any member of the subphylum Crustacea (phylum Arthropoda), a group of invertebrate animals consisting of some 45,000 species distributed worldwide. Crabs, lobsters, shrimps, and wood lice are among the best-known crustaceans, but the group also includes an enormous variety of other forms without popular names.
It is thought that infrequent, low-dose users may test positive for Xanax within urine for up to 4 days post-ingestion. Frequent, high-dose users of the drug may test positive for Xanax after a full week post-ingestion via a urinalysis. Results from a urinalysis can be confirmed with technology such as GC/MS.
As for duration of action of up to 6 hours, 6 to 12 hours is the half-life period of Xanax. That is, after this length of time, one half of the taken dose is still present in your system. After another 6 to 12 hours, a half of this half is still present, and so on.How long Xanax will stay in your system cannot be predicted for sure. It depends on the system, different people respond in different ways. One 0.5mg dose may need 3 to 5 days to be almost eliminated.hronic use (6 months or more of daily use)of Xanax can take as long as 4-6 weeks to completely detox. Recreational use is usually 3-5 days depending on body weight, mg's take â¦ n, duration of use, etc.