Skip to Content

What do you mean by the half life of a drug?

Answers (1)

29 Sep 2011

The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value.

For example: The half-life of Ambien is about 2 hours.
If you took a 10mg Ambien tablet at 8pm then by 10pm there would be 5mg remaining in your system and by 12pm there would be 2.5mg in your system and so on and so on...

Search for questions

Still looking for answers? Try searching for what you seek or ask your own question.

Similar questions

Hair drug test and hydrocodone?

I twisted my ankle badly a few days ago i was in severe pain. I had an old bottle of hydrocodone in the house so it took half of one to relieve the ...

1 answer 14 Apr 2010

Drug Test - What is the half life of amphetamines?

My daughter must take a drug test and i found out she took some adderal. how long will that stay in her system??

3 answers 11 May 2010

What do you do when you get a *false positive on a drug test?

Who do you turn to??? I am going to nursing school to be an RN... Recently (last week) we had a drug test done, Mine came back positive for ...

4 answers 3 Nov 2011

What is the half life of lamictal?

My husband has been on this med for month and a half about 2 weeks ago his muscles started drawing up. The er said to stop taking it. What is the ...

2 answers 28 Sep 2014

How long will it take for 6000mg of nuerotin to be cleared from my system?

I know it has a half life of something like 5-7 hours (5.5× elimination half life). But it's all kinda confusing to me.

1 answer 11 Apr 2015