Which medication is preferred for treating infections caused by non-penicillinase producing Staphylococcus?

Explanation

Penicillin G remains the drug of choice for infections caused by Staphylococcus strains that do not produce penicillinase. Other antibiotics like ampicillin, erythromycin, and methicillin sodium are used in different scenarios, but Penicillin G is preferred for this specific type of infection.