, decay series. The series of isotopes that some radioactive elements change into as they undergo radioactive disintegration. The last element in the series is often a stable element (i.e., it is nonradioactive).
Making the world better, one answer at a time. Celexa has a 36 hour half life...meaning it will take 36 hours for 50% of the drug to leave your system and another 36 hours for it to be fully out of your system.Read more at the Related Link.f you were to smok â¦ e marijuana every day for a month, it would take approximately one month for the THC to get out of your system. On the flip side, if you only smoked a few times and quit, it take around two weeks or so.
Antidepressants such as Celexa may take several weeks, perhaps even more than a month, to start working. In most cases, the physical symptoms of depression (such as pain or changes in sleep patterns) will improve first, sometimes within the first few weeks of treatment. It usually takes at least four to six weeks before significant changes in mood occur. For Celexa to work properly, you have to take it as prescribed. The antidepressant will not work if you take it differently than your healthcare provider prescribes. The medication should be taken at the same time each day to maintain an even level in your blood. (Click Celexa Dosages for more information on when Celexa may start working, for detailed dosing guidelines for the treatment of depression, and for tips on using it safely.)