Hos fire patienter med zidovudinresistente isolater in vitro, bevaredes modtageligheden for nevirapin og hos 6 patienter med nevirapinresistente isolater, bevaredes modtageligheden for zidovudin og didanosin.
In four patients, zidovudine-resistant isolates tested in vitro retained susceptibility to nevirapine and in six patients, nevirapine-resistant isolates were susceptible to zidovudine and didanosine.