Alcohol and Local Anesthesia: Why You Should Avoid Drinking

Alcohol should be avoided for at least 24 hours after receiving local anesthesia.

Risks of Combining Alcohol with Local Anesthetics

• Additive CNS depression: Both substances cause sedation, dizziness, and impaired coordination.
• Cardiovascular effects: Alcohol combined with vasoconstrictors (epinephrine in anesthetic) may cause tachycardia, hypertension, or arrhythmias.
• Respiratory depression: Rare but serious, especially with higher anesthetic doses.
• Impaired wound healing: Alcohol affects inflammation and collagen synthesis.
• Bleeding risk: Alcohol inhibits platelet function and may increase hematoma at the injection site.

Additional Post-Anesthetic Precautions

• Do not drive or operate machinery until full sensation returns (typically 2–4 hours, up to 8 for some blocks)
• Protect the numb area from trauma (biting lip, hot liquids)
• Stay hydrated
• Follow procedure-specific instructions

Special Considerations

Dental procedures with epinephrine: alcohol may exacerbate palpitations. Epidural or spinal anesthesia: alcohol worsens post-dural puncture headache risk. Always clarify with your provider.