LowT isn't going to say much since he's zucc'd but I listened to the couple of minutes where he bitches about SA on the most recent Dick Show and he keeps bringing up mixing alcohol and antipsychotics. So, I looked up the interactions between Latuda and alcohol.
These are all just normal side effects of drinking too much. Is it recommended? No, of course not. But there are no significant interactions that would cause psychological impairment beyond what drinking alone would do. The biggest risk at a quick search is combined effects on blood pressure causing a dip that could cause you to pass out, which is also a side effect of alcohol. You would feel greater effects from drinking less than you normally do, such as 1 beer having the effect of 2 beers. Then consider that he's doing the exact same shit and is definitely lying about easily disprovable things, he doesn't really have the right to judge his partner on getting blackout drunk on pills. Latuda, like most psych drugs that non-pill-seekers take, isn't the kind that gets you high either like his tackle box full of fun, some of which can be fatal when mixed with alcohol.
I don't really see how drinking and being retarded makes you a liar anyway, but narcissists (Rich) are characterized by it.