Doxycycline is a type of antibiotic that belongs to a class of medications known as tetracycline class. It is used to treat bacterial infections such as respiratory infections, urinary tract infections, skin infections, eye infections, and sexually transmitted infections. Doxycycline works by preventing bacterial growth and spread in the body. It is frequently used to treat infections caused by bacteria resistant to other antibiotics, as well as to prevent malaria and treat acne. Doxycycline, like all antibiotics, can cause side effects such as nausea, diarrhoea, and skin rash. It can also make your skin more sensitive to sunlight, so use sunscreen when taking this medication. Furthermore, it may interact with certain medications and supplements, so inform your healthcare provider about all medications you're taking before beginning doxycycline.

Further information about the medication visit the link:

https://www.nhs.uk/medicines/doxycycline/