Re: Deworming question again - Dr. Kellon
Several sources list the half life of Praziquantel at 0.8 to 1.5 hours with elimination form the body in 24 hours.
For horses with an unknown deworming history and posssible very high burden, general recommendation is to start with invermectin, three doses total, given over two week intervals.
More info in the fILES
Nancy C in NH
ECIR Moderator 2003
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