Biothrax Dosage

Biothrax can be injected into the muscle and under the skin.

Prevention of anthrax BEFORE potential exposure to B. anthracis

• Primary series: The typical dose is 1 injection into the muscle at month 0, 1 and 6 before potential exposure. If injected under the skin, the typical dose is 1 injection at week 0, 2, 4, and month 6 before potential exposure.
• Booster series: The typical dose is 1 injection into the shoulder muscle or under the skin on the shoulder 6 and 12 months after finishing the primary series. Then, it's given every 1 year thereafter.

Prevention of anthrax AFTER exposure to B. anthracis

• Primary series: The typical dose is 1 injection under the skin on the shoulder at week 0, 2, and 4 after exposure and usually combined with antibiotics.