I am a 73yo man and I am suffering from a prostate problem.This has led to me not being able to pass urine and I have had a catheter fitted.This happened once before.I take 400mg Tamsulosin daily at present.I have has this condition for over two years.On the two occasions I have had to have a catheter fitted it has followe a bout of drinking beer.I do not dtink much,in fact twice in two tears has led to this condition. I look forward to your reply.