Doxycycline may induce diarrhea.
Common side effects include diarrhea, nausea, vomiting, abdominal pain, and an increased risk of sunburn
 The best available evidence indicates that doxycycline has little or no effect on hypoplasia of dental enamel or on staining of teeth and the CDC recommends the use of doxycycline for treatment of Q fever and also for tick-borne rickettsial diseases in young children and others advocate for its use in malaria

