Examples
| Generic Name | Brand Name |
|---|
| doxycycline | Vibramycin |
How It Works
Doxycycline is an antibiotic that prevents the development of
parasites in the blood that cause
malaria. Doxycycline does not destroy the
Plasmodium (P.) vivax and/or
P. ovale parasites that may remain in the liver.
You take doxycycline as a tablet (orally).
To prevent malaria, you take doxycycline 1 to 2 days before you
travel to an area where malaria is present, daily while you are in the area,
and daily for 4 weeks after you leave the area.
To treat malaria, doxycycline is usually used along with quinine
sulfate for 7 days.
Why It Is Used
Doxycycline is used to prevent malaria:
- In chloroquine-resistant areas (where
chloroquine is no longer effective against the parasite) when you cannot take
mefloquine (for example, because of side effects).
- If you will be
traveling in certain areas of Thailand.
How Well It Works
Doxycycline is effective in the prevention of malaria.
Side Effects
Side effects of doxycycline are common and include:
- Stomach upset and
nausea.
- Diarrhea.
- Vaginal yeast infection (yeast
vaginitis).
- Sensitivity of the skin to sun exposure (severe
sunburn) and of the eyes to light (photosensitivity).
Side effects may be relieved if you take the medicine with
meals.
See Drug Reference for a full list of side effects. (Drug Reference
is not available in all systems.)
What To Think About
Do not use doxycycline if you are pregnant. It is not used for
children younger than age 9 because it may stain their teeth.
Complete the
new medication information form (PDF)
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to help you understand this medication.