How should 100 mg doxycycline be taken to treat a urinary tract infection?

Doxycycline 100 mg should be taken once or twice a day, depending on the severity of the infection.

- It should be taken with a full glass of water and at least one hour before or two hours after eating dairy products, antacids, or iron supplements, as these can interfere with its absorption.

- Doxycycline should be continued for at least 7-10 days, or as directed by your doctor.