I would just like to let people know that it appears I have been able to finally defeat Giardia, with the use of Fenbendazole for a period of 5 days @ 30mg/kg.
These little devils had been causing me nightmares for more than a year, I had tried Simplotan (Tinidazole) on two separate occasions and got about 1 week relief each time.
I cannot, of course, recommend that anyone take the medicine as it hasn't been approved for human use.
I can tell you, however, that in the studies I have read that the compound is not absorbed into the blood and passes through the system taking the badies with it. The reason it is not approved I hear is that it caused liver damage to rats in a study where ridiculously high doses were administered.
It has worked when nothing else would with zero side effects, period.