Sounds like he's doing all of the right things. Beta blockers (class of drugs that include metoprolol and inderal) are still the mainstay of medical treatment at this time. Tilt training or repeat tilt table testing (about 2 sessions/day for a four week period - but variable with each patient) has also been shown to be effective. An older, but still helpful technique is to raise the entire head of the bed 45 degrees (from the floor, not just raising the pillows). Supposedly it increases circulation to the adrenal glands to put out more aldosterone, which promotes sodium retention and thus theoretically helps to maintain blood pressure (or something to that effect). Finally, if everything fails or he is not getting the desired effects despite maximal medical treatment, a permament pacemaker may be considered. Good luck.