"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."
How do you know it was Giardia? And that you did not get rid of with Tinidazole in the first place?
Why do you think you were continued to be sick with Giardia? Did each time your stool tests prove that you did not get rid of Giardia?
Otherwise you cannot say with assurance that you got rid of Giardia and not something else....