famvir

I mentioned in a previous post that I take famvir 2x250mg first, then 1x250mg for 3 doses spaced 12 hourly.
I took my initial 2x250mg when i noticed symptoms, however that was at 1pm in the afternoon, therefore my next scheduled tablet was supposed to be at 1am, however i have work early in the morning so i slept through until 7am and took the tablet then 18 hours later). I was then forgetful and didn't take the 3rd dost until 10pm at night (15 hours later). I was wondering much of an effect (or lack of effect) it has if i mistime my treatment like this? I will be more careful in future, but will the treatment still get rid of my outbreak, or will the prolonged periods between doses make it so that the outbreak will continue longer than usual?