Medically reviewed by Jeffrey H. Simon, M.D.
Medical Director, Virginia Addiction & Mental Health Center · Last reviewed August 31, 2026
People use 'detox' and 'rehab' as if they were the same thing. They are two different services with different goals, different timelines, and different clinical staff. Confusing them is one of the most common reasons treatment fails: someone completes a week of withdrawal management, feels physically better, goes home, and has no plan for the part that actually treats the addiction.
What detox actually is
Medically managed withdrawal — the clinical term for detox — is short-term medical care whose only job is to get you through withdrawal safely. Staff monitor vitals, use withdrawal scales to track severity, and prescribe medications to control symptoms and prevent complications such as seizures. It typically runs three to seven days in an inpatient or medically supervised setting.
Detox is not therapy. It is not treatment for the disorder. It is a medical bridge that makes treatment possible for people whose bodies cannot safely stop on their own.
What rehab actually is
"Rehab" is the treatment that changes outcomes. In practice it means individual therapy, group therapy, psychiatric care and medication management, family work, and relapse prevention skills, delivered at whichever level of intensity fits — residential, partial hospitalization, intensive outpatient, or weekly outpatient care.
This is where the actual clinical work happens: identifying triggers, treating co-occurring depression, anxiety, or PTSD, rebuilding routines and relationships, and putting a medication plan in place. It is measured in weeks and months, not days.
Who needs detox first, and who does not
Withdrawal risk is substance-specific. Alcohol and benzodiazepine withdrawal can be medically dangerous and sometimes life-threatening — seizures and delirium tremens are real risks, and neither should be attempted alone at home after heavy, sustained use. Opioid withdrawal is rarely fatal but is severe enough that most people cannot get through it without medication support, which is why medication-assisted treatment with buprenorphine or naltrexone is often started early.
Stimulants such as cocaine and methamphetamine, and cannabis, generally do not require medically managed withdrawal, though the crash — exhaustion, depression, intense cravings — is real and benefits from clinical support. Many people in these categories start directly in an outpatient level of care.
The dangerous gap: finishing detox with no next step
The days right after detox are the highest-risk window in the whole process. Physical symptoms have eased, confidence is high, and nothing about the underlying condition has been treated yet. Tolerance has also dropped sharply, which makes an overdose after return to use far more likely with opioids and alcohol than it was before detox.
The single best predictor of what happens next is whether a specific next appointment exists — a scheduled PHP or IOP start date, a psychiatry visit, a medication plan — before discharge. Not a phone number to call later. A date.
How the handoff should work
- Assessment and insurance verification happen while you are still in detox.
- Your PHP or IOP start date is scheduled before discharge, ideally within 24 to 72 hours.
- Medication for opioid or alcohol use disorder is started in detox and continued, not restarted from scratch.
- Records and the discharge summary transfer to the outpatient team.
- A family member or support person knows the plan and the schedule.
We coordinate exactly this handoff. If you or a family member are currently in withdrawal management somewhere in the DC region, call us before discharge so the step down is scheduled rather than improvised.
Where to start
If you are unsure whether you need detox, an assessment answers it quickly and safely. Take the level of care assessment or call (571) 586-2883. In-person programming is at our Alexandria, VA center, serving Virginia, Maryland, and Washington, DC; virtual care is available to people located in Virginia. If you are in immediate danger, call 911, and for a mental health or substance use crisis call or text 988.
Frequently asked questions
- What is the difference between detox and rehab?
- Detox, or medically managed withdrawal, is short-term medical care that gets substances out of your system safely — usually three to seven days. Rehab is the treatment that follows: therapy, psychiatry, medication, and skills work that address why the substance use started and how to stay in recovery. Detox stabilizes the body; rehab treats the disorder.
- Do I need detox before rehab?
- Not always. Detox is medically necessary when withdrawal poses real risk — most commonly with alcohol, benzodiazepines, and high-dose opioid use. Many people with stimulant, cannabis, or lower-level substance use begin directly in partial hospitalization or intensive outpatient care after a clinical assessment.
- How long does detox take?
- Medically managed withdrawal typically runs three to seven days depending on the substance, the amount, and how long it has been used. Alcohol and benzodiazepine detox can be longer because tapering must be done carefully. Post-acute symptoms such as sleep disturbance and mood changes can persist for weeks and are addressed in treatment, not detox.
- What happens if I only do detox and skip rehab?
- Return to use is common. Detox removes the substance but does not change the triggers, coping patterns, untreated mental health conditions, or environment that drove the use. Detox also lowers tolerance, which makes an overdose after return to use significantly more dangerous with opioids and alcohol.
- Does insurance cover detox in Virginia?
- Yes, when it is medically necessary. Commercial plans and Virginia Medicaid ARTS cover medically managed withdrawal, typically with prior authorization. We verify detox coverage as part of the same benefits check we run for our outpatient programs.
- Do you provide detox at your Alexandria center?
- We are an outpatient center offering PHP, IOP, virtual IOP, outpatient therapy, psychiatry, and medication-assisted treatment. When someone needs medically managed withdrawal first, we refer to trusted, vetted providers, coordinate the admission, and hold a spot for the step down into our programs.
Talk with our admissions team
A benefits check takes about five to ten minutes and there is no obligation to enroll. We are in-network with major commercial plans and can tell you what your policy covers before you commit.