The liquid is more effective, the pills take a minimum of 5 days to kick in. To date, there have been no known side effects, but it's not something you want to take 24/7/356 becuase it gives you a hyper-immune system. It is recommended to take when you start feeling a cold coming on. But pills might not work as effectively to make you feel better because the pills take a while to get into your system. If you insist on the pills, I recommend you take a week on the pills, then two weeks off, a week on, two weeks off. And when you feel a cold coming on, take it for the duration of the cold (whether it's 2 weeks or 4 weeks that it lasts). If you can get the liquid (and they've got some stuff out there that is pretty good tasting-sweet, but good) it's better because it works righ taway.
-This "post" was from Mark, I was reading it to him. and then being his transcriptionist <img src="i/expressions/face-icon-small-smile.gif" border="0"> (His dad owns a health food store and he's worked there since he was 15)