BOF: 169
A 55-year-old male is on azathioprine to maintain
remission of Crohn’s disease. He has attended the cardiovascular risk clinic
and has been started on allopurinol as he has been noted to have a high uric
acid level.
He asks you whether he should take allopurinol and your
reply is:
a)
There is no interaction between allopurinol and azathioprine
b)
Allopurinol potentiates toxicity of azathioprine
c)
Azathioprine potentiates toxicity of allopurinol
d)
Allopurinol reduces bioavailibilty of azathioprine
e)
Azathioprine reduces bioavailibilty of allopurinol