I've had the same problem, but it has developed over the last 2 years. Also, my sense of smell has totally disappeared, and I wonder if that's what's happened to you too--most taste is actually augmented by smell (I think over 80%). I've got a good ENT, but we can't trace the loss to any particular drug/event. I haven't been on many IV antibiotics, and merepenem didn't seem to have any good or bad effect. Sorry, probably doesn't help, but maybe you should check with an ENT with some experience with CF. No harm in trying. (It's not just CF people with this issue, some estimates are as high as 5% of the population has a significant smell/taste loss with no apparent obvious source.)
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<br />Lead Husky
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<br />Lead Husky