days pre-op; must be ≤1.5. Resume 12–24 hours post-op with confirmed hemostasis. |
Direct Oral Anticoagulants (DOACs)
These newer blood thinners have more predictable pharmacology than warfarin but still require careful timing before surgery.
Medication | When to Stop | Key Details |
Rivaroxaban (Xarelto) | 3 days before | Most cosmetic procedures are high bleeding risk. Add 1 day if kidney function impaired. |
Apixaban (Eliquis) | 3 days before | Add 1 day if CrCl <50 mL/min. |
Dabigatran (Pradaxa) | 2–4 days before | Timing depends on kidney function. Has a specific reversal agent (Praxbind). |
Edoxaban (Savaysa) | 3 days before | 50% cleared by kidneys; adjust for renal impairment. |
Antiplatelet Medications
These are commonly prescribed after heart attacks and stent placements. They work differently from anticoagulants by preventing platelets from clumping together.
Medication | When to Stop | Key Details |
Aspirin (Rx doses) | 7–14 days before | Irreversibly blocks platelets for their entire 7–10 day lifespan. Even 81 mg (baby aspirin) has significant effects. |
Clopidogrel (Plavix) | 5–7 days before | Most commonly encountered antiplatelet in cosmetic patients. Requires new platelet production for recovery. |
Prasugrel (Effient) | 7–10 days before | More potent than Plavix with higher bleeding risk. Requires longer hold. |
Ticagrelor (Brilinta) | 5 days before | Uniquely reversible, so it clears faster than other antiplatelets. |
Dipyridamole / Aggrenox | 7 days before | Aggrenox contains aspirin, which dictates the timeline. |
Cilostazol (Pletal) | 5–7 days before | Used for leg circulation problems. Antiplatelet plus blood vessel dilating effects. |
Injectable Blood Thinners
Medication | When to Stop | Key Details |
Enoxaparin (Lovenox) | 12–24 hours before | Prophylactic dose: 12 hours. Therapeutic dose: 24 hours. |
Heparin (IV) | 4–6 hours before | Reversed with protamine. Rarely relevant for elective cosmetic patients. |
Fondaparinux (Arixtra) | 3–5 days before | Long half-life with no established reversal. Plan well ahead. |
2. Anti-Inflammatory Pain Medications (NSAIDs)
Non-steroidal anti-inflammatory drugs are among the most commonly used medications worldwide, and many patients take them daily without thinking twice. Unlike aspirin, these drugs reversibly inhibit the enzymes involved in blood clotting, meaning platelet function recovers as the drug leaves your system. However, the recovery time varies dramatically depending on which NSAID you take.
Short-Acting NSAIDs (Stop 24–48 Hours Before)
Medication | When to Stop | Notes |
Ibuprofen Rx (Motrin 600/800) | 24 hours | Most commonly encountered. |
Diclofenac (Voltaren, Cataflam) | 24 hours | Topical forms have minimal systemic absorption. |
Indomethacin (Indocin) | 24 hours | One of the most potent COX-1 inhibitors. |
Ketorolac (Toradol) | 24 hours | Among the most potent. Some surgeons avoid it post-op for facelifts. |
Ketoprofen, Flurbiprofen, Mefenamic acid, Etodolac | 24–48 hours | Extended-release forms may require longer hold. |
Intermediate-Acting NSAIDs (Stop 3–4 Days Before)
Medication | When to Stop | Notes |
Naproxen Rx (Naprosyn, Anaprox) | 3–4 days | Longer half-life. ER forms may need an extra day. |
Diflunisal (Dolobid) | 3–4 days | Salicylic acid derivative but reversible, unlike aspirin. |
Sulindac (Clinoril) | 3–4 days | Unique kidney-sparing property. |
Meloxicam (Mobic) | 3–4 days | Preferentially COX-2 selective at lower doses; some guidelines allow continuation at 7.5 mg. |
Long-Acting NSAIDs (Stop 1–3 Weeks Before)
Medication | When to Stop | Why So Long |
Piroxicam (Feldene) | 2–3 weeks | Half-life of 50 hours. The longest required hold of any standard NSAID. |
Oxaprozin (Daypro) | 2–3 weeks | Half-life of 40–56 hours. |
Nabumetone (Relafen) | 7–10 days | Partially COX-2 selective prodrug. |
What About Celecoxib (Celebrex)?
Celecoxib is a COX-2 selective inhibitor with minimal effect on platelet function. Some surgeons allow patients to continue it perioperatively and even use it as a preemptive pain management tool. A conservative approach is to stop it 2–3 days before surgery. Discuss with your surgeon.
3. Over-the-Counter Medications You May Not Realize Are Dangerous
This is where patients get caught off guard most often. Many common products you can buy at any pharmacy contain aspirin or NSAIDs, and many patients do not realize it.
Hidden Aspirin Products (Stop 7–14 Days Before)
Product | Hidden Ingredient | What Patients Often Don’t Know |
Excedrin (Extra Strength, Migraine) | Aspirin 250 mg | Patients think of it as "just a headache medicine." |
BC Powder / Goody’s Powder | Aspirin 650–845 mg | Very high aspirin dose per serving. |
Alka-Seltzer (Original) | Aspirin 325 mg | Alka-Seltzer Gold does NOT contain aspirin and is safe. |
Pepto-Bismol / Kaopectate | Bismuth subsalicylate | Breaks down into salicylic acid with antiplatelet effects. |
Common OTC Pain Relievers (Stop 7–14 Days Before)
Product | When to Stop | Notes |
Advil, Motrin IB (ibuprofen) | 7–14 days | Reversible COX inhibitor but still a risk for cosmetic surgery. |
Aleve (naproxen sodium) | 7–14 days | Longer-lasting antiplatelet effect than ibuprofen. |
Doan’s Pills (magnesium salicylate) | 7–14 days | Salicylate-based pain reliever. |
Combination cold/flu products | 7–14 days | Many contain hidden NSAIDs or aspirin. Always check the label. |
Other OTC Concerns
- Dextromethorphan (DXM) found in 125+ cough products like Robitussin DM, NyQuil, Mucinex DM: Stop 3–7 days before. Risk of serotonin syndrome when combined with surgical anesthesia agents.
- Pseudoephedrine/Phenylephrine (Sudafed, many sinus products): Stop 7 days before. These stimulant decongestants cause dangerous blood pressure spikes and heart rhythm problems under anesthesia.
- Diphenhydramine (Benadryl): Hold morning of surgery. Potentiates anesthesia effects.
⚠ Acetaminophen (Tylenol) is SAFE to take before surgery and is the preferred pain reliever during the preoperative period. Make sure your Tylenol product does not contain aspirin, ibuprofen, or other additives.
4. Herbal Supplements & Botanicals
This is perhaps the most underappreciated category. The American Society of Plastic Surgeons has noted that herbal supplement use among cosmetic surgery patients is remarkably high, yet many patients do not consider supplements to be medications. The ASA, AANA, and ASPS all recommend stopping all herbal supplements at least 2 weeks before elective surgery.
Herbs That Increase Bleeding Risk (Stop 2 Weeks Before)
Supplement | How It Causes Bleeding | Special Concerns |
Garlic supplements | Irreversibly inhibits platelet aggregation | Also causes low blood pressure |
Ginkgo biloba | Blocks platelet-activating factor (PAF) | Case reports of spontaneous bleeding in the brain |
Ginseng (Panax) | Inhibits platelet aggregation via thromboxane | Causes low blood sugar during fasting; has stimulant effects on the heart |
Turmeric / Curcumin | Dual-pathway anticoagulant: inhibits platelets AND clotting factors | One of the most popular supplements — very commonly overlooked |
Feverfew | Inhibits platelet activity | Must wean gradually — abrupt stop causes rebound headaches |
Dong quai | Contains coumarin (warfarin-like) compounds | Potentiates blood thinners |
Ginger (supplemental dose) | Inhibits thromboxane synthesis | Cooking amounts are generally safe |
Fish Oil / Omega-3 | Antiplatelet properties | Updated evidence: <3 g/day may be safe. >3 g/day: hold 1–2 weeks. Follow your surgeon’s preference. |
Saw Palmetto | COX inhibition increases bleeding time | Common in male patients |
Nattokinase / Lumbrokinase | Potent clot-dissolving enzymes | Among the highest-risk supplements available OTC |
Bilberry, Bromelain, Cat’s Claw, Dan Shen, Devil’s Claw, Evening Primrose Oil, Fenugreek, Flaxseed Oil, Horse Chestnut, Red Clover, White Willow Bark, Chamomile, Meadowsweet | Various antiplatelet and anticoagulant mechanisms | All should be stopped 2 weeks before surgery |
Herbs That Interact With Anesthesia (Stop 2–3 Weeks Before)
Supplement | Why It’s Dangerous | How Far in Advance to Stop |
St. John’s Wort | Alters how your body metabolizes anesthesia drugs. Risk of serotonin syndrome and cardiovascular collapse. | 2–3 weeks |
Kava | Potentiates sedation; causes liver damage. Prolongs the effects of anesthesia. | 2–4 weeks |
Valerian | Mimics benzodiazepine drugs. Abrupt withdrawal can cause symptoms similar to stopping Valium. | 2 weeks (taper gradually) |
Echinacea | Suppresses immune function with long-term use; interacts with anesthesia drug metabolism. | 2–4 weeks |
Ephedra / Ma Huang | Potent stimulant that can cause heart attack, stroke, and fatal heart rhythm disturbances. FDA banned in 2004 but still found in some imported products. | Stop completely — do not use |
Kratom | Acts on opioid receptors. Causes dramatic resistance to anesthesia (standard doses may fail entirely). | 2–3 weeks (taper for heavy users) |
Ashwagandha | Potentiates sedation; affects thyroid function; lowers blood pressure and blood sugar. | 2 weeks |
Goldenseal | Alters metabolism of anesthesia drugs, opioids, and sedatives — risk of drug toxicity. | 2 weeks |
Herbs With Cardiovascular Risk
- Licorice root: Stop 2 weeks before. Causes sodium retention, dangerously low potassium, and high blood pressure that can trigger fatal heart rhythms.
- Green tea extract (high-dose EGCG): Stop 2 weeks before. High doses can damage the liver and contain vitamin K. Regular green tea beverages are generally safe.
- Bitter orange: Stop 2 weeks before. Contains synephrine which raises blood pressure and heart rate.
5. Vitamins & Nutritional Supplements
Supplement | When to Stop | Why |
Vitamin E (>400 IU/day) | 2–3 weeks before | Inhibits platelet aggregation and antagonizes vitamin K. Major concern for facelifts, rhinoplasty, and eyelid surgery. |
High-dose Vitamin C (>1,000 mg) | 1 week before | May affect lab tests and has mild antiplatelet effects at very high doses. Valued post-surgery for healing. |
CoQ10 (Coenzyme Q10) | 2 weeks before | Can cause low blood pressure and may affect blood clotting. Interacts with anesthesia. |
Glucosamine | 2 weeks before | Aspirin-like effects on platelet aggregation and significant warfarin interaction. |
Biotin (Vitamin B7) | 48–72 hours before | FDA Safety Alert: Causes clinically significant false results on lab tests including heart enzyme tests. Common in hair/skin/nail supplements. |
DHEA | 2 weeks before | Hormonal precursor with estrogenic DVT risk and blood sugar effects. |
Chromium picolinate | 2 weeks before | Risk of severe low blood sugar when fasting for surgery. |
NAC (N-Acetyl Cysteine) | 1–2 weeks before | Antiplatelet and possible anticoagulant properties. |
Multivitamins | 1 week before | Many contain vitamin E, fish oil, herbal blends at variable doses. Safest to stop entire multivitamin. |
Iron supplements | Morning of surgery | GI irritation. Dark stools can be confused with GI bleeding. |
Melatonin | May continue | May actually reduce pre-surgical anxiety. Disclose to your anesthesia team. |
Safe to continue (with surgeon approval): calcium, magnesium, folate, vitamin D, vitamin B-complex, vitamin A (≤5,000 IU/day), zinc, collagen supplements, protein/amino acid supplements, and probiotics.
6. Weight Loss & Diet Medications
This is one of the fastest-evolving areas in pre-surgical medicine, driven by the explosion of GLP-1 receptor agonist medications. As a cosmetic surgeon in South Florida, I see patients on these medications every single day.
GLP-1 Receptor Agonists: Ozempic, Wegovy, Mounjaro & More
The core risk is pulmonary aspiration. GLP-1 medications slow down how quickly your stomach empties. This means that even after following standard fasting instructions (nothing after midnight), you may still have significant food or liquid remaining in your stomach when you go under anesthesia. If that material enters your lungs, it can be life-threatening.
Guidelines have evolved significantly. The October 2024 multi-society guidance from the ASA, AGA, and other societies now takes a risk-stratified approach rather than a blanket recommendation to stop.
Medication | Brand Names | Dosing | If Holding: When to Stop |
Semaglutide (injectable) | Ozempic, Wegovy | Weekly | 1 week before |
Semaglutide (oral) | Rybelsus | Daily | Day of surgery |
Tirzepatide | Mounjaro, Zepbound | Weekly | 1 week before |
Liraglutide | Victoza, Saxenda | Daily | Day of surgery |
Dulaglutide | Trulicity | Weekly | 1 week before |
Exenatide | Byetta (daily), Bydureon (weekly) | Varies | Day of (Byetta) / 1 week (Bydureon) |
My Approach at Evolution MD
I evaluate each patient’s GLP-1 risk individually based on their dose, whether they are in the dose escalation phase or on a stable maintenance dose, and whether they have any GI symptoms like nausea, bloating, or vomiting. Patients at higher risk follow a 24-hour liquid-only diet before surgery, and we may use gastric ultrasound on the day of surgery to verify their stomach is empty. For diabetic patients, we coordinate with their endocrinologist.
Other Weight Loss Medications
Medication | When to Stop | Why |
Phentermine (Adipex-P, Lomaira) | 2+ weeks before | Stimulant that depletes stress hormones, causing dangerous blood pressure drops under anesthesia. Extremely common in cosmetic patients. |
Phentermine/topiramate (Qsymia) | Taper over 2+ weeks | Cannot stop suddenly — topiramate withdrawal can trigger seizures. |
Naltrexone/bupropion (Contrave) | 72+ hours before | Naltrexone blocks opioid pain medications. Most cosmetic surgeries require opioids post-operatively. |
Orlistat (Xenical, Alli) | 1–2 weeks before | Blocks fat absorption, which means it also blocks absorption of vitamin K needed for blood clotting. |
OTC diet pills, fat burners, thermogenics | 1–2 weeks before | May contain undisclosed stimulants, caffeine, or banned substances. Always disclose these to your surgical team. |
7. Hormonal Medications & Blood Clot Risk
Venous thromboembolism, including deep vein thrombosis (DVT) and pulmonary embolism (PE), is one of the most feared complications in cosmetic surgery. The risk is highest with longer procedures, combined procedures, and abdominoplasty. Estrogen-containing medications significantly compound this risk.
Estrogen-Containing Medications (Stop 2–4 Weeks Before)
Medication Type | Examples | Key Details |
Combined birth control pills | Yaz, Ortho Tri-Cyclen, Lo Loestrin, many others | Increase blood clot risk 2–9 fold. Use barrier methods or progestin-only alternatives during this period. |
Vaginal ring | NuvaRing | Similar or higher clot risk than pills. |
Estrogen patches | Climara, Vivelle-Dot | Still carry clot risk despite being transdermal. |
Oral HRT (hormone replacement) | Premarin, Estrace, Prempro | Higher clot risk than transdermal estrogen. |
Tamoxifen, Raloxifene | Nolvadex, Evista | Selective estrogen receptor modulators. 2–3 fold clot risk. |
Progestin-only methods are safe to continue: This includes the mini-pill (norethindrone), hormonal IUDs (Mirena, Kyleena), and the implant (Nexplanon). These do not increase blood clot risk and are a good alternative while your estrogen-containing medication is paused.
Testosterone: Increasingly common in my practice, particularly in male patients seeking body contouring. Testosterone raises hematocrit (thickens the blood), increasing clot risk. We require a hematocrit check before surgery, and if it is above 52%, we may need to delay surgery or perform phlebotomy.
8. Diabetes Medications
We always schedule diabetic patients as the first case of the day to minimize fasting time and reduce the risk of blood sugar complications.
SGLT2 Inhibitors: The Highest-Risk Oral Diabetes Medications
These medications carry a unique and dangerous risk: euglycemic diabetic ketoacidosis (eDKA). This means you can develop a life-threatening acid buildup in your blood even when your blood sugar reads normal or near-normal, making it extremely difficult to diagnose.
Medication | When to Stop | Brand Names |
Empagliflozin | 3 days before | Jardiance |
Dapagliflozin | 3 days before | Farxiga |
Canagliflozin | 3 days before | Invokana |
Ertugliflozin | 4 days before | Steglatro (longer half-life) |
Other Diabetes Medication Guidance
Medication | What to Do | Key Details |
Metformin (Glucophage) | Hold day of surgery | Risk of lactic acidosis. Resume when eating normally. |
Glipizide, Glimepiride (sulfonylureas) | Hold day of surgery | Risk of low blood sugar during fasting. |
Glyburide (DiaBeta) | Hold 48–72 hours before | Longest-acting sulfonylurea with highest low blood sugar risk. |
DPP-4 inhibitors (Januvia, Tradjenta, etc.) | May continue | Low risk; glucose-dependent mechanism. |
Basal insulin (Lantus, Levemir, Tresiba) | Reduce to 50–80% of dose | Never completely stop in Type 1 diabetes. |
Mealtime insulin (Humalog, NovoLog) | Hold while fasting | Resume with meals after surgery. |
9. Psychiatric & Neurological Medications
This is a nuanced category. The guiding principle is that most psychiatric medications should be continued through surgery, because the risks of psychiatric decompensation from sudden withdrawal almost always outweigh the perioperative drug interaction risks. However, there are important exceptions.
Medications Requiring Special Management
Medication Category | What to Do | Why |
MAOIs (Nardil, Parnate, Marplan, Emsam patch) | Taper over 2 weeks before surgery OR continue with MAO-safe anesthesia protocol | Dangerous interactions with many anesthesia drugs. Can cause fatal serotonin syndrome or hypertensive crisis. Must be managed by both psychiatrist and anesthesiologist. |
Lithium (Eskalith, Lithobid) | Hold 24–72 hours before major surgery | Very narrow safety window. Dehydration from fasting can push levels into the toxic range. Prolongs effects of muscle-paralyzing drugs used in anesthesia. |
Valproic acid (Depakote) | Continue — but check platelets and coagulation labs pre-op | Can lower platelet count and impair platelet function in 3–21% of patients. Never stop abruptly (seizure risk). |
Clozapine (Clozaril) | Hold 12 hours before surgery | Unique metabolic, cardiac, and blood cell risks requiring close monitoring. |
Medications That Are Safe to Continue
- SSRIs (Prozac, Zoloft, Lexapro, etc.): Continue. They have a modest effect on platelet function but the risk of stopping (withdrawal, depression relapse) far outweighs the small bleeding increase.
- SNRIs (Effexor, Cymbalta, Pristiq): Continue. Do not stop venlafaxine (Effexor) abruptly.
- Benzodiazepines (Xanax, Klonopin, Ativan, Valium): Take your usual morning dose with a sip of water. Abrupt withdrawal can cause seizures.
- ADHD stimulants (Adderall, Vyvanse, Ritalin): Current evidence supports continuing. Inform your anesthesiologist.
- Most antipsychotics: Continue. Preoperative ECG is recommended.
- Gabapentin/Pregabalin (Neurontin, Lyrica): Continue. Often used perioperatively for pain management.
10. Recreational Substances
Nicotine: The Single Most Critical Substance for Plastic Surgery
All forms must be stopped 4–6 weeks before AND after surgery. This includes cigarettes, e-cigarettes, vapes, JUUL, nicotine patches, nicotine gum, lozenges, chewing tobacco, cigars, hookah, and secondhand smoke exposure.
In my practice, we require a nicotine/cotinine blood or urine test on the day of surgery. If it is positive, surgery is cancelled and rescheduled. I know this sounds strict, but the consequences are simply too severe.
Nicotine causes profound constriction of blood vessels that dramatically decreases blood flow and oxygen delivery to healing tissues. Patients who use nicotine have up to 6–7 times the complication risk. In cosmetic surgery, this means skin flap death in facelifts (the skin literally dies and turns black), tissue breakdown along tummy tuck incision lines, and nipple loss in breast lifts and reductions. Vaping carries the same risk as traditional cigarettes.
Other Recreational Substances
Substance | When to Stop | Why It’s Dangerous for Surgery |
Alcohol | 2–4 weeks (minimum 48 hours) | Impairs blood clotting, liver function, and wound healing. Chronic users may require higher anesthesia doses. Withdrawal in dependent patients can be fatal. |
Marijuana / Cannabis / THC (all forms) | 2–4 weeks | Significantly increases anesthesia requirements; causes airway spasm; increases post-op pain; unpredictable heart rate effects. |
CBD oil / products | 2 weeks | Potent drug metabolism inhibitor. Affects how your body processes 60% of all medications. Can significantly increase blood thinner effects. |
Cocaine | 2+ weeks (acute use = surgery cancelled) | Risk of heart attack, stroke, and fatal arrhythmias on the operating table. 31%+ of cocaine-positive patients have dangerous hemodynamic instability during surgery. |
MDMA / Ecstasy | 1–2 weeks | Risk of serotonin syndrome, fatal overheating, and cardiovascular collapse under anesthesia. |
Kratom | 2–3 weeks (taper) | Opioid-like substance that causes dramatic resistance to anesthesia. Standard doses may not work at all. |
Anabolic steroids | 2–4+ weeks | Thickens blood (polycythemia), increasing clot risk. Common in body contouring and gynecomastia patients. |
Poppers (amyl/butyl nitrite) | 1–2 weeks | Dangerous blood pressure drops and a condition where blood cannot carry oxygen properly. |
11. Other Important Medications & Substances
Isotretinoin (Accutane)
The traditional recommendation has been to wait 6 months after stopping isotretinoin before any cosmetic surgery, based on concerns about abnormal scarring. However, evolving evidence since 2017 suggests this may be overly conservative for most procedures. The evidence base for the 6-month rule is surprisingly thin (only 11 patients across 3 studies from the 1980s). A prospective rhinoplasty study of 350 patients showed no abnormal healing. The practical approach: discuss individually with your surgeon. Deep dermabrasion and fully ablative laser treatments should still be delayed.
Blood Pressure Medications
- ACE inhibitors/ARBs (lisinopril, losartan, etc.): Hold morning of surgery per 2024 guidelines to reduce risk of low blood pressure under anesthesia. Continue if prescribed for heart failure.
- Beta-blockers (metoprolol, atenolol, etc.): Continue. Never stop abruptly — rebound high blood pressure and heart rate.
- Clonidine: Continue. Abrupt stop causes severe rebound high blood pressure.
- Diuretics (furosemide, HCTZ, etc.): Hold morning of surgery to prevent dehydration.
Statins
Continue all statins (atorvastatin, rosuvastatin, etc.) through surgery. They have anti-inflammatory benefits and abrupt discontinuation may actually increase risk.
Thyroid Medications
Continue levothyroxine (Synthroid) and liothyronine (Cytomel). Take morning of surgery with a sip of water. Essential for metabolic function and wound healing.
Biologics & Immunosuppressants
If you are on biologic medications for conditions like rheumatoid arthritis, psoriasis, or inflammatory bowel disease, these generally need to be held for 1–2 dosing intervals before surgery due to infection and wound healing concerns. Timing varies by medication: etanercept (Enbrel) 1 week, adalimumab (Humira) 2 weeks, infliximab (Remicade) 4–6 weeks. Coordinate with your rheumatologist or prescribing specialist.
Topical Skin Products Near the Surgical Site (Stop 1–2 Weeks)
Discontinue these at the planned incision area: retinoids (tretinoin, adapalene, tazarotene), chemical peels, glycolic acid, other AHA/BHA products, hydroquinone, and benzoyl peroxide. These thin the outer layer of skin and impair wound healing at the surgical site.
The Bottom Line
Preparing for cosmetic surgery is not just about choosing the right procedure or the right surgeon. It is about giving your body the best possible conditions for a safe surgery and a beautiful recovery. The medications, supplements, and substances on this list can quietly sabotage even the most technically perfect operation.
At Evolution MD, our PREP-AI preoperative system screens for every single category above, using brand names that patients actually recognize. We believe that proactive, thorough pre-surgical preparation is the foundation of exceptional outcomes.
My advice: Start this conversation with your surgeon early — ideally at your initial consultation. Bring a complete list of everything you take, including vitamins, supplements, herbal products, weight loss medications, and recreational substances. Do not be embarrassed. We are not judging you. We are trying to keep you safe.
And remember: Tylenol (acetaminophen) is your friend. It is the one pain reliever that is safe throughout the preoperative period.
About the Author
Dr. Cesar Velilla, MD is the Medical Director of Evolution MD, a board-certified cosmetic surgery practice in Miami, Florida. He completed Harvard’s Executive Education Program in Artificial Intelligence for Healthcare and is the founder of MDGeniusAI, a healthcare technology company developing AI-powered platforms for patient safety and surgical risk assessment. Dr. Velilla combines clinical excellence with cutting-edge technology to deliver the safest possible surgical experience for his patients.
Medical Disclaimer
This article is for educational purposes only and does not constitute medical advice. The information provided reflects general guidelines based on current medical literature as of February 2026. Individual patient circumstances may vary. Always follow the specific preoperative instructions provided by your surgical team. Never start, stop, or change any medication without consulting your prescribing physician. If you are considering cosmetic surgery, schedule a consultation with a board-certified surgeon to receive personalized guidance.
