If you can't get your hand on Alpha-Blockers, then perhaps you might consider:
Aspirin Low Dose - It'll thin your blood, which is a preventative measure for those with hypertension, tachycardia, etc. to protect against the formation of blood clots, which, worst case scenario can cause a stroke.
Coenzyme Q10 - Apparently, this antioxidant can also lower blood pressure modestly, and it has a blood thinning effect to boot. In fact, it's contraindicated in patients who are on blood pressure and blood thinning meds.
Xanax - The only reason why I list this benzodiazepine by brand name (rather than all benzos) is because, according to a study by Coronary researcher John D. Folts and his co-workers at the University of Wisconsin-Madison, adding alprazolam (Xanax) to a low dose acetylsalicylic acid (Aspirin) preventative therapy regimen could prevent arterial blood clots that lead to heart attacks.
In 1978, Folts and his co-workers at the University of Wisconsin-Madison, discovered that giving aspirin to dogs with narrowed coronary arteries did not prevent heart attacks if the dogs also had high blood levels of the hormone epinephrine. He found that epinephrine contributed to heart attack risk by promoting the aggregation of platelets, the blood cells that drive clotting.
Aspirin helps prevent blood clotting by binding to a specific receptor on the platelet surface. But it does nothing to reduce anxiety-driven heart attacks, because epinephrine -- the "fight-or-flight" hormone associated with anxiety -- does not act on platelets through the same receptor, Folts explains.
His team has now tested alprazolam and 10 dogs treated with aspirin for several days and then given an infusion of epinephrine. Only one dog developed clotting in the coronary arteries (coronary thrombosis), Folts reports. But when the same dogs received only aspirin before the epinephrine infusion, seven of the 10 developed the heart-threatening blood clots. Similarly, dogs given only alprazolam alone showed no reduction in coronary thrombosis.
Aspirin plus alprozolam "apparently shows complete protection" from heart-attack-causing blood clots, Folts asserts. Alprazolam's protective effect does not result solely from its mood-calming capacilities, he maintains, citing studies at the University of Texas Southern Medical Center in Dallas, in which aspirin combined with the sedative diazepam (Valium) did not ward off coronary thrombosis in patients recovering from heart attacks. Folts suggests that alprazolam acts by blocking platelet-activating factor, a clot-inducing protein produced by cells lining the blood vessels.
Source -
http://www.thefreelibrary.com/Anti-anxiety+drug+may+help+nix+heart+attacks.-a010808891
I have been using a combination of Xanax + Aspirin Low Dose for about 4 and 1/2 years now, and while I cannot prove beyond a reasonable doubt that it works, indeed it did seem to help me considerably (alleviated pounding/racing heart sensations as well as any anxiety/panic), particularly when using potent stimulants, such as blow, dextroamphetamine, etc.
