VETERANS: Swift River is proud to offer a specialized Veterans Treatment Program. Call 413-570-9698 or click to learn more about our VA treatment.

Live Out Your Best Future

Take the first step toward addiction treatment by contacting us today.

How Long Does Promethazine Stay in Your System?

Street names for promethazine include purple drank, lean, and dirty Sprite

Promethazine is a prescription medication used to treat allergies, motion sickness, nausea, vomiting, and difficulty sleeping. It belongs to a class of drugs called phenothiazines. While it’s safe and effective when used as prescribed, it also has the potential for misuse and addiction. If you or a loved one is struggling with promethazine use, it’s important to understand how this drug works and how long it remains in the body. Swift River, a leading drug and alcohol addiction treatment center in Western Massachusetts, is here to help.

What Is Promethazine and How Does It Work?

Promethazine is an antihistamine that works by blocking histamine, a natural substance produced by the body during an allergic reaction. This helps relieve symptoms such as itching, runny nose, watery eyes, and sneezing. Promethazine also has sedative effects. It works on the brain to decrease nausea, vomiting, and motion sickness. These calming properties are why some people misuse it for its euphoric and relaxing high. The drug comes in tablet, syrup, and liquid form. Street names include purple drank, lean, and dirty Sprite.

How Long Does Promethazine Stay in Your System?

Several factors affect how long promethazine remains in your system:

  • Metabolism: People with faster metabolisms clear the drug more quickly.
  • Dosage: Higher doses take longer to metabolize.
  • Frequency of use: Regular, long-term use causes the drug to accumulate in your body.
  • Age: Older adults tend to clear promethazine more slowly.
  • Liver and kidney function: These organs filter the drug from your body. Any impairment can slow removal.

In general, promethazine has a half-life of 16-19 hours. This means it takes that amount of time for half a dose to leave your system.

Drug tests can detect promethazine in your body for a certain period after last use:

  • Urine: up to 2-3 days
  • Blood: up to 24 hours
  • Saliva: up to 2-3 days
  • Hair: up to 90 days
Promethazine is a prescription medication used to treat allergies, motion sickness, nausea, vomiting, and difficulty sleeping
Promethazine is a prescription medication used to treat allergies, motion sickness, nausea, vomiting, and difficulty sleeping

The Risks of Promethazine Misuse

While promethazine is safe when used properly, taking it in ways not prescribed by a doctor can be dangerous. Misusing can cause:

  • Drowsiness and dizziness
  • Slowed breathing
  • Blurred vision
  • Confusion and disorientation
  • Chemical dependence and addiction

Promethazine is often combined with opioids, alcohol, and other illicit drugs to intensify their effects. This greatly increases the risk of severe complications like respiratory depression, overdose, and death.

Swift River: Compassionate, Evidence-Based Addiction Treatment

If you’re struggling with addiction, know that recovery is possible. At Swift River, we provide compassionate, evidence-based treatment for substance use disorders and co-occurring mental health conditions.

Our experienced staff will work with you to develop an individualized treatment plan that fits your unique needs and goals. Through a combination of medical detox, counseling, and holistic therapies, you’ll gain the tools and support to overcome addiction and build a healthy, drug-free life.

Don’t wait another day to get the help you need. Call Swift River at 413-570-9698 to learn more about our programs and take the first step toward lasting recovery.

Contact Swift River Now

Recent Posts

Working the 12 steps of AA can improve the outcomes of your recovery
Alcohol

AA Meetings Near Me: Finding Support in Massachusetts

Searching for an AA meeting takes courage, whether you’re looking for yourself or for someone you love. The fact that you got this far counts for something. Massachusetts has a deep network of Alcoholics Anonymous meetings, with thousands of groups gathering each week in church basements, community centers, hospitals, libraries,

Read More »
The 12-step program can help you overcome alcohol addiction. At Swift River, our clinical staff tailor's a program around your needs.
Addiction Therapy

Is Rehab Covered by Insurance in Massachusetts? Costs & Laws 

Recent changes to Massachusetts insurance laws are making rehab more affordable for everyone in the Bay State. Wondering how you’ll pay for a loved one’s rehab should not be a barrier to your family seeking the care they need. In Massachusetts, rehab is often covered by insurance, making treatment far

Read More »
From medically supervised detox to ongoing treatment and aftercare planning, Swift River offers a full continuum of care
Sober Living

Life After Rehab: Rebuilding Your Future

Life after rehab is equal parts possibility and uncertainty. You did the hardest thing: you asked for help, you showed up, and you did the work. Now the real world is back, with all its old pressures, damaged relationships, and open questions about what comes next. That disorientation is normal.

Read More »
Knowing what to do after a relapse is the first step toward reclaiming your health. Learn how to handle a setback and find support today.
Addiction Treatment

What to Do After a Relapse: Your Next Steps in Recovery

Relapse comes with a lot of feelings like shame and fear. It is important to know that your journey has not come to an end. A confidential conversation with our team costs nothing and carries no obligation. We are here to help you navigate this moment with compassion rather than

Read More »