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Inhalable insulin was a total failure, even though it worked. I don't expect this to succeed where inhalable insulin failed.

Mannkind is still around, though not growing much. Why do you think it was a total failure?

Oh, really? I thought I read an article about how the product had been discontinued. I stand corrected.

First time I heard about inhalable insulin! Indeed it's unclear what the pills could offer over this.