Antibiotic Treatment Guidelines
Recommendations for Use
- The CDC recommends doxycycline for oral treatment of various infections, including plague and avian chlamydiosis, with either formulation being suitable 1, 2
- The American Academy of Dermatology recommends doxycycline for inflammatory acne 3
- Doxycycline is considered a first-line treatment for bubonic plague 2
Safety and Administration
- Short-term courses (≤21 days) of doxycycline have not shown evidence of dental staining or enamel hypoplasia in children, regardless of formulation 2
- Doxycycline hyclate is generally cheaper than doxycycline monohydrate, making it a cost-effective option, with a retail price of approximately $660 in the United States for generic tetracycline, and doxycycline being even cheaper 4
- The Centers for Disease Control and Prevention, American Gastroenterological Association, and American Academy of Dermatology recommend doxycycline hyclate for various infections, including sexually transmitted infections, Helicobacter pylori, and acne vulgaris 5, 6, 4, 7
- The American Gastroenterological Association advises against substituting doxycycline for tetracycline in bismuth quadruple therapy for H. pylori due to inferior results 4
- The American College of Physicians and the Centers for Disease Control and Prevention recommend doxycycline hyclate delayed-release 200 mg tablet once daily as the preferred formulation for most infections due to better tolerability and improved adherence 8, 5
Clinical trials have shown comparable efficacy between once-daily delayed-release 200 mg and twice-daily standard 100 mg doxycycline, with fewer GI side effects in the delayed-release group, including:
Side Effect Delayed-Release Standard Nausea 13% 21% Vomiting 8% 12% - Patients should be counseled about photosensitivity risk with all doxycycline formulations, and doxycycline monohydrate may be considered for patients with sensitive stomachs or a history of GI issues due to its better tolerance and fewer GI side effects 8
- The Centers for Disease Control and Prevention recommends doxycycline hyclate for sexually transmitted infection prophylaxis at a 200mg dose, and as an alternative regimen for chlamydial infections 8, 9