How Long Is Rehab for Drugs and Alcohol Addiction?

Those considering drug and alcohol rehab typically have many questions about how it will impact their lives. One of the most commonly asked questions is, how long is rehab for drugs and alcohol?

The answer to this question is complicated. How long rehab takes can vary significantly from person to person depending on many factors.

Many people ask, how long is rehab? Here, we explain common timelines—and how to know what’s right for you.

Common Rehab Program Lengths

The length of rehab can vary depending on the type of treatment program you’re enrolled in. Psychiatric mental health nurse practitioner (PMHNP) Valerie Puffenberger says, generally, you can expect the following:

• Intensive outpatient programs (IOPs) and partial hospitalization programs (PHPs) – Anywhere from 2 weeks to 45 days
• Residential/Inpatient rehab – 30 days
• Long-term residential – 6 to12 months
• Sober houses – 1 to 2 years

Most rehabs can help clients for shorter or longer periods than their standard program lengths depending on the needs and capabilities of the patient.

Rehab Program Duration Comparison

Factors That Affect the Length of Rehab

Many factors impact how long rehab takes. One of the first steps in treating an addiction is helping the patient detox, which takes time. Layered on top of that are personal, situational, need-based, and program-based factors that can also affect the total length of rehab.

The Detox Process in Rehab

Withdrawal is the collective name for many unpleasant, dangerous, and sometimes even fatal symptoms that occur when a person either stops using the substance that they are dependent on or reduces their dose. To help patients get through withdrawal safely and comfortably, rehab professionals have developed the detox process.

Medically supervised detox uses several medications and other therapies to alleviate or eliminate the symptoms of withdrawal. Medical and psychiatric monitoring are also critical parts of detox. Exactly what treatments are used in detox will vary from patient to patient based on their needs and a variety of other factors.

How long detox lasts will also vary from patient to patient. However, generally, medically supervised detox will only last as long as acute withdrawal (when the greatest number of and most severe withdrawal symptoms are present). For most patients, acute withdrawal will last between one and three weeks.

👉 According to the National Institute on Drug Abuse (NIDA), treatment lasting 90 days or longer is linked to better recovery outcomes.

Personal factors that affect how long rehab is

Personal factors that affect how long drug and alcohol rehab can take include:

• Patient’s age
• Patient’s weight
• Patient’s gender
• Patient’s genetic makeup
• Patient’s ability/desire to stay in rehab for longer
• Any co-occurring mental health disorders
• Any co-occurring substance use disorders
• Any co-occurring medical conditions or diseases

Situational factors that affect how long rehab is

Situational factors that affect how long drug and alcohol rehab can take include:

• The substance or substances that were the focus of the use disorder
• How long the substance use disorder has lasted
• The age that the substance use disorder started
• How much of the substance the patient used
• How severe or strong the substance use disorder was
• The patient’s insurance plan and what they cover
• What sources of funding are available
• The patient’s outside responsibilities

Need-based factors that affect how long rehab is

Need-based factors, which are tracked and assessed by treatment staff, that affect how long drug and alcohol rehab can take include:

• How effective treatment has been
• Whether the patient prepared to handle sobriety outside of rehab
• Whether the patient is aware of their triggers and can handle them appropriately
• Whether the patient is aware of underlying causes of addiction and handle them appropriately
• How the patient will handle daily responsibilities outside of rehab

Program-based factors that affect how long rehab is

Program-based factors that affect how long drug and alcohol rehab can take include:

• Policies and procedures of the treatment facility
• The space available in the program
• The classification of the program (e.g., IOP or PHP)
• Local governmental laws or ordinances
• Medical guidance and judgment provided by treatment staff members

Inpatient Rehab vs. Outpatient Rehab

There are thousands of different rehab programs throughout the country, and each one is dramatically different from the next. However, most rehab programs fall into one of two general categories: inpatient and outpatient rehab.

Inpatient rehab requires patients to reside in a treatment facility where they attend treatment sessions. Outpatient rehab requires patients to reside elsewhere and come to a facility for treatment sessions several days a week for several hours at a time.

• Inpatient alcohol rehab length – Standard inpatient rehab is 30 days, but long-term inpatient programs can last 6–12 months.

• Outpatient rehab length – Typically lasts 2 weeks to 45 days, with some programs extending up to 90 days.

Pros and Cons of Inpatient Rehab

The pros of inpatient rehab include:

• Provides the greatest likelihood of successful and lasting recovery
• Allows patients to fully focus on their recovery and getting their life back in order
• Provides the opportunity for 24/7 medical and clinical monitoring
• Separates patients from triggers, enablers, and other underlying causes of addiction
• May be desired or required for professional or legal reasons

The cons of inpatient rehab include:

• Often significantly more expensive than outpatient rehab
• Makes it difficult or impossible for patients to continue to meet personal, professional, financial, legal, or familial responsibilities
• Require patients to be in a specific location

Pros and Cons of Outpatient Rehab

The pros of outpatient rehab include:

• Typically, significantly less expensive than inpatient rehab
• Allows patients to continue meeting daily responsibilities while attending treatment
• There are online outpatient rehab options that do not require patients to be in a specific location
• Outpatient programs generally allow patients greater flexibility

The cons of outpatient rehab include:

• Lower likelihood of a successful and lasting recovery than inpatient rehab
• Patients are less able to fully focus on their recovery
• Patients may not be separated from triggers, enablers, and other underlying causes of addiction
• Does not allow for around-the-clock medical and clinical monitoring
• May not meet patient’s personal, professional, or legal needs

Paying for Rehab: Insurance Coverage and Costs

As a result of the Affordable Care Act (also known as the ACA or Obamacare), substance abuse and mental health services must be covered by health insurance plans. However, different plans offer significantly different levels of coverage.

The only way to know what your plan covers and what you’ll owe is to contact the rehab facility you are interested in.

However, insurance is not the only way to pay for rehab. Some other options that might be available to you include:

• Self-pay
• Private payment
• Grants
• Scholarships
• Charitable funding
• Governmental funding

Aftercare & Long-Term Support

Recovery doesn’t end when rehab does. Many patients continue with:

• Outpatient programs (IOP, PHP)

• Sober living homes (6–24 months)

• Family therapy and counseling

• Relapse prevention plans

• Alumni programs & peer support groups

These services help maintain sobriety and reduce relapse risk.

Learn More About Your Rehab Options

Every individual is different, and so is every substance use disorder. Every patient will have specific treatment needs and deserves treatment that is specially tailored to them. Luckily, Legacy Healing Center is dedicated to helping patients regain their sobriety and maintain it for the long-term.

We use a holistic approach that heals the mind, body, and spirit through clinical therapy, evidence-based therapies, medication management, family therapy, luxury rehab options, and aftercare planning.

Call 954-271-9962 today to speak with a treatment staff member about how long rehab could take for you and how our programs help on your path to recovery.

How Long Does Rehab Last? FAQs

How long does rehab typically last?

Rehab length depends on personal, situational, and program-based factors. On average, treatment may last from 2 weeks to over 12 months, depending on the type of program and individual needs.

How long does drug rehab usually last?

Drug rehab can range from 2 weeks to 90 days or longer. Short-term programs are available, but many patients benefit from extended care for long-term recovery.

Is 30 days enough for rehab?

A 30-day rehab program is a common starting point and can be effective, but research shows that 60–90 day programs generally provide stronger long-term outcomes.

What factors affect the length of rehab?

The length of rehab is influenced by several factors, including:

• The type and severity of addiction

• How long the addiction has lasted

• Co-occurring mental health or medical conditions

• Whether detox is required

• Insurance coverage and financial resources

What is long-term rehab?

Long-term rehab usually refers to residential programs lasting 6 months to a year or more. These programs are often recommended for severe addictions or for those who have experienced multiple relapses.

Does outpatient rehab take less time than inpatient?

Yes. Outpatient rehab programs are generally shorter, lasting 2–12 weeks, while inpatient rehab typically requires 30–90 days or longer for more intensive support.

What happens during detox in rehab?

Detox is a medically supervised process where withdrawal symptoms are managed with medications, clinical monitoring, and emotional support. It usually lasts 1–3 weeks, depending on the substance and patient needs.

Will my insurance cover the cost of rehab?

Most insurance plans cover some form of addiction treatment due to federal mental health parity laws. However, coverage varies, so it’s best to contact the treatment center directly to verify benefits.

Does choosing a rehab location affect success?

Yes. A local rehab offers convenience, while a destination rehab may help patients separate from triggers. The right choice depends on personal needs, support systems, and recovery goals.