Opioids

How long do opiates stay in your system?

Last updated:
July 15, 2025

The half-life for opiates can range from 1-9 hours, depending on how much you take and which type. For instance, the half-life of morphine is 1.5-6.5 hours, the half-life of codeine is 1-4 hours, and the half-life of hydrocodone is 3.5-9 hours The amount of time that opiates can be detected in your system relies on the type of test.

On this page
Related topics

Addiction Assessment

Book a FREE Confidential Assessment at Your Nearest Rehab Centre

What is an opiate antagonist?

Rehabilitation from alcohol can be one of the most challenging addiction recovery journeys. Let us show you how to succeed.

Read more
Chemical formula of heroin molecule, illustrating the substance's composition|Diagram illustrating the cycle of heroin addiction: taking a dose, feeling great, experiencing withdrawal, and repeating, with emphasis on breaking the cycle through rehab and treatment|Circular diagram illustrating comprehensive heroin rehab and treatment services, including assessment, evidence-based treatment, substance use monitoring, case management, recovery support, and continuing care, surrounded by supporting services like vocational, mental health, and family services|Close-up of hands clasped together, symbolizing support, trust, and compassion in heroin rehab and treatment programs|Therapist with clipboard counseling a patient during a heroin rehab and treatment session, focusing on supportive communication in addiction recovery|Infographic showing immediate effects of heroin use (drowsiness, euphoria, small pupils, nausea, overdose) and long-term consequences (dependence, dental problems, social issues, infections, infertility) emphasizing the need for heroin rehab and treatment|Graph comparing treatment evaluation for hypertension and addiction, highlighting the need for ongoing care in heroin rehab and treatment, showing different severity patterns over time
Heroin Treatment & Rehab

Rehabilitation from alcohol can be one of the most challenging addiction recovery journeys. Let us show you how to succeed.

Read more
Is there an Opioid Epidemic in the UK?

Rehabilitation from alcohol can be one of the most challenging addiction recovery journeys. Let us show you how to succeed.

Read more
Close-up image of drug paraphernalia including a syringe, spoon, and an outstretched arm, illustrating the harsh reality of heroin addiction
Is Heroin an opiate?

Rehabilitation from alcohol can be one of the most challenging addiction recovery journeys. Let us show you how to succeed.

Read more

Ready to start?
We're here for you