How Often Should Hepatitis-B Vaccination Be Taken?

Posted on Thu, 9 Jul 2015

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Thu, 9 Jul 2015 Answered on

Sat, 12 Jul 2025 Last reviewed on

Question : Sir I have taken 2 doses of hepatatis b and that is confirmed but not sure about 3 dose which taken on 6 month?i have taken these 2 doses at age of 9 and now 25!!sir I want to know whether I take full dose or just a single dose??and does that vaccination cause any harm or it will be perfect normal because I'm not sure whether third dose is taken or not??if I have taken that dose will there is any harm in taking vaccination full dose again?

And sir last month I have taken rabies vaccination does it interact with it?

Answered by Dr. Anshul Varshney (21 minutes later)

Brief Answer:
Get Hepatitis Antibodies tested.

Detailed Answer:
Welcome To Ask A Doctor. I understand your concern.
First of all there is no significant interaction between Hepatitis B vaccine and rabies vaccine.
Hepatitis B vaccination schedule is 0,1 and 6 month. No booster dose is indicated.
However you should get testing done to see levels of Hepatitis B protective antibodies in your body.
The concerned tests is known as Anti HbS Antibody levels.
If the levels are appropriate means you are protected while if not then you would require a booster dose.
I hope it helps.
If you have any further query, kindly reach out
Regards.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Anshul Varshney (9 minutes later)

Sir if without any test I opt for booster dose will it cause any harm?

And sir I really appreciate your answers as previous answer are really helpful!!!thanking u for that!!and sir please clear my doubt regarding tetanus dose its provide immunity for 5 years or 10 years because doctors have difference opinion on this?

Answered by Dr. Anshul Varshney (11 hours later)

Brief Answer:
You should get tested first

Detailed Answer:
Hello, The Tetanus Toxoid shot that you take mostly provides immunity for 6 months only.
The DPT vaccine that is given during childhood provides immunity for up to 10 years.
As far as booster dose of hepatitis b is concerned, it is not indicated. You should first of all get the test done, and if the antibodies are low, in that case only a booster dose is given.

Regards.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Anshul Varshney (35 minutes later)

Thanks for your advice sir!!sir today I have taken tetanus shot as my injury is 45 days old doctor told me there is no harm in taking vaccination now also is that true?there is no problem if I take that shot now also!!and today I went for the that test after report I contact you?thanking you!!!

Answered by Dr. Anshul Varshney (27 minutes later)

Brief Answer:
No problem.

Detailed Answer:
Hello, This tetanus vaccine is not going to protect your for the previous injury that you had. However, your doctor is right. There is no harm in taking the shot.

Regards.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Anshul Varshney (30 minutes later)

Ok thank you sir I directly approach u after my reports out!!sir it is sure that this one shot not do any harm at all?because I haven't had injury right now but have taken because my doctor told me for that?and after report collection I contact u!

Answered by Dr. Anshul Varshney (1 minute later)

Brief Answer:
Won't harm

Detailed Answer:
Hello, Tetanus shot will just boost up your immunity and not going to cause any harm. Don't worry in that regards.
Take Care.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar