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How Long Does Klonopin Stay in Your System?

Klonopin, also known by its generic name clonazepam, is a prescription medication that belongs to a class of drugs called benzodiazepines. It’s frequently prescribed for the treatment of seizure disorders and panic attacks. Sometimes, doctors also prescribe Klonopin for off-label uses such as insomnia, restless leg syndrome, and alcohol withdrawal. Those wondering how long does Klonopin stay in your system should keep reading to learn more about this addictive and dangerous drug.

Klonopin is one of the most commonly prescribed benzodiazepines in the United States. It also carries abuse potential. There has been an increasing trend in the abuse of prescription benzodiazepines like Klonopin, often used recreationally for its sedative effects.

Klonopin has the following street names:

  • K
  • K-pin
  • Super Valium
  • Pin
  • Sleepers
  • Chill pills
  • Planks


Due to its potential for addiction, Klonopin is a Schedule IV Controlled Substance. For that reason it should be used with caution, under the guidance of a doctor. If you or a loved one are struggling with Klonopin addiction, treatment is available.

What Does Klonopin Do?

Klonopin primarily works in the brain, more specifically on the central nervous system. It enhances the effects of the neurotransmitter gamma-aminobutyric acid (GABA). GABA is an inhibitory neurotransmitter, meaning it reduces the activity of neurons, leading to calming effects on the brain and body.

The result is a feeling of calm in the user. This makes it effective for treating anxiety and seizures.

Here are some common side effects of Klonopin:

  • Drowsiness
  • Cognitive impairment
  • Muscle weakness
  • Blurred vision
  • Mood swings
  • Dependency and withdrawal symptoms

In severe cases, Klonopin side effects may include severe respiratory depression, especially if combined with opioids or alcohol. You can also overdose on Klonopin and end up in a coma. In some cases, this can be fatal.

Because of these risks, Klonopin should be used exactly as prescribed by your doctor.

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Is Klonopin Addictive?

Like other benzodiazepines, Klonopin can be addictive. Klonopin has the potential for both psychological and physical dependence. Psychological dependence comes from how it enhances GABA activity, leading some to crave that feeling of calm.

With prolonged use, the body becomes physically dependent on the drug to function normally, leading to withdrawal symptoms when the drug is reduced or stopped. This dependence can drive continued use to avoid uncomfortable withdrawal symptoms.

Withdrawal symptoms of Klonopin include:

  • Anxiety
  • Insomnia
  • Irritability
  • Seizures
  • Tremors
  • Muscle spasms
  • Excessive sweating
  • Persistent or severe headaches.
  • Nausea and vomiting
  • Hallucinations
  • Depersonalization – Feelings of detachment from oneself or the environment
  • Hypersensitivity to light and sound.
  • Mood swings
  • Difficulty concentrating, memory problems, and confusion.
  • Increased heart rate
  • Dizziness


Abruptly stopping Klonopin can be dangerous, especially without medical supervision. It is important to work with a healthcare provider to safely taper off the medication if it is no longer needed.

If you or someone you know is struggling with Klonopin addiction, seeking professional help is essential.

How Long Does Klonopin Stay in Your System?

The half-life of Klonopin is typically between 30 to 40 hours. This means that it takes about 30 to 40 hours for the body to eliminate half of the drug. Based on this half-life, it generally takes approximately 5 to 14 days for Klonopin to be completely eliminated from the body.

How long Klonopin stays in your system exactly will depend on factors such as metabolism, age, sex, and Klonopin dosage.

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Klonopin Treatment at South Coast Behavioral Health

If you or a loved one are seeking treatment for Klonopin addiction, South Coast Behavioral Health is here to help. The first step in treating addiction is a Klonopin detox. This means using drugs to manage withdrawal symptoms.

Our medical detox program in California is staffed by caring and compassionate professionals who can provide you with medications to manage your withdrawal symptoms.

At South Coast, we take pride in offering care that is closely tailored to specific issues. To that end, we offer gender-specific detox programs, with medical detox for men in Irvine, CA, and medical detox for women in Huntington Beach, CA.

After detoxing, proper treatment can begin.

Treatment for substance abuse takes place along an entire spectrum of care. Along that entire spectrum are various behavioral therapies, support groups, and the use of medically-assisted treatment (MAT).

These levels of treatment are, in order, as follows:

Residential Treatment in California

After detoxing from Klonopin, you’ll receive inpatient treatment in Orange County California. There, you’ll receive medically-assisted treatment and dual diagnosis treatment to deal with any cravings or co-occurring mental health issues you may be battling.

We also offer residential treatment facilities in Costa Mesa, Irvine, and Huntington Beach for those who desire gender-specific treatment. There, patients get round-the-clock medical attention and monitoring while living at the institution full-time.

In addition to individual and group counseling and medication management, you’ll also have access to leisure activities and family support services.

Partial Hospitalization in California

Most clients start substance abuse treatment with South Coast in our residential treatment program. After completing that, many desire something that still provides structure and support, but with extra space and time to oneself. For that, we offer Partial Hospitalization in Newport Beach.

A step down from inpatient care but with more structure than conventional outpatient programs, partial hospitalization offers a good balance for those looking to ease back into normal life.

Clients can receive care five to seven days a week for a number of hours each day, returning back to their homes in the evening.

This way, they can recover without putting their daily lives completely on hold, receiving intense therapeutic interventions like group and individual therapy, skill development, and medication management as necessary.

Intensive Outpatient Treatment in California

For those leaving inpatient residential treatment or partial hospitalization, intensive outpatient programs (IOP) are yet another gradual step forward on the road to recovery.

With a focus on group therapy, individual counseling, and education, clients undergoing Intensive Outpatient Treatment in Newport Beach can meet three to five days a week. Each session lasts three hours.

This level of care requires the least amount of attendance at a facility.

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If you or a loved one are struggling with alcohol addiction but wonder how long addiction treatment takes or have other questions, call us at 866-881-1184 or contact us here. Our highly qualified staff will be happy to help give you an idea of what to expect from your addiction recovery timeline, help verify your insurance, and assist with any other questions you may have.