From the nhs website. It's good enough for me.
Which whooping cough vaccine will I be given?
As there is no whooping cough-only vaccine, the vaccine you'll be given also protects against polio, diphtheria and tetanus. Until July 2014, a vaccine called Repevax was used, but from July 2014 the vaccine you'll be offered is called Boostrix IPV.
Boostrix IPV is similar to the 4-in-1 vaccine – the pre-school booster that's routinely given to children before they start school.
Why is Boostrix IPV replacing Repevax as the recommended vaccine?
Repevax and Boostrix IPV both protect against whooping cough, diphtheria, tetanus and polio, but they are made by different manufacturers.
The vaccine has changed from Repevax to Boostrix IPV because Public Health England (the organisation that selects which vaccines to buy and use) has judged it delivers the best value to the NHS. To select which vaccine to buy and use, Public Health England uses a rigorous process for the selection in line with European Union (EU) legislation.
But the manufacturer's leaflet says there's no information on the use of Boostrix IPV in pregnancy. Should it be used in pregnancy?
The licence for Boostrix IPV allows for its use in pregnancy when clearly needed, and when the possible benefits outweigh the possible risks.
It is standard practice with most medicines not to test them on pregnant women. This is why the manufacturer's information leaflet includes this statement, and not because of any specific safety concerns or evidence of harm in pregnancy.
Pertussis-containing vaccine has been used routinely in pregnant women in the UK since October 2012 and the Medicines and Healthcare Products Regulatory Agency (MHRA) is carefully monitoring its safety. The MHRA's study of around 20,000 women vaccinated with Repevax found no evidence of risks to pregnancy or pregnancy outcome.
Boostrix (similar to Boostrix IPV but without the polio component) is one of the vaccines routinely recommended in the US for immunisation of pregnant women. Experience in the US has identified no safety concerns with the use of the vaccine in pregnancy.
There is no evidence of risk to the pregnant woman or unborn child with inactivated vaccines like Boostrix IPV. An inactivated vaccine is one that does not contain "live" vaccine. You can find out more about inactivated and "live" vaccines.