Drug-alcohol interactions: Can ginger duck, sesame oil chicken, and cold medicine be eaten together?

As the weather turns cold, a family gathering around a steaming pot of braised chicken with rice wine, ginger duck, or sesame oil chicken is a warming ritual for many during winter. However, if you are taking medication during this time—especially cold medicine, painkillers, fever reducers, blood pressure medication, blood sugar medication, or sleeping pills—the safest approach is...Avoid these dishes containing alcohol first.。

The reasons are not as vague as "it's bad to take alcohol and medicine together." The position of the Hong Kong Department of Health's Drug Office is very direct:"Regardless of what medication you are taking, you should avoid drinking alcohol, as alcohol can increase or decrease the effectiveness of many medications."(See<Drug interactions with food and beverages>) The Department of Health's "Living a Healthy New Direction" also includes "Taking medicationListed asOne of the situations in which drinking alcohol should be avoidedMore often than not, this point is often overlooked:The statement that "the alcohol will evaporate if boiled for too long" is incorrect.Even if you stew it for more than two hours, there will still be alcohol left in the pot; and many people think that "it's okay to take medicine a few hours later", but that may not be safe either.

This article will first state the conclusion, then explain each point in detail: three ways alcohol and medications interact, how much alcohol remains after stewing, a risk comparison between common medications and alcohol, why caution is needed with Chinese medicinal herbs in medicinal cuisine, and which symptoms require immediate medical attention. For dietary arrangements during a cold, please refer to the information on this website.Can I drink milk and eat eggs when I have a cold and fever?〉。

First, the conclusion: While taking medication, it is recommended to avoid dishes containing alcohol.

"Foods containing alcohol" are not just common nourishing dishes like braised chicken with rice wine, ginger duck, and sesame oil chicken. These are some of the dishes that Hong Kong and Guangdong families often eat in winter.Drunken chicken, chicken cooked in Shaoxing wine, steamed chicken with Shaoxing wine, and clams cooked in wine.This includes some lamb stew recipes and dishes that are served with wine poured on top and then set on fire, all of which fall into the same category.

The judgment principle is actually very simple:

It's not that eating just one bite will cause a problem—the level of risk depends on the type of medication, dosage, alcohol tolerance, and individual liver and kidney metabolism capacity. However, precisely because these factors are difficult to estimate independently,"Avoiding alcoholic beverages while taking medication" is the simplest and least calculation-intensive approach.And one thing is certain: stewing cannot completely remove the alcohol, so the statement "it's been cooked for so long, it should be fine" is not true.

II. Why does "alcohol + medicine" cause problems? Three modes of action

Compiled by the National Institute on Alcohol Abuse and Alcoholism (NIAAA)(Alcohol-Medication Interactions)There are three main ways in which alcohol and drugs interact. Understanding these three ways will help explain why the risks are difficult to predict:

1. Alcohol alters drug metabolism.The liver is responsible for breaking down most drugs. Alcohol can speed up or slow down the work of these enzymes, affecting the concentration of drugs in the bloodstream.Too high (increased side effects and toxicity) or too low (insufficient efficacy).。
2. The drug, in turn, affects the absorption and metabolism of alcohol.Some medications can increase blood alcohol concentration, meaning you can get even more drunk from the same drink.
3. Alcohol alters the pharmacological effects of drugs.The most typical example is central nervous system inhibition.OverlayAlcohol itself causes drowsiness and slows reaction time. Sedatives, hypnotics, antihistamines, and opioid analgesics have the same effect. The combined effect is not one-to-one, but rather significantly amplified.

Who is at particularly high risk?The NIAAA points out that people aged 65 and older are a high-risk group—on the one hand, older adults often take multiple medications simultaneously (the agency estimates that about 80% of people aged 65 and older have taken medications that may interact with alcohol in the past year), and on the other hand, aging causes alcohol and medications to remain in the body for longer, thus extending the "window" for interaction. For related dietary and nutritional arrangements for older adults, please refer to the information on this website.Healthy Foods for Seniors〉。

III. Three things that are most easily overlooked

(i) "Boiled food loses its alcohol content" is a misunderstanding.

Many people believe that alcohol has a boiling point of only about 78°C and will evaporate completely after boiling. The reality is that alcohol reacts with water in the pot to form...AzeotropeBoth evaporate and remain together, soThe fading of the wine flavor does not mean the alcohol has disappeared.United States Department of Agriculture (USDA)Table of Nutrient Preservation Factors, 6th EditionThe cooking experiments included and published by Augustin et al. measured the following proportions:

in other words:To reduce the alcohol content to below 51 TP4T, it needs to be simmered for more than two and a half hours.Many nourishing dishes are prepared by adding wine midway through cooking or even just before serving to enhance the aroma, resulting in a higher residual alcohol content. While "pouring wine on fire" may seem bold, about 75% of the alcohol remains in the dish. The size of the pot, whether it was covered, and whether it was stirred during cooking also affect the final amount of alcohol remaining.

(ii) Some medications already contain alcohol or sedative ingredients.

NIAAA Medication Safety Manualremind,Some medications can have an alcohol content as high as approximately 101 TP4T.Cough syrups and laxatives are among the more concentrated types of alcohol consumed. This means that even if you "didn't drink alcohol," the cough syrup itself may be providing the alcohol. Additionally, many over-the-counter cold and flu medications, as well as anti-nausea and anti-vomiting medications, contain alcohol.First-generation antihistamines(For example, chlorpheniramine and diphenhydramine) can cause drowsiness and slowed reaction time; consuming alcoholic beverages amplifies the sedative effects of both. Reading the ingredients and warnings on the label before taking any medication is an easy step to take.

(iii) Alcohol and medicine do not need to be taken at the same time, as they can still affect each other.

NIAAA clearly stated thatEven if alcohol and drugs are not taken at the same time, they can still produce harmful interactions.The reason lies in the first and third mechanisms discussed in Section 2—the drug alters the liver's metabolic rate, and alcohol alters the drug's effects; these effects can persist for a period of time after medication. Therefore, "eating sesame oil chicken three or four hours after taking medication" cannot guarantee safety; similarly, "eating a tonic first and then taking medication a few hours later" is also unsafe.

IV. Common Medications and Alcohol: Risk Comparison Table

The table below summarizes common medications in Hong Kong that require special attention when used with alcohol (the categories of "central nervous system depressant effect, disulfiram-like reaction, hepatotoxicity, and bleeding risk" are for reference only).Clinical Practice Guidelines in British Columbia, CanadaThis is not a checklist for self-diagnosis, but rather a guide to help you know what to ask when consulting a doctor or pharmacist.

For comprehensive management of blood pressure and cardiovascular health, please refer to the information on this website.Cardiovascular problem prevention>; For information on weight, waist circumference, and metabolic risk, please refer to <Waist circumference and metabolic syndrome>; For liver health and daily maintenance, please refer to <Liver health and lifestyle〉。

Fifth, the Chinese medicinal herbs in medicinal cuisine can also interact with Western medicines.

Winter medicinal soups, tonic soups, and herbal stews often emphasize more than just the alcohol; they also...Chinese medicinal materials themselvesMedicinal herbs also have pharmacological effects and can interact with Western medicines—according to the Hong Kong Department of Health's Office of Chinese Medicine Regulation.Instructions for purchasing Chinese medicineA reminder to those who are taking traditional Chinese medicine and other medications:We must tell the TCM doctorBecause when different drugs are used together, the efficacy may increase or decrease, and adverse side effects may also occur.

The most noteworthy example is anticoagulants. Hospital Authority Chief Pharmacist Choi Chun-ming stated in […].When a pharmacist meets a pharmacistThe article points out that taking...Warfarin (thin blood pill)patientsDo not take Chinese medicinal herbs, prepared Chinese medicines, herbal decoctions, or herbal teas indiscriminately.：

• Salvia miltiorrhiza, Leonurus japonicus, Codonopsis pilosula, Angelica sinensisAntiplatelet agents, such as those with antiplatelet activity, can interact with the anticoagulant effect of warfarin.OverlayThis increases the risk of bleeding.
• Coptis chinensis and Phellodendron amurenseIt will increase the concentration of warfarin in the blood;
• Known as the "King of Herbs"GinsengOn the contraryreduceWarfarin increases the risk of blood clotting.

Regarding the question of "how long should there be between traditional Chinese medicine and Western medicine"—the Hospital Authority stated in its report...How much do you know about the interactions between Chinese and Western medicines?The suggestion is...Generally, there should be at least one to two hours between them.But here's a crucial addition:This interval only prevents drug interactions due to direct contact in the stomach; it cannot prevent any potential interactions that occur after the drugs are absorbed into the body.Therefore, maintaining a time interval is one way to reduce risk, but it does not mean that "it is safe once enough time has passed." Depending on the patient's condition, healthcare professionals may also need to review and monitor drug responses, use medication cautiously, adjust dosages, and even avoid concurrent use.

Traditional Chinese medicine's perspective on the spleen and stomach, and its application in daily health maintenance through medicinal diets, can be further explored in the website's related articles.Traditional Chinese Medicine Gastrointestinal Health Care〉。

6. If you experience these symptoms, please seek medical attention immediately.

The effects of drug-alcohol interactions can be mild or severe. The following situations...Do not stay at home to observe。

Seek immediate emergency medical assistance (call 999 or go to the emergency room):

• Breathing becomes slow, shallow, difficult, or you feel breathless;
• Uncomfortable drowsiness, unresponsiveness, confusion, and slurred speech;
• Coma, convulsions;
• Severe hypoglycemia symptoms include: cold sweats, rapid heartbeat, hand tremors, and altered consciousness (diabetic patients should be especially vigilant, as these symptoms can easily be mistaken for drunkenness).
• Irregular heartbeat and chest pain.

Seek medical attention as soon as possible (do not rely solely on home remedies):

• Facial flushing, headache, nausea and vomiting, rapid heartbeat (possibly a disulfiram-like reaction);
• Persistent upper abdominal pain, vomiting blood, and passing black, tarry stools (warning sign of gastrointestinal bleeding).
• Yellowing of the skin or whites of the eyes, dark urine, and unusual fatigue (warning signs of liver damage);
• Existing diseases are significantly worsened, for example, blood pressure or blood sugar suddenly becomes difficult to stabilize;
• Symptoms persist or worsen after stopping alcohol consumption or taking supplements.

When seeking medical treatment, please inform the doctor truthfully.What did you eat, how much did you drink, and what medications are you currently taking?(Including traditional Chinese medicine, prepared medicines, and health supplements), and the timing. Healthcare professionals need this information to make a judgment. If you have any questions about medication, please call the Department of Health's health education hotline at 2833 0111, or consult your family doctor or pharmacist directly.

VII. Practical methods for taking supplements while taking medication

1. First, check if it contains alcohol.Sesame oil chicken, rice wine chicken, ginger duck, drunken chicken, chicken cooked in yellow wine, clams cooked in wine, and flambéed dishes are all considered alcoholic dishes. While taking medication, choose the alcohol-free version.
2. They proactively requested "no more alcohol / no alcohol".Many restaurants and home cooking methods allow alcohol to be added at the last stage, and you can change it to not adding it if you ask; the soup base is made by simmering herbs and ingredients to bring out the flavor, and it is just as warming.
3. Use a non-alcoholic stew instead.Clear chicken soup, yam and lotus seed soup, papaya soup, and fish soup are all nutritious hot soups that can be used as warming options in winter. During a cold, the body needs sufficient hydration and nutrients, and these soups are suitable supplements.
4. You should also ask about the medicinal soup.If you are taking blood thinning pills, blood pressure medication, blood sugar medication, antidepressants, or sleeping pills, consult a doctor or pharmacist before consuming medicinal soup, as the problem may lie with the herbs, not just the alcohol.
5. Do not stop or reduce the dosage of the medication.Stopping or reducing medication on your own in exchange for a nourishing meal is far more costly than the meal itself. Any adjustments to medication must be made by a doctor.
6. Read the labels and provide accurate information.Some cough syrups and oral liquid preparations contain alcohol, which will be listed on the label; when you see a doctor or pharmacist, please explain that the medicine, prepared medicine, and health products are all included.
7. Do not drive after eating food containing alcohol.Even if you only eat dishes containing alcohol but don't drink alcohol, the alcohol may still be absorbed.

Supplementation itself is a wonderful aspect of dietary culture—the key point is never "whether or not to supplement," but rather...Patch at the right time, with the right versionDuring the period of taking medication, choosing to abstain from alcohol preserves warmth and nutrition while avoiding the unpredictable risks associated with the medication.

8. Frequently Asked Questions (FAQ)

How long after taking cold medicine can I drink alcohol or eat food containing alcohol?

There is no single safe time that applies to all medications. The NIAAA clearly states that alcohol and medication...Even if they are not taken at the same time, they may still interact.Because medications can alter the liver's metabolic rate, and alcohol can change the effects of medications, these effects can persist for some time after taking the medication. A safer approach is...Avoid alcoholic foods throughout the entire course of medication.If you absolutely need to know the specific details of a particular medication, please bring the medication to your doctor or pharmacist for consultation; do not estimate the number of hours yourself.

The sesame oil chicken has been stewed for two or three hours, so the alcohol must have evaporated long ago, right?

No. Alcohol will azeotropically react with water in the pot, so a weaker flavor doesn't mean the alcohol has disappeared. According to the USDA, approximately 251 TP4T remains after simmering for 1 hour, and approximately 101 TP4T after 2 hours.To reduce the temperature to approximately 51 TP4T, it needs to be simmered continuously for more than 2.5 hours.If the alcohol is added midway through cooking or just before serving, the residual percentage will be even higher; the "pouring alcohol and setting it on fire" method will still leave approximately 751 TP4T.

Can you ingest alcohol just by drinking soup and not eating meat?

Yes. Alcohol is water-soluble and will dissolve in the broth. In fact, it's easier to ingest alcohol along with the broth than with the meat. Therefore, "only drinking the broth and not eating the meat" does not reduce alcohol intake.

It should be okay to eat just one or two bites, right?

There may not be any discomfort, but the level of risk depends on the type of medication, dosage, alcohol tolerance, and individual liver and kidney metabolism capacity—factors that are difficult to estimate on your own. When a relatively safe option (such as a non-alcoholic version) is available, there is no need to gamble on a risk that is difficult to calculate; especially for those taking blood pressure medication, blood sugar medication, sleeping pills, or blood thinners.

How long should there be between taking traditional Chinese medicine and Western medicine for safety?

The hospital authority's recommendation isGenerally, there should be at least one to two hours between them.However, this interval only prevents the medications from interacting directly in the stomach.Drug interactions after absorption into the body cannot be avoided.(For example, the effects produced by liver enzyme metabolism). Therefore, the time interval does not equal insurance; the safest approach is to consult a doctor or pharmacist before taking both Chinese and Western medicines simultaneously.

Can I eat medicinal cuisine to nourish myself while taking traditional Chinese medicine?

It depends on the herbs and the medications you are currently taking. Herbs themselves have pharmacological effects. The Office of Chinese Medicine Regulation of the Department of Health reminds people that if they are taking Chinese medicine while also taking other medications, they must inform the Chinese medicine practitioner, as this may enhance or weaken the efficacy of the medicine or cause adverse side effects. If you are taking prescription medications, the most practical approach is to tell your doctor, pharmacist, or Chinese medicine practitioner the ingredients you plan to use for their assessment.

Can people taking warfarin eat medicinal cuisine?

It is not recommended to make this decision on your own. The Hospital Authority points out that patients taking warfarin...Do not take Chinese medicinal herbs, prepared Chinese medicines, herbal decoctions, or herbal teas indiscriminately.Danshen, Leonurus japonicus, Codonopsis pilosula, and Angelica sinensis can increase the risk of bleeding when combined with warfarin; Coptis chinensis and Phellodendron chinense can increase the blood concentration of warfarin; and ginseng can reduce the efficacy of warfarin. Consult your doctor or pharmacist before taking any soup or supplement.

If you have a cold and want to eat something warming, are there any safe options?

Yes. Hot, non-alcoholic foods such as clear chicken soup, fish soup, yam and lotus seed soup, vegetable soup, and porridge can also provide hydration, calories, and protein. During a cold, you need plenty of fluids and easily digestible nutrients; these options are warming and don't involve alcohol. For more information on dietary arrangements during a cold, please refer to the website's [link/section].Can I drink milk and eat eggs when I have a cold and fever?> For comprehensive information on immunity and daily protection, please see the website.Immune System HealthCategory page.

What symptoms should prompt you to seek medical attention immediately?

Slow or difficult breathing, unusual drowsiness that cannot be woken up, confusion, coma or convulsions, significantly irregular heartbeat or chest pain should all be noted.Call 999 immediately or go to the emergency room.If symptoms such as facial flushing, headache, vomiting, rapid heartbeat, black stools, vomiting blood, upper abdominal pain, or yellowing of the skin and whites of the eyes occur, then...Seek medical attention as soon as possibleAnd truthfully tell the medical staff what you have eaten, what you have drunk, and what medications you are currently taking.

Source of information

1. Hong Kong Department of Health, Drug Office— Drug interactions with food and beverages("Avoid alcohol consumption regardless of the medication you are taking"; interactions between alcohol, potassium-rich foods, tyramine-rich foods, etc., and medications)
2. Hong Kong Department of Health's "Living a Healthy New Direction" Reduce alcohol-related harms(Taking medication is listed as a reason not to drink alcohol; alcohol is a Group 1 carcinogen and there is no safe amount to drink.)
3. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) — Alcohol-Medication Interactions: Potentially Dangerous Mixes(Three interaction mechanisms, risks to older adults, and risks of alcohol, opioids, and benzodiazepines overdose)
4. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) — Harmful Interactions: Mixing Alcohol with Medicines(Some medications have an alcohol content of up to approximately 101 TP4T, and cough syrups have a higher concentration; "Alcohol and medications may still interact harmfully even if they are not taken at the same time"; risks for the elderly; risks for women)
5. Clinical Practice Guidelines in British Columbia, Canada Appendix C: Common Types of Interactions Between Alcohol and Medications(Central depression superposition, disulfiram-like reaction, hepatotoxicity, bleeding risk, acute/chronic differences between warfarin and alcohol)
6. Hong Kong Hospital Authority's "Cooperation" How much do you know about the interactions between Chinese and Western medicines?(Traditional Chinese medicine and Western medicine should generally be taken at least one to two hours apart; this can only avoid direct contact with the stomach, but cannot prevent the interaction after absorption.)
7. Hong Kong Hospital Authority (Sing Pao column, Chief Pharmacist Choi Chun-ming) — When a pharmacist meets a pharmacist: Be mindful of interactions when using traditional Chinese medicine and Western medicine in combined treatment.(Interactions between warfarin and danshen, motherwort, codonopsis, angelica, coptis, phellodendron, and ginseng)
8. Hong Kong Consumer Council — List of contraindications for medication(Paracetamol increases the risk of liver toxicity; sulfonylureas increase the risk of hypoglycemia; metronidazole causes a disulfiram-like reaction; traditional Chinese medicine and Western medicine may interact when taken together.)
9. Hong Kong Department of Health, Office of Chinese Medicine Regulation— Instructions for purchasing Chinese medicine(If you are taking other medications while using traditional Chinese medicine, you must inform your TCM practitioner; the efficacy of the medicine may be enhanced or weakened, and it may also cause adverse side effects.)
10. United States Department of Agriculture (USDA) — Table of Nutrient Retention Factors, Release 6(Percentage of alcohol residue after cooking)
11. Augustin J, Augustin E, Cutrufelli RL, Hagen SR, Teitzel C. Alcohol retention in food preparation. Journal of the American Dietetic Association. 1992;92(4):486–488. (The original study of alcohol residue data in the table above)
12. The UK National Health Service (NHS) — Paracetamol for adults(Parachlorpheniramine and alcohol: Moderate alcohol consumption is generally safe, but may not be suitable for those with liver problems or those who are dependent on alcohol/binge drinking)

Note: The drug risks cited in this article are mostly observations based on specific drugs, dosages, and populations. Actual situations vary from person to person and should not be directly extrapolated. Drug ingredients and names may differ in different regions; please refer to the label on the medication bag and the instructions of your doctor or pharmacist before use.