De foreløbige undersøgelser, der sammenligner Oracea (40 mg doxycyclin) med 100 mg doxycyclin dagligt, begge samtidig med kutan behandling med metronidazol, underbygger hypotesen om, at Oraceas dosering ikke er underlegen.
In addition, the preliminary results of a study comparing Oracea (40 mg doxycycline) to 100 mg doxycycline daily, both in conjunction with topical metronidazole, support the non-inferiority hypothesis of the Oracea dosing regimen.