Pharmacology The drug used to treat acyclovir resistant Herpes Simplex Virus (HSV) and Varicella Zoster Virus (VZV) infection is : A Foscarnet B Valacyclovir C Abacavir D Ganciclovir 💡 Explanation The drug used to treat acyclovir resistant Herpes Simplex Virus (HSV) and Varicella Zoster Virus (VZV) infection is : ✓ Correct Answer: A. Foscarnet