Wondering if anyone has tried a pulsed regimen for antiviral meds (Valtrex, Valcyte etc.), or if anyone knows in theory whether there's a good reason not to pulse? I've used Valtrex off and on - I end up stopping because of signs of toxicity (e.g. excessive hair loss after shampoo - which usually means my liver isn't happy). It also makes my pee smell, even on a lowish dose (1 g./day). After awhile, I also start to doubt it's having the benefits I experienced initially. So I've stopped and started up again a number of times now. Each time I restart the benefit (relief of fatigue) is dramatic. So I'm leaning towards intentionally pulsing - maybe 4 days on and 3 days off. Any thoughts?