Originally I got valacyclovir for mouth sores, but once I realized that it kills borrelia I bought some more from InhousePharmacy and ADC.
https://www.healingwell.com/community/default.aspx?f=30&m=4304866https://www.healingwell.com/community/default.aspx?f=30&m=4313527https://www.healingwell.com/community/default.aspx?f=30&m=4327214Truvada contains emtricitabine and tenofovir. Emtricitabine has the same chemical structure as lamivudine except one hydrogen atom replaced with fluorine, and has largely the same effect. I haven't tried it, but I assume it would work the same as lamivudine. So if you can get Truvada cheaply, you might as well use that.
In vitro research found that borrelia burgdorferi is vulnerable to ganciclovir
https://www.ncbi.nlm.nih.gov/pmc/articles/pmc4790293/However, ganciclovir or valganciclovir has a much higher reported rate of side effects than valacyclovir, so usually this is not used unless the alternatives are not working.
Another forum member reported no effect from valacyclovir at a low dose, but suddenly got a herx when she upped the dose.
https://www.healingwell.com/community/default.aspx?f=30&m=4339109Maybe some strains of borrelia are better at DNA repair than others. I got a very severe herx at a very low dose, so I would recommend starting at a low dose just in case.
Also be aware that these drugs can cause blood clotting
https://www.healingwell.com/community/default.aspx?f=30&m=4342467https://www.healingwell.com/community/default.aspx?f=30&m=4345365The specific mechanism seems to be that borrelia gets into the endothelium and dies there, triggering an inflammatory response that leads to the autoimmune disorder and blood clots.
If I keep the borrelia suppressed with other antibiotics, then I can take valacyclovir and I don't have this problem.
This isn't specific to valacyclovir, there is at least one reported case with Truvada:
https://pubmed.ncbi.nlm.nih.gov/30840965/