The recommended doxycycline dosage in people who have been exposed to anthrax or who have a diagnosed active anthrax infection is 100 mg, taken twice a day for 60 days. Smaller children older than 8 years of age can be given 2.2 mg per kilogram of body weight, up to 100 mg, taken twice a day for 60 days.
General Doxycycline Dosage Information
General information for people taking doxycycline includes the following:
Doxycycline should be taken at the same time each day to maintain an even level of the medication in your system.
Doxycycline works best when taken without food. However, it can be taken with food if it upsets your stomach.
Drink a full glass of water with each dose.
For doxycycline to work properly, you have to take it as prescribed.
Make sure that you complete your entire prescription of doxycycline, even if you start feeling better. This will ensure that the infection is completely treated.
Do not break, chew, or crush the doxycycline capsules or tablets.
If you are unsure about anything related to doxycycline or your doxycycline dosage, talk to your doctor, nurse, or pharmacist. Do not stop taking doxycycline without first discussing it with your healthcare provider.