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Patient Information Leaflets (PILs)

These Patient Information Leaflets (PILs) are specially written by the British Association of Dermatologists (BAD).

Please note:

  1. There are thousands of different skin complaints, therefore, the focus of the British Association of Dermatologists' PILs production is on the most common, rarest or debilitating skin conditions.
  2. The offer to provide details of source materials used to inform the British Association of Dermatologists' PILs is for instances where the advice provided in the PILs does not reflect local practice and therefore evidence supporting said advice needs to be produced. It is not an offer to conduct literature searches or supply bibilographic materials for your own research.

For the latest BAD advice on Covid-19 for patients, please check the News and Media section of the website. Find this here. Our information for healthcare professionals is here.


  • Azathioprine has been available since the 1960s and was initially developed to stop the body from rejecting transplanted organs, such as kidneys.
  • It is now also used to treat a wide range of illnesses.
  • It works by suppressing the body’s own immune system, either by itself or in combination with other drugs.
  • Azathioprine is not a steroid and is considered to be safer for longer term use than high doses of steroid tablets.

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