For example, from 2007 to 2010 I was on blood pressure medication Ramipril with absolutely no
problems. In May 2011 I was asked to go back on them because my BP was borderline, but
for reasons unknown, they gave me lots of chest pains. At first nobody knew what it was, but after three days I stopped the Ramipril and the pains stopped. So even the same medication we have taken at some point in the past can have different results.