UserX
If I was mixing up my own formula from scratch, I'd do a
parasite cleanse at the same time as a bowel cleanse, as that will insure the dead
parasites are flushed out of the system.
The Blessed Herbs website says their internal cleansing kit gets rid of unwanted guests. So they can probably tell you how long to wait before taking it, or whether you can take it simultaneously.
Keep in mind that the companies selling these kinds of products often err on the side of caution, and you may need to take more than the recommended dose, in order to get a deep cleanse, if that is what you want. But just in case they don't, or in case you are extremely toxic, it is always wise to start with a lower than recommended dose, and slowly build up to the amount you need, to get the results you want.
http://www.youtube.com/watch?v=4adzAODBCek