1. Plural of doxycycline; a class of broad-spectrum antibiotics derived from tetracycline, used to treat bacterial infections and certain parasitic diseases.
Usage: medical/pharmaceutical term; typically used in plural when referring to multiple formulations or doses

Examples

• The doctor prescribed doxycyclines to treat the patient's respiratory infection.
• Doxycyclines are commonly used to prevent malaria in travelers.
• Several doxycyclines are available in both oral and intravenous forms.
• The patient took doxycyclines for two weeks to clear the bacterial infection.
• Doxycyclines have been effective against Lyme disease when administered early.