Barbiturates in urine – qualitative

• Barbiturates can be detected in urine for 4-7 days after ingestion.
• The patient does not need to fast.
• The patient typically collects urine into a vacuum container, then tightens the cap and peels off the sticker. Under the sticker is a hole for the included collection tube. The patient then places the collection tube on the designated hole, and the tube automatically draws in the urine. The patient brings this collection tube for analysis, and the patient disposes of the large container containing excess urine.
  If the sample submitted is insufficient, the laboratory reserves the right to cancel the analysis.
• The tube containing the collected material must be signed.
• Before collection, intimate hygiene should be maintained (the material is collected after washing the genital area, but disinfectants should not be used).
• Urine can be stored in the refrigerator for up to 3 days.

Barbiturates are drugs that act on the central nervous system, often used therapeutically as hypnotics and sedatives.
Barbiturates are almost always taken orally as lozenges or capsules. Taking barbiturates with alcohol increases their toxic effects.
Long-term use of barbiturates can lead to tolerance
and physical dependence.
Taking 400 mg of barbiturates daily for 2-3 months can cause physical dependence.
Only a small amount (less than 5%) of most barbiturates is excreted unchanged in the urine.

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