(Biocolyn, Doryx, Monodox,
Doxycycline is an antibiotic of the
tetracycline family used for many
infections, including STIs, and pelvic and
Important: Do not take with milk, other
dairy products, or antacids. Do not take
just before lying down. Take while sitting
up and with lots of water to prevent the
irritation this medicine can cause.
Side effects: Diarrhea or upset stomach.
Some people get a rash after staying in
the sun. May cause yeast infection in
women, or a rash on a baby or child’s
Often comes in: Tablets of 50 and
How to use:
For chlamydia, take 100 mg by mouth
2 times a day for 7 days.
For syphilis when the genital sore is
still visible, take 100 mg by mouth
2 times a day for 14 to 21 days.
For drug combinations for vaginal
discharge or PID, see page 162.
For pressure sores or other skin
infections, take 100 mg by mouth
2 times a day for 14 days.
For infection after childbirth, take
100 mg by mouth 2 times a day until
fever has been gone for 2 full days.
Other medicines that may work:
For syphilis: benzathine penicillin,
For gonorrhea: cefixime, ciprofloxacin
For chlamydia: amoxicillin, azithromycin,
For skin infection: dicloxacillin,
erythromycin, penicillin, tetracycline
For infection after childbirth:
WARNING: Pregnant and
breastfeeding women should
not take doxycycline. Do not use
doxycycline that has been in the sun or has
passed the expiration date.
A Health Handbook for Women with Disabilities 2007