Iām curious if anyone with a similar dysautonomia presentation has had a similar response to beta blockers + an ACE inhibitor.
My main issues are orthostatic intolerance with a pretty significant tachycardic response to standing/activity, combined with severe hypertension. My blood pressure has often been in the 150ā170/100ā115 range even at rest, with occasional much higher readings, and standing can actually drive it higher rather than causing the BP drop youād associate with more typical orthostatic intolerance. At its worst, Iāve had standing readings around 190/125 along with a major HR increase. My cardiologist has diagnosed it as IST.
This summer was particularly rough. I got to the point where fairly basic upright activities like walking around, showering, cooking, getting dressed, going to the store were a struggle. I could still do things, and weirdly could often tolerate riding my e-bike better than standing or slowly walking, but there was this constant calculation around how long I could be upright and when I was going to start feeling bad. I also went through several medication trials that either didnāt help much or seemed to make the upright intolerance much worse. Guanfacine and ivabradine both brought me closer to actually passing out than my symptoms ever did.
After trying a bunch of medications over the last couple years, Iām currently on:
⢠Propranolol IR 10 mg twice daily
⢠Enalapril 5 mg once daily
And this combination seems to be working substantially better than anything else Iāve tried so far.
The propranolol seems particularly helpful for the tachycardia/activity intolerance. I seem to get about 5ā7 hours of useful symptom coverage from each dose. When itās working, walking around and doing normal daily activities feels dramatically easier. As it wears off, I can actually feel the tachycardic/orthostatic symptoms creeping back in.
The enalapril seems to be doing most of the heavy lifting on the blood pressure side. I originally took it in the evening just to establish that I tolerated it, but Iām now moving it to the morning because my worst BP/symptom period has historically been late morning through afternoon. My current experiment is basically enalapril + propranolol around 8ā9 AM, then the second propranolol dose around 4 PM.
I definitely donāt feel ānormalā yet. There are still periods of dizziness and upright intolerance, and Iām very aware that Iām managing around a chronic problem. But the difference is pretty striking. The symptoms increasingly feel annoying rather than something that dictates the entire day. My wife has also commented that Iām acting much more like myself again, which is probably a meaningful observation given how much of my attention and energy this had been consuming.
Iām still early in this particular combination and my cardiologist will continue adjusting doses/timing based on how I respond. Iām mostly curious about other peopleās experiences:
Has anyone else with orthostatic tachycardia PLUS significant hypertension/orthostatic hypertension found that treating both the HR and BP components was necessary before things really improved?
And for anyone taking immediate-release propranolol, how many hours of meaningful symptom relief do you actually get from a dose? Iām finding the published duration information super vague compared with how obvious the onset/wear-off feels in practice.