Doxycycline and Tooth Staining | CDC

• Doxycycline is the most effective antibiotic for the treatment of suspected rickettsial infections, including Rocky Mountain spotted fever (RMSF).Misperceptions about the use of doxycycline for children prevent kids from getting lifesaving treatment.
• Delay in treatment of rickettsial diseases may lead to severe illness or death. Children are five times more likely than adults to die from RMSF.
• Misperceptions about the use of doxycycline for children prevent kids from getting lifesaving treatment.
• Doctors often avoid prescribing doxycycline to young children because of a warning that tooth staining may occur when used in children less than 8 years old.
• In a new study, experts at the CDC and Indian Health Service (IHS) found that short courses of the antibiotic doxycycline can be used in children without causing tooth staining or weakening of tooth enamel.

https://www.cdc.gov/rmsf/doxycycline/index.html