I think you can likely count on this being a true negative. But really, I wouldn’t advise taking this any longer if, in the future, you want to test again because it will always be confusing. We don’t know what the impact of intermittent use of Valtrex, like you have done, on testing, honestly. But if you have been off of it for any three month period in a row, I think it’s fine to rely upon the negative.
Terri