Three weeks I had a tilt table test and to make a long story short, when I was tilted at 70 degrees my heart rate went down to 37. I will never forget the sensation that I had that day. Earlier today, I felt the same sense of sickness in my stomach and I started feeling dizzy like something was going to happen. Luckily, it didn't. The cardiologist that ordered this test put me on Levsin but the literature says its for abdominal pain and spasms. I guess I really don't have a clue to what's happening. Its been my hope to be weaned off the dilantin. I have been told that bradycardia can often cause symptoms that look like seizures. Has anyone else experienced this before? I have to admit I'm frightened. Any insight would be helpful.
One quick thing smitty....the reason the cardiologist put you on the levsin (hyoscyamine)is because it is an anti-cholinergic agent. You're right about what you read in the literature, but you have to remember that the same drug can be used for different purposes in the body because similar chemical processes can be occurring in different conditions.
The cardiologist, it looks like, has determined that your cause for syncope (fainting) is due to an exaggerated vasovagal response. This exaggerated response is part of the "parasympathetic nervous system", and this branch of the nervous system works through acetylcholine. The Levsin, as I said is an anticholinergic...i.e. it blocks acetylcholine and that is why you have been put on it.
Sorry. Pushed the wrong button. Thank you for your reply. I talked to my cardiologist Tuesday and you basically backed up what she said. My wife is having trouble with me taking new medications. Two years ago my regular doc put me on ultram for pain. It lowered my seizure threshold and I had seizures. I asked her if this would interact with my other meds (zoloft and dilantin) and she told me it shouldn't. So right now, I'm satisfied with her answer however my wife isn't.
Not sure if she will ever be comfortable.