How would you know, have you even compared the two through research?
Personally, Valtrex has not made much of a difference for me. I have found that traditional chinese meds have worked better. But to each their own, of course. Everyone has their own biochemistry.
I have researched Lupidon, and have ONLY POSITIVE RESPONSESD IN MEDICAL JOURNALS. I will include the published medical journal links below for you:
(there are 20 of them below and every single one has been positive.
Some Dr's have suggested more research so that I could be used everywhere. Of course, it has not been done in the USA, possibly because the big companies are making too much money right now with Valtrex. But that will change soon due to its epidemic nature.