Drug Metabolism

Alcohol

• Ethanol
• Ethyl Glucuronide
• Ethyl Sulfate

• 7-12 hours
• 1-3 days
• 1-3 days

Amphetamines

• Amphetamine
• Methamphetamine
• MDMA

• 2-3 days
• 2-3 days
• 2 days

Barbiturates

• Short-acting (pentobarbital)
• Intermediate (butalbital)
• Long-Acting (phenobarbital)

• 3 days
• 7 days
• 15 days

Benzodiazepines

• Short-acting (lorazepam)
• Long-acting (diazepam)

• 3-5 days
• 10 days

Cocaine

• Cocaine
• Cocaine metabolites

• <1 day
• 2-4 days

Marijuana

• Occasional use (1x-2x/week)
• Daily use
• Chronic heavy use

• 3 days
• 10-15 days
• 30 days

Opioids

• Buprenorphine
• Fentanyl
• Hydrocodone
• Hydromorphone
• Methadone
• Oxycodone

• 7 days
• 3 days
• 2-4 days
• 2-4 days
• 3 days
• 2-4 days

• 8 days