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What alcohol should you not drink at the same time?

5 min read

Studies show that combining alcohol with certain substances can lead to severe health complications and even death. While myths persist about mixing different types of alcoholic drinks, understanding what alcohol should you not drink at the same time—and what you should avoid combining it with—is vital for safeguarding your health and making responsible choices.

Quick Summary

The most dangerous alcohol combinations involve mixing with medications or stimulants like caffeine, rather than different types of alcoholic beverages.

Key Points

  • Medications and Alcohol: Never mix alcohol with prescription or over-the-counter medication, as this can cause dangerous drug interactions, severe side effects, and increase the risk of liver damage and overdose.

  • Stimulants and Alcohol: Combining alcohol with energy drinks or other stimulants is highly risky because the caffeine masks the alcohol's depressant effects, leading to overconsumption, alcohol poisoning, and cardiovascular stress.

  • Quantity Over Variety: The total amount of alcohol consumed is more important than mixing different types (beer, wine, liquor). Myths about mixing types are often based on the overconsumption that occurs when switching to higher-proof drinks.

  • Congeners and Hangovers: Darker liquors often contain more congeners, which can contribute to more severe hangovers for some individuals, though mixing them is not inherently more dangerous.

  • Carbonation's Role: Alcohol mixed with carbonated beverages is absorbed faster, causing the onset of intoxication to be quicker.

  • Sugary Mixers: The sweetness of mixers can mask alcohol's taste, leading to faster consumption and higher overall intake without realizing how much you've had.

In This Article

Mixing Alcohol with Medications: A Deadly Combination

By far the most dangerous combination is mixing alcohol with medications, whether prescription or over-the-counter. Alcohol can significantly amplify or diminish the effects of a drug, leading to unpredictable and potentially fatal consequences. For example, both alcohol and some sedatives are metabolized by the same liver enzymes (cytochrome P450). If the liver is busy processing alcohol, the sedative is not broken down as effectively, resulting in a higher concentration of the drug in the body and enhanced sedative effects. This can lead to reduced excretion, dangerously high drug levels, and enhanced effects that can be deadly. The U.S. Food and Drug Administration (FDA) specifically warns against mixing alcohol with high-risk substances.

Common Medications to Avoid Mixing with Alcohol:

  • Painkillers: Both opioid pain relievers (like Vicodin) and over-the-counter options (like acetaminophen) can cause severe liver damage when combined with alcohol.
  • Sedatives and Anti-anxiety Medications: Benzodiazepines are particularly dangerous, as combining them with alcohol can lead to excessive drowsiness, respiratory depression, and overdose.
  • Antidepressants: Alcohol can intensify the side effects of antidepressants, including drowsiness and impaired judgment, and may worsen feelings of depression.
  • Amphetamines: Mixing stimulants like Adderall with alcohol is also risky, masking the depressant effects of alcohol and encouraging overconsumption.

The Perils of Mixing Alcohol and Stimulants

Another highly risky combination is mixing alcohol with stimulants, most commonly found in energy drinks containing caffeine and taurine. The danger lies in how the stimulant masks the depressant effects of alcohol. You may feel less intoxicated than you actually are, leading you to drink more and more quickly. This increases the risk of severe intoxication, alcohol poisoning, and poor decision-making. Furthermore, the combination can place significant stress on the cardiovascular system, with studies linking the mix to cases of cardiac arrest. The false sense of alertness makes it easier to engage in risky behaviors, including driving while over the legal limit, which is a common and dangerous consequence.

The Truth About Mixing Different Drink Types

Contrary to popular wisdom encapsulated in sayings like "beer before liquor, never been sicker," mixing different types of alcoholic beverages (beer, wine, spirits) is not inherently more dangerous than sticking to one kind. The core issue is not the combination itself, but the total amount of ethanol consumed and the rate at which you consume it. The myth often arises because switching from a lower-proof drink like beer to a higher-proof liquor can cause one to misjudge their intake, leading to faster and more severe intoxication. Conversely, starting with spirits can impair judgment, potentially leading to faster consumption of subsequent lower-ABV drinks.

What About Congeners?

Different alcoholic beverages contain varying levels of congeners, which are chemical byproducts of the fermentation and aging process. Darker liquors like whiskey and red wine typically have higher congener content than clear spirits like vodka. These congeners have been linked to more severe hangover symptoms, such as headaches and nausea. While mixing a dark and light liquor won't cause a unique chemical reaction, it can increase your total congener intake, potentially leading to a worse hangover the next day.

Accelerated Absorption with Carbonated Drinks

Another factor to consider is the impact of carbonation. Mixing alcohol with carbonated beverages, such as soda, tonic water, or sparkling wine, can increase the rate at which alcohol is absorbed into the bloodstream. The carbon dioxide gas temporarily increases pressure in the stomach, forcing alcohol into the small intestine more quickly where it is absorbed. This can cause a faster onset of intoxication, although the overall effect will eventually be the same as consuming the same amount of alcohol without carbonation.

The Hidden Risk of Sugary Mixers

Sweet, sugary mixers, including fruit juices and soft drinks, pose a different kind of risk. They can make the taste of alcohol more palatable, which can lead to faster consumption and a higher overall intake of alcohol. While the sugar itself doesn't make the alcohol stronger, it can mask the taste and make you less aware of how much you are drinking. High sugar intake also contributes to other health issues, including weight gain and type 2 diabetes. Some evidence also suggests the sugar and alcohol combination might have heightened addictive properties.

Comparison of Alcohol Mixing Risks

Combination Risk Factor Health Consequences
Alcohol + Medications Extremely dangerous drug interactions Liver damage, overdose, respiratory failure, enhanced side effects
Alcohol + Stimulants Masking of alcohol's depressant effects Overconsumption, alcohol poisoning, cardiac stress, risky behavior
Different Alcohol Types Difficulty tracking total intake Increased risk of binge drinking, severe hangovers due to overconsumption
Alcohol + Carbonation Accelerated absorption rate Faster onset of intoxication
Alcohol + Sugary Mixers Palatability leads to overconsumption Faster drinking, weight gain, increased risk of type 2 diabetes

Responsible Drinking Guidelines

  • Always check medication labels and consult your doctor before consuming alcohol. Never assume any medication is safe to mix.
  • Avoid mixing alcohol with energy drinks or other stimulants to prevent overconsumption and cardiovascular stress.
  • Prioritize monitoring your total alcohol intake and pace yourself, regardless of the drink type.
  • If mixing is a part of your evening, stay mindful of your total units consumed. Alternating alcoholic beverages with water is a great way to stay hydrated and reduce overall alcohol intake.
  • Consider the congener content of your drinks if you are prone to severe hangovers, as darker spirits often have higher levels.

Conclusion

The most important takeaway is that while the old adage about mixing different alcohols is largely a myth, several combinations are genuinely dangerous and should be avoided entirely. Mixing alcohol with medications poses severe, life-threatening risks due to unforeseen drug interactions, while combining it with stimulants can lead to risky overconsumption and alcohol poisoning. The danger isn't in combining types like wine and whiskey, but rather in the overall volume consumed and what non-alcoholic substances are introduced. By staying informed about these critical distinctions, you can make smarter, safer choices for your health and well-being. For further information on dangerous substance combinations, visit the National Institute on Drug Abuse website.

NIH resource on drug interactions with alcohol

Frequently Asked Questions

No, the risk comes from the total volume of alcohol consumed, not the mix itself. The myth is based on the tendency to misjudge consumption and overdrink when switching to a higher-proof beverage.

Energy drinks contain stimulants like caffeine that mask the depressant effects of alcohol, causing you to feel less intoxicated than you are. This can lead to overconsumption, alcohol poisoning, and cardiovascular problems.

Many medications, including painkillers (opioids and acetaminophen), antidepressants, anti-anxiety drugs (like benzodiazepines), and amphetamines, should never be mixed with alcohol due to the risk of dangerous interactions.

Darker liquors generally contain more congeners, chemical byproducts from fermentation. These can worsen hangover symptoms for some people, but overall hangover severity is most influenced by the amount of alcohol consumed.

Yes, carbonation can speed up the absorption of alcohol into the bloodstream by increasing stomach pressure, causing the effects to be felt more quickly.

While sugar doesn't make alcohol stronger, sweet mixers can make it easier and more pleasant to drink, potentially leading to faster and higher overall consumption and intoxication.

Focus on moderation and hydration. Monitor your total alcohol intake, regardless of the type, pace yourself, and drink plenty of water to minimize dehydration and avoid overconsumption.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.