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Substance education

Alcohol.

Alcohol overdose can suppress breathing; being legal does not remove risk.

Also known as Booze, Ethanol. A name does not verify contents.

Impairment & overdose

Alcohol impairs coordination and judgment. Severe poisoning suppresses functions needed for breathing and temperature control. Blood alcohol may continue rising after drinking stops.

Sources & review notes
  1. Understanding the Dangers of Alcohol Overdose
    NIH / NIAAA · Accessed 2026-09-26 · Signs, combinations, bystander response

Do not leave someone to sleep it off

Confusion, vomiting, seizures or trouble staying conscious can signal overdose. An unconscious person may choke. Coffee, walking and cold showers do not reverse poisoning.

Sources & review notes
  1. Understanding the Dangers of Alcohol Overdose
    NIH / NIAAA · Accessed 2026-09-26 · Signs, combinations, bystander response

Depressant combinations

Opioids, benzodiazepines and other sedating medicines can increase respiratory-depression risk with alcohol.

Sources & review notes
  1. New Safety Measures for Opioid Analgesics and Benzodiazepines
    FDA · Published/updated 2016-08-31 · Accessed 2026-09-26 · Patient information: combined CNS depressants
  2. Understanding the Dangers of Alcohol Overdose
    NIH / NIAAA · Accessed 2026-09-26 · Signs, combinations, bystander response

Long-term health & withdrawal

Heavy long-term drinking can contribute to liver disease, heart problems and other serious illness. After prolonged heavy drinking, withdrawal can be dangerous. Seek medical help to plan stopping and manage symptoms.

Sources & review notes
  1. Medical Complications: Common Alcohol-Related Concerns
    NIH / NIAAA · Accessed 2026-09-26 · Long-term harms and dangerous withdrawal

Energy drinks do not sober you up

Caffeine may create alertness without removing alcohol impairment, encouraging further drinking or unsafe decisions.

Sources & review notes
  1. Effects of Mixing Alcohol and Caffeine
    CDC · Published/updated 2024-05-15 · Accessed 2026-09-26 · Caffeine does not reverse alcohol impairment

Warning signs

Call 911 for inability to wake, seizure, collapse or abnormal breathing. Stay with the person and follow emergency guidance.

Sources & review notes
  1. First aid: Act fast!
    National Capital Poison Center · Accessed 2026-09-26 · 911 criteria and Poison Control contact
  2. Understanding the Dangers of Alcohol Overdose
    NIH / NIAAA · Accessed 2026-09-26 · Signs, combinations, bystander response

Interaction records

Benzodiazepines · Severe risk →

Prescription opioids · Severe risk →

GHB · Severe risk →

GBL · Severe risk →

Ketamine · Severe risk →

Cocaine · High risk →

Caffeine & energy drinks · Increased risk →

Open the interaction checker →

This resource provides general education, not medical advice or personal clearance to use a substance. No drug or combination is risk-free. For an emergency, call 911.