Does Alcohol Thin Your Blood? Short- and Long-Term Effects

This is known as an anticoagulant which is basically a medicine that targets the clotting of your blood. They do come with side effects, though, such as hair loss, abdominal pain and gas. There are also other blood thinners that you can try, provided that you have gained the clearance from your doctor, such as…


This is known as an anticoagulant which is basically a medicine that targets the clotting of your blood. They do come with side effects, though, such as hair loss, abdominal pain and gas. There are also other blood thinners that you can try, provided that you have gained the clearance from your doctor, such as pradaxa, Xarelto, or eliquis. In small doses, alcohol had a blood thinning effect to reduce blood clotting. However, it’s not a viable alternative to prescribed blood thinners. The result can be a coagulopathy—the inability to clot effectively—leading to an elevated risk of internal bleeding (e.g., gastrointestinal bleeds, bleeding from varices in advanced cirrhosis).

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Ask your doctor if it’s safe for you to drink alcohol while taking blood thinners. Both alcohol and blood thinners like warfarin (Coumadin) thin your blood. Taking both together could compound the anticoagulant effect and increase your risk of bleeding. Blood thinners are medications that prevent blood clots from occurring. Although alcohol thins your blood, drinking instead of taking medication can be dangerous. The review authors highlighted that previous research has suggested drinking significant amounts of alcohol every day has links to a higher risk of developing high blood pressure.

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Too much clotting is dangerous because platelets can build up in your veins and then dislodge. Clots can travel to your heart or brain and cause a heart attack or stroke. This is a common reason people get a blood thinner prescribed by their doctor. Cardiovascular disease is one of the most common and high-risk problems that can go hand in hand with having a drink. Not only does alcohol thin your blood, there are medications you can take to avoid clotting and prevent heart attack.

For example, the NIAA advises that drinking alcohol while taking warfarin, which is a blood thinner, can have adverse effects. Blood clotting is essential to prevent blood loss when someone is injured or wounded. For example, if a blood clot forms and limits the flow of blood in the arteries, doctors call this thrombosis. But sometimes, a blood clot can form in — or travel to — an artery that supplies your heart or brain with oxygen-rich blood. Binge drinking, particularly when you do it multiple times per week, is where many of the larger risks come into play.

How does alcohol thin the blood?

They may refer to them as blood thinners, anticoagulants, or antiplatelet drugs. A doctor may prescribe these medications to reduce a person’s risk of heart attack and stroke. Moreover, chronic heavy drinking can lead to long-term health problems, including liver disease. The how does alcohol thin the blood liver is crucial for producing proteins necessary for blood clotting; thus, liver damage can severely impair blood clotting mechanisms, leading to an increased risk of bleeding. For some individuals, the fleeting platelet function changes from moderate drinking might slightly reduce a few cardiovascular risks.

A higher BAC can impair your cognitive functions and physical coordination. When it comes to blood properties, higher BAC levels can temporarily thin your blood, reducing its ability to clot. While this might sound beneficial in preventing clots, it can also pose serious risks, such as increased bleeding during injuries or surgeries.

For patients with cardiac problems in particular, it is important not to depend entirely on the consumption of alcohol for treatment of clot formation. At best, the effect of alcohol can last long enough if it is consumed in moderation and on every alternate day. Recent research endeavors have added further backing for such a claim, as alcohol has the ability to thin the blood. As anything else contributing to a healthy lifestyle, moderation is a key factor for the health benefits of alcohol.

Yet, for many more, the broader hazards of heavy or chronic alcohol use overshadow any potential benefit. The interplay of dose, frequency, genetics, concurrent medications, and overall health means that each person’s physiological response will differ. This is why some people extol the benefits of moderate drinking for heart health. The theory is that drinking moderate amounts of alcohol protects against blood clots that may block an artery, trigger a heart attack, or cause an ischemic stroke.

Consuming alcohol will thin your blood, making you more susceptible to heavy bleeding or bruising if you experience an injury. Short-term, you can expect an increase in blood pressure and higher cortisol levels. The effects of alcohol consumption on blood pressure and heart rate can last up to 13 hours after drinking, and its effects on heart rate can last up to 24 hours after drinking. Short-term effects occur because of how alcohol impacts receptors in the blood. Specific blood vessels near the heart rely on receptors to keep blood pressure at a healthy level. When alcohol is in the blood, these receptors do not function as they should.

  • Any amount of alcohol that exceeds the daily limits of “moderate drinking” is considered heavy drinking, which brings additional health risks.
  • These cells are sticky and cluster together and work to stop bleeding.
  • When you’re injured, blood cells called platelets rush to the injury site.
  • About 70% travel freely while the remaining 30% stay in your spleen, where they are stored.
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Long-term alcohol use also can lead to an increased risk of developing arrhythmias, which are irregular heartbeats, as well as cardiomyopathy, a stretching or drooping of the heart. When structural changes take place, it affects how well the blood pumps blood throughout the rest of the body. Another reason for the increase in blood pressure and heart rate is how alcohol affects hormones, specifically the stress hormone known as cortisol. Cortisol is released when a person feels physical or psychological stress so that they are prepared for a threat to their well-being.

  • However, it’s not a viable alternative to prescribed blood thinners.
  • Both alcohol and blood thinners like warfarin (Coumadin) thin your blood.
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  • If you’re taking blood thinners or will be soon, quitting drinking is critically important.
  • The key term here is “moderate,” which is generally defined as up to one drink per day for women and up to two drinks per day for men.

If you don’t have major health issues, you may be able to drink lightly to moderately with your doctor’s permission. Even minor injuries, such as scratches, can damage blood vessels and cause bleeding. To control excessive bleeding and ensure an injury does not become life-threatening, the blood clots.

However, it’s important to understand that this does not mean an alcoholic drink is a health tonic. The key term here is “moderate,” which is generally defined as up to one drink per day for women and up to two drinks per day for men. Exceeding this amount can lead to the opposite effect, increasing the risk of bleeding complications and other health issues. Do not drink alcohol for its blood-thinning effects as an alternative to medication prescribed by a doctor. Drinking alcohol for its blood thinning effects may undoubtedly produce it, but the other unhealthy effects are sure to outweigh, or even exacerbate, the desired one.

Consistently consuming four or more drinks (for men) or three or more drinks (for women) several days each week can cause you to create dangerous clots. Abstain from alcohol while you are taking an anticoagulant or blood thinner. It’s hard for your doctor to determine the right dose and keep you as healthy as possible if you also drink.

Alcohol, Anticoagulant Medications, and Bleeding Risks

Although alcohol thins the blood, long-term use can have a different effect. When a person drinks excessively for long periods, their risk for a stroke increases. The effects of alcohol consumption on the blood are either short-term or long-term.

Alcohol consumption can lead to severe complications both during and after surgery. It can result in a longer hospital stay and an extended recovery time. Experts define binge drinking as consuming in excess of four drinks for females or five drinks for males within around 2 hours.


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