I use Albueterol. I want to use Xopenex for less cardiac side effects, but it's not availible in inhaler form. Albueterol makes me go into a sinus tachycardia rhythm if I take a lot of it during a bad attack. However, I'm pretty sure albueterol is the only one availible in an inhaler.

I also suffer from horrible cardiac side effects from Albuterol. I have found that I am only able to take one puff of albuterol. If I take the full two puffs, then my heart rate sky rockets to 150 - 160 and it feels as if it is going to jump out of my chest.
As far as breathing treatments, I definitely do better with the Xopenex than the Albuterol. The Xopenex does increase my heart rate up to 130- but still much better than the 150 - 160.
But like was said before, Xopenex is not available in Inhaler form.

I switched from albuterol to maxair for unrelated reasons, but was glad to discover that maxair had far less cardiac side effects for me than albuterol. It is more expensive, but has twice as many inhalations, so you don't have to get it refilled very often. Also isn't xopenex coming out sometime soon in inhaler form? I thought that I had read that somewhere.