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How Long Does Klonopin Stay in Your System?

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How long does klonopin stay in your system? Klonopin (clonazepam) is a benzodiazepine medication known for its long-lasting effects in the body, staying in the system for up to 6 days.

When it comes to drug testing, Klonopin can be detected in different bodily fluids for varying periods:

How Long Does Klonopin Stay in the Urine

Klonopin can be detected in urine for about 4 to 6 days after consumption. In the event of chronic or heavy use, it may remain detectable for up to a month.

How Long Does Klonpin Stay in the Blood

Blood tests, typically conducted in medical settings, can detect Klonopin metabolites for about 5 to 6 days.

How Long Does Klonopin Stay in the Saliva

Saliva tests can reveal Klonopin use within 5 to 6 days after the last dose.

How Long Does Klonopin Stay in the Hair

Hair follicle tests have the longest detection window, capable of detecting Klonopin and its metabolites for up to 90 days (3 months) following the last dose.

These timeframes are approximate and can vary depending on individual factors and the sensitivity of the drug test being used. If you are taking prescribed Klonopin and need to undergo a drug test, it’s advisable to provide a doctor’s note to explain your legitimate use of the medication.

Klonopin Withdrawal

When someone takes Klonopin regularly for an extended period, their body can develop a physical dependence on the drug. When someone who is dependent on benzos stops or significantly reduces the dosage, this can lead to the presentation of withdrawal symptoms as the body adjusts to the absence of the medication. Dependence often but not always leads to addiction. 

Klonopin withdrawal symptoms can vary in intensity and duration, according to variables such as dosage, duration of use, and overall health. Withdrawal symptoms typically manifest within 1 to f4our days after discontinuing the medication and can persist for several weeks or even months. Common Klonopin withdrawal symptoms include:

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Anxiety & Panic Attacks

Since Klonopin affects the CNS (central nervous system) and helps regulate anxiety, sudden withdrawal can trigger heightened anxiety levels, leading to panic attacks, restlessness, and irritability.

Insomnia & Sleep Disturbances

People discontinuing Klonopin may experience difficulty falling asleep or staying asleep, leading to insomnia. Sleep disturbances can further contribute to increased anxiety and irritability.


Klonopin is primarily prescribed to prevent seizures, so sudden withdrawal can increase the risk of experiencing seizures, especially in those with a history of epilepsy or seizure disorders.

Muscle Aches & Pain

Withdrawal from Klonopin can cause muscle stiffness, aches, and general discomfort. These symptoms may be more pronounced in individuals who have been using the medication for an extended period or at higher doses.

Gastrointestinal Issues

Digestive problems such as nausea, vomiting, diarrhea, and loss of appetite can occur during Klonopin withdrawal. These symptoms can contribute to further discomfort and may require management to ensure adequate nutrition and hydration.

Cognitive & Psychological Effects

Klonopin withdrawal may cause cognitive difficulties, including poor concentration, memory problems, and confusion. Additionally, individuals may experience mood swings, depression, and increased irritability during this period.

Do You Have a Klonopin Addiction?

DSM-5-TR (Diagnostic and Statistical Manual of Mental Disorders, fifth revised edition), provides criteria to diagnose substance use disorder, including addiction to Klonopin. These criteria help identify individuals who may be struggling with Klonopin addiction. The criteria for diagnosing Klonopin addiction include: 

  1. Taking Klonopin in larger amounts or for longer than prescribed: This criterion applies to those who misuse or abuse Klonopin by taking higher doses or using it beyond the recommended duration.
  2. Wanting to cut down or stop using Klonopin but being unable to do so: Individuals who have a strong desire to reduce or quit Klonopin use but face difficulties in achieving that goal meet this criterion.
  3. Spending a significant amount of time obtaining, using, or recovering from Klonopin use: This criterion is satisfied by people who devote excessive time and effort to acquiring Klonopin, using it, or dealing with its aftermath, often at the expense of other important activities.
  4. Experiencing cravings and urges to use Klonopin: Individuals with Klonopin addiction may have intense and persistent desires to use the drug, leading to strong cravings and urges.
  5. Impaired functioning in various areas of life due to Klonopin use: This criterion applies to individuals who struggle to fulfill their responsibilities at work, home, or school because of their Klonopin addiction.
  6. Continued use of Klonopin despite negative consequences in relationships: Individuals who persist in using Klonopin despite it causing problems in their relationships with others meet this criterion.
  7. Giving up significant social, occupational, or recreational activities because of Klonopin use: This criterion is met by individuals who forego important social engagements, work-related commitments, or enjoyable activities due to their dependence on Klonopin.
  8. Using Klonopin even in hazardous situations: Individuals who repeatedly use Klonopin despite being aware of the potential dangers or risks to their well-being or safety meet this criterion.
  9. Continued use of Klonopin despite knowing it worsens physical or psychological problems: Individuals who persist in using Klonopin despite having knowledge of its detrimental effects on their physical or psychological health meet this criterion.
  10. Developing tolerance to Klonopin: This criterion applies to individuals who require increasingly higher doses of Klonopin to achieve the desired effect, indicating the development of tolerance.
  11. Experiencing withdrawal symptoms that can be relieved by taking more Klonopin: Individuals with Klonopin addiction may encounter withdrawal symptoms when attempting to reduce or discontinue its use. Taking more Klonopin alleviates these symptoms.

It is essential to differentiate between individuals who take Klonopin as prescribed by a healthcare professional and those who exhibit signs of addiction. These criteria help healthcare professionals evaluate the presence and severity of Klonopin addiction in individuals seeking assistance.

Get Treatment for Klonopin Addiction at Gratitude Lodge

At Gratitude Lodge in Southern California, we specialize in helping individuals struggling with Klonopin addiction and mental health conditions. Our pet-friendly rehab centers, situated in Newport Beach and Long Beach, CA, are dedicated to supporting whole-body recovery. 

We offer a supervised benzo detox program tailored to provide the safest and smoothest pathway for detoxification and ongoing recovery from Klonopin addiction. Once your system is rid of addictive substances, you can seamlessly transition into our comprehensive 30-day inpatient program. 

Our treatment programs for Klonopin addiction incorporate various interventions, including MAT (medication-assisted treatment), psychotherapy, group therapy, individual counseling, family therapy, holistic therapies, and aftercare support. We believe in a holistic approach to help individuals overcome their Klonopin addiction and achieve lasting recovery.

To embark on your journey from active Klonopin addiction to ongoing recovery, you can place your trust in Gratitude Lodge. For admissions and further information, please call us at 888-861-1658.

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The half-life of Klonopin (clonazepam) ranges from 30 to 40 hours, which means it takes that amount of time for half of the drug to be eliminated from the body.

The effects of Klonopin can last for 6 to 12 hours, depending on individual factors and dosage.

Clonazepam can be detected in urine for approximately 4 to 6 days after consumption, although this may vary based on factors such as dosage and frequency of use.

Clonazepam can stay in the system for a longer duration, with an estimated time of up to 6 to 9 days, considering its half-life and the elimination process.

The onset of action of Klonopin can typically be felt within 30 minutes, although individual responses may vary. The full effects may take longer to manifest.

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