In this guide
- Is addiction a disease?
- What is the difference between dependence and addiction?
- How long does fentanyl withdrawal last?
- How long does alcohol withdrawal last?
- What is medication-assisted treatment?
- What are the signs of a relapse?
- What is the success rate of rehab?
Is addiction a disease?
Yes. The American Society of Addiction Medicine defines addiction as a treatable, chronic medical disease involving brain circuits, genetics, environment, and life experience. Treatment works, and outcomes improve the longer someone stays engaged in care.
What is the difference between dependence and addiction?
Physical dependence means the body adapts to a substance and produces withdrawal when it stops. Addiction adds compulsive use despite harm. You can be dependent without being addicted, as with prescribed opioids taken as directed, but most people who seek treatment have both.
How long does fentanyl withdrawal last?
Acute fentanyl withdrawal typically peaks at 48 to 72 hours and eases over 5 to 10 days, though fentanyl's fat solubility can extend symptoms beyond heroin's timeline. Post-acute symptoms such as sleep problems and low mood can persist for weeks. Medical detox with buprenorphine makes withdrawal manageable.
How long does alcohol withdrawal last?
Symptoms begin 6 to 24 hours after the last drink, peak at 24 to 72 hours, and resolve over 5 to 7 days. Seizures and delirium tremens can occur in the 48 to 96 hour window, which is why alcohol withdrawal requires medical supervision.
What is medication-assisted treatment?
MAT combines FDA-approved medications such as buprenorphine, naltrexone, or acamprosate with counseling. It is the standard of care for opioid and alcohol use disorders and roughly halves the risk of overdose death for opioid users.
What are the signs of a relapse?
Common warning signs include reconnecting with using friends, skipping meetings or therapy, romanticizing past use, isolation, changes in sleep, and increased irritability. Relapse is a process that starts before the first use, which is why aftercare focuses on these early signals.
What is the success rate of rehab?
Roughly 40 to 60 percent of people treated for a substance use disorder relapse at some point, a rate comparable to other chronic diseases such as hypertension and asthma. Success improves with longer engagement, treatment of co-occurring conditions, and structured aftercare.