Can I consume alcohol while taking Intuniv (guanfacine)?

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Last updated: July 1, 2025View editorial policy

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From the Guidelines

It is not recommended to consume alcohol while taking Intuniv (guanfacine). According to the provided evidence, particularly from the study on Guanfacine 1, alcohol can worsen the side effects of Intuniv, particularly dizziness, drowsiness, and low blood pressure. Both substances have central nervous system depressant effects that can compound each other, potentially leading to excessive sedation and impaired coordination.

Key Considerations

  • Intuniv works by affecting certain receptors in the brain that regulate blood pressure and attention, and alcohol can interfere with these mechanisms, potentially reducing the medication's effectiveness in treating conditions like ADHD.
  • The combination may increase the risk of fainting or falls due to enhanced blood pressure-lowering effects.
  • If you're currently taking Intuniv, it's best to avoid alcohol completely or discuss with your healthcare provider if occasional, minimal consumption might be safe in your specific situation.
  • Never adjust your medication schedule or skip doses to accommodate alcohol consumption, as this can disrupt the therapeutic effects of Intuniv.

General Guidance on Alcohol Consumption

While general guidelines on alcohol consumption suggest moderation, defined as up to one drink a day for women and up to two drinks a day for men 1, the specific interaction between alcohol and Intuniv (guanfacine) necessitates a more cautious approach. The most recent and highest quality study relevant to the interaction between alcohol and medications like Intuniv emphasizes the importance of avoiding alcohol when taking certain medications due to potential adverse effects 1.

Conclusion is Not Applicable

Instead, the focus is on the direct recommendation based on the most recent and relevant evidence. Avoiding alcohol while taking Intuniv is the safest approach to prevent potential adverse interactions and ensure the medication's efficacy. Always consult with a healthcare provider for personalized advice on medication and alcohol use.

From the FDA Drug Label

Patients should be warned that their tolerance for alcohol and other CNS depressants may be diminished

  • The FDA drug label advises caution with alcohol consumption while taking Intuniv (guanfacine) as it may increase sedative effects.
  • Key point: Patients' tolerance for alcohol may be diminished while taking guanfacine.
  • It is recommended to exercise caution when consuming alcohol while on Intuniv 2

From the Research

Interaction between Intuniv (Guanfacine) and Alcohol

  • There is limited research directly addressing the interaction between Intuniv (guanfacine) and alcohol consumption 3.
  • However, studies suggest that guanfacine may have a potential role in treating alcohol use disorder, as it has been shown to decrease alcohol intake in high-consuming rats and attenuate the alcohol deprivation effect 3.
  • It is essential to note that guanfacine is an α-2-adrenoceptor agonist, and its interaction with alcohol may be complex, potentially leading to increased sedation or other adverse effects 4, 5.
  • A study on the interaction between lorazepam and alcohol found that combining the two substances increased sedation and anxiety, highlighting the potential risks of mixing psychotropic medications with alcohol 5.
  • Patients taking psychotropic medications, including guanfacine, should be aware of the potential risks of alcohol consumption and consult their healthcare provider for guidance 4.

Recommendations for Alcohol Consumption while taking Intuniv

  • Due to the limited research on the specific interaction between guanfacine and alcohol, it is crucial to exercise caution when consuming alcohol while taking Intuniv 3.
  • Patients should consult their healthcare provider for personalized advice on alcohol consumption while taking guanfacine, as individual circumstances may vary 4.
  • Healthcare providers may recommend avoiding alcohol consumption or limiting it to minimal amounts to minimize potential adverse effects 4, 5.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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