A thymocyte-derived lymphocyte of immunologic importance that is responsible for cell-mediated immunity. These cells have the characteristic T3 surface marker and may be further divided into subsets according to function, such as helper, suppressor, and cytotoxic. See also: B lymphocyte. Synonym(s): T cell.
2 How long doe flexeril take to be out of system for urine test? 90 hours.: The drug has a half-life of 18 hours, which means it will probably stay active in your body for 90 hours. Therefore, it will show up on drug tests for 3.75 days after you have taken it, but this time period may vary by individual.
If you used the drug intermittently for less than 2 weeks, discontinuation effects will be less noticeable. In any regard, you may notice some neurophysiologic adjustments taking place or feel the effects of Flexeril after youâve quit taking it, and may wonder how long it stays in your system.