Benzodiazepines (BZO) are a class of drugs used to treat anxiety， insomnia， and other conditions. They work by enhancing the effects of the neurotransmitter GABA in the brain， which can result in relaxation and decreased anxiety.

The uncut sheet version of the BZO rapid test is a strip of paper that contains multiple test lines. When a sample of urine or blood is applied to the strip， it will change color if BZO is present in the sample. The number of lines that change color indicates the amount of BZO in the sample， with more lines indicating a higher concentration of the drug.

It is important to note that while the BZO Rapid Test Uncut Sheet can be a useful tool for detecting drug use， it is not always accurate. False positives and false negatives can occur， so it is important to confirm the results with a more reliable method of testing， such as a laboratory-based test. Additionally， the use of this test should always be done in accordance with local laws and regulations.