So it seems you advised people to take all four at the same time, with no information about potential drug interactions then.
If you really think you are on to something with DPDR, and I hope you are right, then maybe you are the first person to find a treatment that is so efficient, perhaps more efficient than lamotrigine + SSRIs which is the best we have so far. Then wouldn't it be worth it spending just a little more time to explain what your experience actually is with these different people, instead of just giving your conclusions and instructions, especially in a way that might harm people, and also without giving your credentials?
Like who were these people, how long they had DPDR for (because spontaneous remission is frequent after a few months according to the forum), how many people did you advise to take this treatment, for those who recovered how much did their symptoms improve, and how many others did not have any positive effect? I mean, this kind of information is super important to draw a conclusion, and you expect us to trust you blindly like a doctor, this is really baffling to me.
You say "take lithium and biperiden for two weeks" and you don't even say if this is the time it took for these people to see an improvement or for how many of them, or if this is just your random intuition. Like you are so 100% sure you have the truth it's not even worth mentioning your reasoning to people, because doubt is useless when you are right, right?