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.
I took fioricet a few times, around 9 pills. How long will it stay in my system? From wikipedia Butalbital has a half-life of about 35 hours... does that mean in 70 hours I'll pass? Butalbital is the barbiturate in fioricet... show more I have a drug test between Oct. 1 and Oct. 15, unknown when as of now. I took fioricet a few times, around 9 pills. How long will it stay in my system? From wikipedia Butalbital has a half-life of about 35 hours...