Smoking affects your ability to have children, the amount of time it takes to conceive and can cause infertility in men and women
Its diagnosis requires prior exclusion of other causes, including optic nerve compression, inflammation, infection and drug toxicity (ethambutol, disulfiram, etc.)
32-34 Newer Drugs Newer oral agents such as valacyclovir (Valtrex, GlaxoSmithKline, Philadelphia, PA), which is the prodrug to acyclovir, and famciclovir (Famvir, Novartis, East Hanover, NJ), which is the prodrug to penciclovir (Denavir, Prestium Pharma, Newtown, PA), have increased bioavailability relative to oral acyclovir and have produced systemic concentrations nearly equal to those obtained with intravenous acyclovir, 35 achieving systemic levels greater than the in vitro 50% inhibitory concentrations of VZV, HSV-1 and HSV-2