Doxycycline is prescribed to treat urinary tract infections and a number of other conditions caused by multiplying bacteria. When combined with some other drugs it is also used for the treatment of amoeba infections. Doxycycline works by helping your immune system to destroy the bacteria by making it weaker. Do not combine this medicine with other drugs unless your doctor recommended you so. Doxycyline makes it easier for you to get sunburned. Make sure you apply sunscreen with sufficient sun protection factor (at least 15) and avoid tanning booths, sunlamps to prevent a sunburn.

If you ever had an allergic reaction to this medicine do not take it, as it is likely to repeat. Doxycycline is not intended for patients younger than 8, as otherwise permanent teeth discoloration may occur. This drug can harm an unborn child and was found in breast milk of breastfeeding mothers. If you are pregnant or breastfeeding, you must talk to your doctor before starting to take doxycycline to learn about potential risks for the baby. Get emergency medical assistance if you experience the following serious side effects: trouble swallowing, persistent headache, vision changes, chest pain, bloody stools, throat irritation, easy bruising and bleeding.