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Has anyone whose taken Phen for quite a while noticed that your body becomes immune to it (loses its effectiveness)? I've taken Phen for several years and my Dr. told me that your body does build up a tolerance over time. Has anyone ever tried changing to a different diet med. (like Meridia) just temporarily, then gone back to Phen to see if it's effectiveness came back? I'm considering that choice, but don't want to go "backwards" in my weight if it doesn't work by switching diet meds every couple months.
:cool:
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