Contrave and alcohol drug interactions are represented by a small glass of alcohol beside a Contrave pill bottle on a bar counter, with a blurred background creating a moody contrast.

Contrave and Alcohol Drug Interactions: Dangers & Risks

Dr. Matthew Olesiak
SANE MD Chief Medical Director at SANESolution

Dr. Matthew Olesiak, MD, is the Chief Medical Director at SANESolution, a renowned wellness technology company dedicated to providing evidence-based solutions for optimal living. Dr. Olesiak earned his medical degree from the prestigious Jagiellonian University Medical College in Kraków, Poland, where he developed a strong foundation in medicine.

Contrave is a prescription medication designed to aid weight loss in certain adults by combining two active drugs: naltrexone and bupropion. While it can be effective in supporting weight management, taking Contrave comes with potential risks, especially when combined with alcohol use.

Contrave and alcohol drug interactions can lead to severe complications, increasing the risk of side effects, impacting mental health, and causing significant changes in blood pressure. Patients should be aware of these possible Contrave drug interactions to avoid dangerous health consequences.

Key Takeaways

  • Increased Risk of Adverse Effects: Drinking alcohol while taking Contrave can increase the risk of seizures, mental health changes, and fluctuations in blood pressure.
  • Severe Cardiovascular and Neurological Concerns: The combination of alcohol and Contrave may contribute to irregular heartbeat, high blood pressure, and a higher likelihood of experiencing seizures.
  • Healthcare Provider Consultation is Essential: Patients should consult their healthcare provider before consuming alcohol while on Contrave treatment to assess their individual risk factors and potential complications.

Understanding Contrave and Alcohol Drug Interactions

Contrave is a combination drug used to aid weight management in certain adults. It consists of two active ingredients: naltrexone, an opioid antagonist, and bupropion, an antidepressant that helps treat depression and supports smoking cessation.

But what does Contrave do when combined with alcohol? While this formulation can be effective in supporting weight loss for compatible individuals, drinking alcohol while taking Contrave introduces serious risks. Alcohol can alter the drug effects of Contrave, leading to dangerous interactions that impact physical and mental health.

The Science Behind Alcohol’s Effects on the Body

Neurotransmitter Disruption

Alcohol affects neurotransmitters in the brain, primarily enhancing the effects of gamma-aminobutyric acid (GABA), which induces relaxation, and inhibiting glutamate, which leads to slowed brain activity. These effects can cause drowsiness, impaired motor skills, and mood swings.

When alcohol is combined with Contrave, which also affects neurotransmitter activity, the result can be extreme mood swings, heightened anxiety, or increased drowsiness, making daily tasks and decision-making more difficult.

It can also increase the risk of seizures. As mentioned above, alcohol impacts the brain’s electrical activity and neurotransmitter balance. When combined with Contrave, which already has stimulant-like effects due to bupropion, the risk of abnormal brain activity leading to seizures becomes significantly higher.

Additionally, if a person with a seizure disorder suddenly stops drinking alcohol while on Contrave, withdrawal symptoms can trigger seizures, even in individuals who have never experienced one before.

Metabolic Impact

The liver is responsible for metabolizing both alcohol and Contrave, which means excessive alcohol consumption can interfere with the breakdown of the drug. This can lead to intensified or unpredictable drug effects, increasing the risk of toxicity.

Additionally, alcohol can alter the body’s metabolic rate, potentially reducing the effectiveness of Contrave in weight loss treatment by impairing fat metabolism and promoting fat storage instead.

Cardiovascular Effects

Alcohol consumption can have varying effects on blood pressure, sometimes causing a dangerous drop or an unexpected spike. For individuals taking Contrave, which already carries a risk of fluctuating blood pressure, this interaction can be particularly dangerous.

Chronic alcohol consumption can also weaken the heart muscle, increasing the likelihood of long-term cardiovascular complications when combined with Contrave treatment.

Contrave and Alcohol Drug Interactions: Risks and Explanations

Risk/Concern Explanation
Increased Risk of Seizures Alcohol lowers the seizure threshold, and Contrave contains bupropion, which can increase seizure risk. The combination makes seizures more likely, especially in those with a history of seizure disorder.
Fluctuations in Blood Pressure Both Contrave and alcohol can cause sudden changes in blood pressure, resulting in dangerously high or low blood pressure, increasing cardiovascular risks such as heart attack or stroke.
Mental Health Risks Alcohol is a depressant that can counteract the mood-regulating effects of Contrave, leading to worsened depression, anxiety, mood swings, or even suicidal thoughts.
Impaired Judgment Alcohol reduces inhibitions and decision-making abilities. Drinking while on Contrave may lead to overeating, engaging in risky behaviors, or neglecting weight loss goals.
Low Blood Sugar Alcohol interferes with glucose metabolism, increasing the risk of hypoglycemia (low blood sugar), particularly dangerous for individuals with diabetes or metabolic disorders.
Liver Strain and Toxicity Both Contrave and alcohol are processed in the liver. Consuming alcohol while on Contrave can increase the risk of liver damage or impaired drug metabolism.
Binge-Eating Episodes Contrave is designed to suppress appetite, but alcohol lowers self-control and increases hunger, which may lead to unplanned binge eating and hinder weight loss progress.
Gastrointestinal Discomfort Alcohol can irritate the digestive system, worsening nausea, acid reflux, and ulcers, which are potential side effects of Contrave.
Potential Drug Interactions Contrave interacts with various medications, including opioids, antidepressants, blood pressure drugs, and diabetes medications. Alcohol can exacerbate these interactions and increase health risks.
Consult a Healthcare Provider Patients should consult their healthcare provider before consuming alcohol while taking Contrave to assess their individual risk factors and prevent serious complications.

Long-Term Health Risks of Mixing Contrave and Alcohol

Cardiovascular Damage

Long-term alcohol use, combined with Contrave, can contribute to serious cardiovascular complications, including hypertension, stroke, and heart attack. Alcohol can raise blood pressure levels, which may further increase the risk of severely high blood pressure in individuals taking Contrave.

Over time, this strain on the cardiovascular system can lead to heart failure or other serious health conditions.

Low Blood Sugar

One of the critical risks associated with combining Contrave and alcohol is the potential for low blood sugar (hypoglycemia), particularly in individuals with diabetes or those prone to blood sugar fluctuations.

Contrave influences metabolism and appetite regulation, which can affect blood sugar levels, while alcohol further complicates this balance by altering how the body processes glucose.

Mental Health Decline

Bupropion, one of Contrave’s active ingredients, is used to treat depression, meaning any additional depressant effects from alcohol can negatively impact mental health. Individuals with pre-existing depression or anxiety may find that alcohol worsens their condition, leading to increased feelings of hopelessness, panic attacks, or even suicidal thoughts.

Because Contrave affects the brain’s chemistry, drinking alcohol while taking it can intensify these risks.

Metabolic and Liver Complications

Since both alcohol and Contrave are processed in the liver, their combined use may lead to liver damage. The liver’s reduced ability to efficiently metabolize medications can increase the risk of drug accumulation, leading to intensified side effects and potential toxicity.

Additionally, chronic alcohol consumption can contribute to fatty liver disease, impairing overall metabolic function and potentially negating Contrave’s weight loss benefits.

Gastrointestinal Issues

Alcohol is known to irritate the digestive system, and when combined with Contrave, it can exacerbate nausea, acid reflux, and the risk of ulcers.

Individuals who consume alcohol regularly may experience worsened gastrointestinal discomfort while taking Contrave, which can lead to long-term digestive complications if the combination continues over time.

5 Contrave and Alcohol Drug Interactions Infographic

Psychological and Behavioral Concerns

Impaired Judgment

Alcohol reduces inhibitions and impairs cognitive function, making it easier for individuals to engage in reckless behaviors.

For those taking Contrave to manage their weight, alcohol consumption can counteract the medication’s benefits by leading to overeating, engaging in risky situations, or neglecting weight loss plans altogether.

Mood Swings and Depression

Since bupropion is designed to regulate mood, alcohol’s depressive effects can interfere with this mechanism. Drinking alcohol while on Contrave can result in severe mood swings, exacerbating depression symptoms and potentially leading to suicidal thoughts.

Patients with a history of mood disorders should be especially cautious when considering alcohol consumption while taking Contrave.

Heightened Anxiety and Panic Attacks

The neurological effects of alcohol can increase feelings of anxiety, especially when combined with Contrave.

Individuals who are already prone to anxiety disorders may find that drinking alcohol intensifies their symptoms, leading to panic attacks or overwhelming stress that can disrupt daily life and overall well-being.

Binge-Eating Episodes

Contrave is designed to suppress appetite and reduce cravings, but alcohol consumption can disrupt this effect. Alcohol lowers self-control and increases hunger signals, leading individuals to engage in unplanned binge-eating episodes.

This can undermine weight loss progress and lead to frustration or feelings of failure in individuals using Contrave for weight management.

Medical Recommendations and Safer Alternatives

Healthcare Provider Consultation

Before starting Contrave, it is essential for individuals to discuss their alcohol consumption habits with their healthcare provider. This discussion will help determine the safest approach to using Contrave while minimizing potential risks associated with alcohol use.

Healthcare professionals may offer specific recommendations tailored to each patient’s medical history and weight loss goals.

Gradual Reduction of Alcohol Intake

For individuals who frequently consume alcohol, a gradual reduction before starting Contrave can help lower the risk of severe side effects.

Abruptly stopping alcohol intake, particularly for heavy drinkers, can cause withdrawal symptoms, which should be managed with medical supervision.

Safer Weight Loss Medications

Patients who drink alcohol regularly may need to consider alternative weight loss medications that do not carry the same level of risk as Contrave.

A healthcare provider can recommend weight loss drugs with fewer interactions, helping individuals achieve their health goals without compromising safety.

Behavioral Therapy and Counseling

Patients struggling with both weight loss and alcohol dependence may benefit from behavioral therapy or counseling.

These interventions can support long-term weight management strategies and address underlying emotional or psychological triggers contributing to excessive alcohol consumption or overeating.

The Role of Diet and Lifestyle in Contrave’s Effectiveness

Healthy Diet Choices

Maintaining a balanced diet is crucial for maximizing Contrave’s benefits. Avoiding high-fat foods can improve drug absorption and reduce gastrointestinal discomfort.

A diet rich in lean proteins, fiber, and vegetables can enhance weight loss results while supporting overall health.

Regular Exercise

Physical activity plays a vital role in weight management and overall well-being.

Combining Contrave with a consistent exercise regimen can improve cardiovascular health, enhance metabolism, and increase energy levels, leading to more effective weight loss results.

Proper Hydration

Staying hydrated is essential when taking Contrave, as dehydration can worsen side effects like nausea and dizziness.

Drinking adequate water supports metabolic function and prevents complications related to excessive alcohol or medication use.

Adequate Sleep

Sleep quality is a critical factor in weight loss and overall health.

Individuals taking Contrave should prioritize restful sleep, as sleep deprivation can lead to weight gain, increased cravings, and heightened stress levels that may counteract the medication’s benefits.

Frequently Asked Questions (FAQ) About Contrave and Alcohol Drug Interactions

Contrave is a weight loss medication that combines bupropion and naltrexone, both of which have specific effects on the brain and body. Because of its unique formulation, Contrave interacts with various substances, including alcohol, medications, and dietary choices.

Below are answers to some of the most commonly asked questions regarding Contrave, its interactions, and how to use it safely and effectively.

1. Can you take Contrave and drink alcohol?

It is strongly advised to avoid drinking alcohol while taking Contrave. Alcohol can intensify the side effects of Contrave, including dizziness, nausea, mood swings, and an increased risk of seizures. Additionally, since bupropion is associated with lowering the seizure threshold, combining it with alcohol—especially in large amounts or when suddenly stopping alcohol use—can significantly raise the risk of seizures.

Furthermore, alcohol can counteract the weight loss benefits of Contrave by lowering inhibitions and increasing the likelihood of overeating.

2. What medications should not be taken with Contrave?

Contrave interacts with several medications, and patients must consult their healthcare provider before combining it with other drugs. Opioid-based painkillers, such as oxycodone or morphine, should not be taken with Contrave due to naltrexone’s opioid-blocking effects, which can trigger severe withdrawal symptoms. Taking Contrave and Phentermine together can trigger drug interactions.

Additionally, antidepressants, certain beta blockers, antipsychotic medications, and diabetes treatments may require careful monitoring due to the risk of increased side effects or reduced effectiveness. Over-the-counter stimulants, energy supplements, and certain herbal remedies like St. John’s Wort may also interfere with Contrave’s effects. Even Contrave and melatonin can cause adverse drug interactions. In addition, Contrave and lisinopril drug interactions can occur, as alcohol affects blood pressure.

3. Is Contrave hard on the liver?

Both naltrexone and bupropion are metabolized in the liver, meaning that Contrave can put additional strain on liver function, particularly in individuals with pre-existing liver conditions. Patients with liver disease should consult their healthcare provider before starting Contrave to determine whether it is a safe option for them.

Chronic alcohol consumption can further increase the risk of liver damage, making it crucial to avoid excessive drinking while on Contrave. In most healthy individuals, liver function remains normal while taking the medication, but routine monitoring may be advised for those at higher risk.

4. Can I drink coffee while on Contrave?

Moderate coffee consumption is generally safe while taking Contrave; however, it is important to be mindful of caffeine intake. Contrave has stimulant-like effects due to bupropion, which can increase heart rate and blood pressure.

Consuming excessive caffeine from coffee, tea, or energy drinks may heighten these effects, leading to jitteriness, restlessness, or palpitations. If you experience increased anxiety, rapid heartbeat, or trouble sleeping while on Contrave, reducing caffeine intake may help alleviate these symptoms.

5. What to avoid while on Contrave?

While taking Contrave, it is essential to avoid alcohol due to the risk of seizures and intensified side effects. High-fat meals should also be minimized, as they can increase the absorption of Contrave, leading to a higher likelihood of nausea and dizziness. Opioid painkillers must be avoided, as naltrexone blocks opioid effects and can trigger withdrawal symptoms.

Other stimulants, such as energy drinks and weight loss supplements, should be used with caution, as they may increase heart rate and blood pressure. Patients should also consult their healthcare provider before taking new prescription or over-the-counter medications to prevent harmful drug interactions.

6. How to maximize weight loss on Contrave?

To maximize weight loss while taking Contrave, patients should adopt a comprehensive approach that includes a balanced diet, regular exercise, and lifestyle changes. Eating nutrient-dense foods that are low in processed sugars and unhealthy fats can improve the drug’s effectiveness. Consistent physical activity, such as cardio and strength training, enhances metabolism and supports sustainable weight loss. Staying hydrated and getting adequate sleep can also help the body regulate hunger and energy levels more effectively.

Additionally, following up with a healthcare provider or nutritionist can provide personalized recommendations to optimize results.

7. What is the downside of Contrave?

While Contrave can be effective for weight loss for compatible individuals, it is not without potential drawbacks. Some patients experience side effects such as nausea, dizziness, dry mouth, insomnia, or constipation, especially when first starting the medication.

Contrave also carries a risk of increasing blood pressure and heart rate, making it unsuitable for individuals with certain cardiovascular conditions. Additionally, because it contains bupropion, there is a potential for mood changes, anxiety, and, in rare cases, suicidal thoughts.

Patients should closely monitor their response to Contrave and consult their healthcare provider if they experience severe or persistent side effects.

Conclusion

The combination of Contrave and alcohol presents significant health risks that should not be underestimated. From increased susceptibility to seizures and cardiovascular complications to severe mental health impacts, the interaction between these substances can have profound consequences. Patients taking Contrave must be mindful of their alcohol intake, as even moderate consumption can disrupt the drug’s intended effects and heighten the risk of dangerous side effects.

Healthcare providers play a crucial role in guiding patients through safe weight loss treatments. Consulting a medical professional before consuming alcohol while on Contrave is essential in preventing severe adverse reactions. Individuals with pre-existing conditions such as high blood pressure, mood disorders, or liver issues should exercise particular caution.

For those committed to weight loss, prioritizing a balanced diet, regular exercise, and healthy lifestyle habits will yield far better results than relying on medication alone. Eliminating alcohol or significantly reducing consumption can support the effectiveness of Contrave, helping patients achieve their goals safely and sustainably.

Ultimately, informed decision-making and open discussions with healthcare professionals are key to ensuring a successful and safe weight loss journey.