As someone who gets drug tested occasionally, having had the same concern, research and actually holding the “negative” results in my hand from the initial screen positive, to the ultimate NEGATIVE confirmation test, let me put this to bed,
5mg Selegeline 100% cannot be mistaken for illicit drug use or “identified” as Selegeline.
Yes, it produces low levels of metabolites that appear as “amphetamine” on INITIAL screening tests.
So do THOUSANDS of over the counter products. That result is NEVER considered a positive for a drug test or prompts questions.
Results look exactly like (at much lower levels than these produce):
•. Many Pre-workout powders
• Vicks inhaler use
• pseudoephedrine cross-reactivity
• ephedrine-containing supplements
• herbal stimulant cross-reactivity
The sample will automatically go to confirmation testing, this is routine and happens with 10%+ of initial screening tests because they appear “amphetamine” positive.
GC-MS / LC-MS/MS confirmation testing then sees minuscule amounts of LEGAL metabolite:
L-methamphetamine
Illicit methamphetamine is D-isomer.
Because you only produce the L-isomer, the lab immediately categorizes it as:
NOT illicit methamphetamine / amphetamine
NOT specifically Selegeline
NOT consistent with abuse of any drug
Consistent with over the counter products listed above and does NOT trigger any questions or further inquiry. It happens all the time, is routine, and most people wouldn’t even know what they used that caused it if asked.
Confirmation results will say:
“Detected methamphetamine is exclusively L-isomer, non-illicit source.”
And be considered a negative drug test.
This all occurs silently within the lab and never reported as “well it might be positive for xx so we’re checking”. It happens far too often to “set off alarm bells”. Results are only reported once confirmation is complete (usually right away) and just comes back as a negative report.
