Methaqualone Testing

Examples: Quaalude, Sopor

Medical uses: Once used as a sleeping pill/sedative, now methaqualone is
virtually never used for medical purposes.

Effects attractive to abuser: Same as that for barbiturates (see above)

Adverse effects: Same as that for barbiturates (see above)

How abused: Pills taken orally.

Typical urine detection cutoff level: 300 ng/mL

Period detectable after last dose: up to 90 hours, depending on dose

Substances causing false positive results: none reported.