I modsætning til højere, antimikrobielle doser af doxycyclin, der kan medføre udvikling af resistens og opportunistisk overvækst, bekræfter langvarige erfaringer med doxycyclin 40 mg/ dag, at denne dosis tolereres godt ved langvarig behandling.
In contrast to higher, antimicrobial doses of doxycycline that may lead to the development of resistance and opportunistic overgrowth, long-term clinical trial experience with doxycycline 40 mg/ day confirms the good tolerability of doxycycline at this dose level during prolonged treatment.