Since the last post on antivirals, I have found that Valaciclovir is available at the 'Breakspear' and am to start the drug immediately. I was initially offered Aciclovir, but as I have previously explained, Valaciclovir is more absorbable and hence what I have requested to use. The oral bioavailability of Valaciclovir is ~55% compared to ~10-20% for that of Aciclovir. Dr Lerner's treatment for ME/CFS that commenced from EBV, used Valaciclovir over a prolonged period for as long as 36 months. If I was to use Aciclovir it could take approximately three to five times longer to achieve the same results, so even though it is slightly more expensive the decision was easy.