Doxycycline is an oral antibiotic. The treatment course is one week.
If you or your partner have been diagnosed with chlamydia, the oral antibiotic Doxycycline can be an effective means of treatment. You cannot be prescribed this treatment if you have symptoms.
Please note, if you are allergic to Doxycycline, you will be prescribed an alternative antibiotic.
How to take it
- Take one dose, twice a day, for 7 days. Swallow the tablet with plenty of water.
- Doxycycline is best taken with food, or a glass of milk, and should be taken at least one hour before you go to bed.
- Complete the 7-day course of treatment to clear the infection.
- Do not have sex until you have completed all 7 days of treatment.
How it works
Doxycycline can be used to treat chlamydia by killing the bacteria that cause the infection.
When taken correctly, the treatment will kill the bacteria causing the infection. You should avoid sexual contact until you and any sexual partners have completed the course of antibiotics.
This medicine is not a vaccination. You must take precautions to avoid reinfection. Using condoms every time you have sex (oral, vaginal, anal) is the best way to make sure you do not get STIs.
The most common side effects include sensitivity to sunlight (exaggerated sunburn reaction), indigestion (inflammation or ulcers of the gullet) and, in women, vaginal thrush.
Important information about this medicine
Do not take Doxycycline if there is a chance of pregnancy, or if you are breast-feeding.
Do not take Doxycycline if you have chlamydia symptoms. You should attend your local sexual health clinic. Symptoms include:
Discharge/fluid from your penis
Painful or swollen testicles
Increase or change to vaginal discharge
Bleeding during or after sex, or between periods
Pain or burning on passing urine or passing urine more often
Pain, bleeding or discharge/fluid from your rectum/bottom
Pain in your lower abdomen/tummy
Genital sores or lumps
New joint pains
New eye symptoms (soreness, discharge, redness)
Do not drink alcohol while taking Doxycycline.
If you are taking other medication, you must let us know when asked in your consultation. If you are use antacid/indigestion medications, or medications containing iron, zinc or bismuth, you must four hours between taking that medication and Doxycycline.
If you are allergic to Doxycycline, you may be prescribed Azithromycin as an alternative treatment.
Testing for STIs
If you have not been tested already, it is strongly recommended that you test for STIs. If you are at risk or have been diagnosed with chlamydia, you are at high risk of other STIs. A basic STI screen tests for Chlamydia, Gonorrhoea, Syphilis and HIV.