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How long before Valtrex starts being effective in preventing transmission
I'm taking valtrex 1000mg every day to prevent viral shedding.  I'm curious how long I should be taking it before having sex with an uninfected partner (with a condom) to prevent transmission? I've been taking it for three days, and my partner is concerned it needs more time to build up in my system before it is effective. How long does it take before it starts working to prevent transmission?
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