Breenn Posted April 16, 2015 Share Posted April 16, 2015 In general, do larger doses last longer than smaller doses ? Link to comment Share on other sites More sharing options...
jt07 Posted April 16, 2015 Share Posted April 16, 2015 The half-life is constant, but there will be more medicine left in your blood from a larger dose after 1 half-life than there will be from a smaller dose. Link to comment Share on other sites More sharing options...
dancesintherain Posted April 16, 2015 Share Posted April 16, 2015 So to take jt's point and give an example (because that's what I was thinking too)....say drug X has a half life of 5 hours. If you take 100 mg, then after 5 hours 50 mg will be left, after 10 hours 25 mg will be left, and so on and so forth. If you take 50 mg to start with, then after 5 hours 25 mg will be left, after 10 hours 12.5 mg will be left, etc. I'm 95% sure that's how that phenomenon works. Link to comment Share on other sites More sharing options...
crtclms Posted April 16, 2015 Share Posted April 16, 2015 I think that's how it works, too. It's how you build up a blood level, if you take the med again when you are at 50 or 25% after (as our example) 5 or 10 hours. Link to comment Share on other sites More sharing options...
Siggmin Posted April 16, 2015 Share Posted April 16, 2015 I agree. A lot of medicines have to build up in your blood and body, before they will work, so that all makes sense. Link to comment Share on other sites More sharing options...
melissaw72 Posted August 16, 2015 Share Posted August 16, 2015 I agree. A lot of medicines have to build up in your blood and body, before they will work, so that all makes sense.^^ I second this. Link to comment Share on other sites More sharing options...
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