Quick answer
Wild lettuce (lactucarium) is typically detectable in urine for not tested / no interference after any use. It is not part of standard employment panels.
Not screened on standard employment panels.
Typical cutoff: Never screened.
Detection window by test type
| urine | |
|---|---|
| Any use | not tested / no interference |
| saliva | |
| Any use | n/a |
| hair | |
| Any use | n/a |
| blood | |
| Any use | n/a |
Ranges reflect typical published detection windows and vary with dose, frequency, body composition, hydration and the assay used.
Key details
Despite the 'lettuce opium' nickname, wild lettuce contains NO opiates — lactucarium's sedative lactones are chemically unrelated and invisible to opiate strips and every other panel.
Frequently asked questions
How long does wild lettuce (lactucarium) stay in your system?
In urine, typical detection is not tested / no interference (any use). Hair can detect use for up to 90 days and saliva/blood windows are usually shorter.
Will wild lettuce (lactucarium) show up on a standard drug test?
No — Wild lettuce (lactucarium) is not part of the standard 5-, 10- or 12-panel or DOT tests. It would require a specialised or expanded assay.
How accurate are these detection windows?
They are typical ranges from published literature and assay documentation, not guarantees. Clearance depends on dose, frequency, metabolism and the specific test cutoff used.
Related substances
Cite this page
DrugPanels. “Wild lettuce (lactucarium) Detection Time.” https://drugpanels.com/detection/wild-lettuce/. Accessed 2026-09-10.
Sources
- Peer-reviewed literature (PubMed) — U.S. National Library of Medicine — pubmed.ncbi.nlm.nih.gov
- SAMHSA drug testing resources and analyte specifications — Substance Abuse and Mental Health Services Administration — samhsa.gov
Detection windows describe typical ranges from the published literature and assay documentation; individual results vary. See our methodology.