Posted by Elizabeth on June 30, 2001, at 1:49:00
In reply to Re: Benzodiazepine Tolerance, posted by rmshed on June 29, 2001, at 23:23:35
> Paul: My experience with benzodiazepines has been fairly text book. I maxed out several years ago taking 4mg of Xanax per day. That was considered a theraputic dose for me. It was hard to taper down to 2.25 mg per day that I am on now.
I guess I'm confused. *My* textbooks all say that panic and anxiety patients *don't*, as a rule, develop tolerance to benzos. But it sounds like you kept needing ever-increasing doses. Or am I reading you wrong?
> I read in a book called "Anxiety and Phobia Handbook" that the tolerance may be down in the liver.
I'm not convinced. Tolerance is usually thought to be centrally mediated, a result of receptor down-regulation. Also, people who are tolerant to, say, Xanax, don't have cross-tolerance to other drugs whose metabolism is mediated by the same enzymes.
> I have a very low level of GABA production and that it also takes awhile for the brain to produce more GABA.
Xanax doesn't increase the amount of GABA; it makes GABA more effective at what it does.
> Although most of this is way over my head, I know understand about the need to increase benzodiazepines.
Most anxiety patients don't need to increase their dose, actually. I never experimented with long-term round-the-clock benzo use, myself (the closest I've come was taking Klonopin for a month at 4 mg/day and taking Xanax about once or twice a week for six months or more).
> If I had it to do all over again, I would try to find another drug that works with anxiety and panic disorder, my body is dependent on benzodiazepines.
Dependence (the experience of withdrawal symptoms upon discontinuing benzos) is a normal response. It's not the same as tolerance, though.
-elizabeth
poster:Elizabeth
thread:68279
URL: http://www.dr-bob.org/babble/20010625/msgs/68449.html