I've been taking two 100mg doxycycline everyday for about 2 months and have used about 1.5 grams of MXE during that time. No adverse reactions to report.
most drugs are metabolized by the CYP enzyme. taking MXE during a course of antibiotics cause the drugs to remain in your system longer than they should. your best bet is to just remain sober until your course of antibiotics is complete. also, dont stop taking your antibiotics until all of them are finished as this can lead to super strains of bacteria. antibiotics are nothing to be fucked with