dave,

i see the point that in many countries (here also) it is not allowed to make medicine treatment by ordinary people ...however, as a certified trainer i think that we have a door to make such treatments since most times it may be late...

i think that the said medicals are not harmful i.e. isordil and aspirine...

the most important fact is how to understand the typical sendroms of the heart attack (or anjino pectoris) since i believe that this may be headache for any trainer for any time in their lives :

-a stress feeling on the chest...
-pain ,pressure,burnings starting from the neck (behind) through deltoids & triceps down to the fingers...
-cold sweat...
-feeling that you are squezeed from sides...
-weight on the chest...

if you feel that there are some of them , f...k(!) the medical authorities and give those pills without hesitating (they can also taken by normal fellows without any doubt,harm,risk) ...the risk of those pills may be only during brain bleeding events since they are increasing the viscosity of the blood, but the appereances of this event are totaly different...we are trainers and are also responsible against the student at any time...

(another point is that over 35 the fellows would not train so hard ...)