A systematic review of the impacts of oral tetracycline class antibiotics on antimicrobial resistance in normal human flora 

  07 March 2022

There is interest in doxycycline as prophylaxis against sexually transmitted infections (STIs), but concern about antimicrobial resistance (AMR). We conducted a systematic review (CRD42021273301) of the impact of oral tetracycline-class antibiotics on AMR in normal flora.

Although the effects are modest and transient, limited data from small prospective studies may suggest that oral tetracyclines for 2–18 weeks increase resistance in subgingival, gastrointestinal and upper respiratory tract flora. STI prophylaxis trials should include AMR in commensal bacteria as study outcomes.
Author(s): Robinson Truong, Vincent Tang, Troy Grennan, Darrell H. S. Tan
Healthy Patients  


Unrestricted financial support by:

Antimicrobial Resistance Fighter Coalition


JSS University


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