What is Biothrax: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Biothrax overview

BRAND NAMES:

  • BioThrax

Generic Names:

  • Biothrax

Uses:

  • Prevents infections caused by anthrax. Used either before or immediately after possible exposure.

Therapeutic Classes:

  • Vaccine

Forms:

  • Injectable

How it’s taken:

  • By injection

What is Biothrax used for?

What form(s) does Biothrax come in

  • Injectable

What are common Biothrax doses?

  • Vial 5ML of

How to take Biothrax

  • A nurse or other health professional will give you this vaccine. The vaccine is given as a shot under your skin or into a muscle.

  • You will receive 1 dose of the vaccine to start, and then you will be given the rest of the doses in the series at specific times. Some possible schedules are as follows: 1 and 6 months after the first dose, 2 and 4 weeks after the first dose, or 2 and 4 weeks plus 6 months after the first dose. Your doctor should tell you what your personal schedule is.

  • You might also need booster doses, usually at 6-month or 12-month intervals.

  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

  • Missed dose: Injection routeCall your doctor or pharmacist for instructions. This medicine needs to be given on a fixed schedule.

  • Missed dose: Injection routeCall your doctor or pharmacist for instructions. This medicine needs to be given on a fixed schedule.

  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.

  • A nurse or other health professional will give you this vaccine. The vaccine is given as a shot under your skin or into a muscle.

  • You might also need booster doses, usually at 6-month or 12-month intervals.

  • You will receive 1 dose of the vaccine to start, and then you will be given the rest of the doses in the series at specific times. Some possible schedules are as follows: 1 and 6 months after the first dose, 2 and 4 weeks after the first dose, or 2 and 4 weeks plus 6 months after the first dose. Your doctor should tell you what your personal schedule is.

What to do if you miss a dose of Biothrax

Biothrax contraindications

  • This vaccine is not right for everyone. You should not receive it if you had an allergic reaction to the anthrax vaccine, or if you are pregnant.

Biothrax warnings

  • This vaccine is not a treatment for an anthrax infection. You will need additional medicine if you have already been infected.

  • Tell your doctor if you are breastfeeding, or if you have bleeding problems, a weak immune system, or a history of anthrax infection. Tell your doctor if you are allergic to rubber, latex, aluminum, benzethonium chloride, or formaldehyde.

  • It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.

Biothrax interactions

  • Tell your doctor if you are breastfeeding, or if you have bleeding problems, a weak immune system, or a history of anthrax infection. Tell your doctor if you are allergic to rubber, latex, aluminum, benzethonium chloride, or formaldehyde.

  • This vaccine is not a treatment for an anthrax infection. You will need additional medicine if you have already been infected.

  • Some foods and medicines can affect how the anthrax vaccine works. Tell your doctor if you are using any of the following: Blood thinner (including warfarin)Medicine that weakens your immune system, including a steroid, cancer medicine, or radiation treatment

Biothrax side effects

Serious Side Effects

  • Blistering, peeling, red skin rash

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Pain, redness, tenderness, swelling, itching, or a lump where the shot was given, or limited arm movement

Less Serious Side Effects

  • Muscle aches or tiredness

  • Headache

  • Pain, redness, tenderness, swelling, itching, or a lump where the shot was given, or limited arm movement

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