I read your previous post. In my opinion your Moggy's problems go beyond the problem of Wednesday morning, especially since you said he was anorexic for 8 days prior.
Since the Mirtazapine is not kicking in, I would be calling your vet first thing in the morning.
WhMy cat has been on Mirtazapine for over a year. The drug kicks in any where from 15-20 mins to an hour. Mine gets 1/3 every 2 days. Yes the drug will make them talk a lot more, seem restless and maybe even sleep more.
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