Doxycycline is in a class of medications called tetracycline antibiotics
Intestinal infections Intestinal infections can be caused by viruses or bacteria
If any of these effects last or get worse, tell your doctor or pharmacist promptly
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The most common side effects of doxycycline are headaches, feeling sick or being sick
Doxycycline has been hypothesized to prevent development of severe mental illness (SMI) through the suppression of microglia, especially if administered