Hello -
While we are talking third-hand about a patient with a medical record that isn't present here (except for the list of psych meds and the doctor's rationale for prescribing them), which makes this a little bit less than a definitive discussion, you certainly have a very reasonable concern about your friend, as well as good reason to believe you may be correct about the inappropriateness of the combination of drugs, as well as the potential for a medication "spiral."
Prescribing Seroquel (alone) for a single episode of racing thoughts and agitation seems rather precipitous. To add to it an
antidepressant (Celexa), an anxiolytic/
anti-
seizure med such as Klonopin (excellent for
panic disorder or chronic
anxiety)
plus an
anxiety/panic "rescue" drug (Xanax), all combined with "Lactical" (with which I am unfamiliar, but know there is a calibration chemical used by the milk industry, mainly for goats -- could you have meant Lamictal, an anti-
seizure medication, instead?) seems extreme, at least.
First, yes, the drug "cocktai" your friend is taking could certainly cause the altered level of conciousness and mentation you've observed in the patient. Any one of them could. potentially, do this. All collectively would almost be certain to cause this. Unfortunately this happens all too frequently due to what I like to call the "Rube Goldberg" or "shotgun" approach", where medications are added to treat symptoms, often caused by medications already being taken, without removing anything from the mix. Often it happens because there is no single "quarterback" doctor keeping track of all the medications being prescribed by different specialists. In your friend's case
Some third party needs to evaluate the medications and the rationale for each, then find the most workable (optimal) combination that would manage his problems without putting him in a state where he cannot hope to think clearly nor function.
Just based on the little history provided in your post, I would think Seroquel and Lamictal (I'm going to assume that's what it actually is) would not only be the main offenders, but also seem like the least necessary.
I hope your friend will have a solid advocate who can perhaps help him find a "quarterback" or, at the very least, a second opinion/consult with a neurologist or psychopharmacologist who can clear this up.
Best of luck to you and to your friend. Based on what you've provided here, it would seem very likely he is overmedicated and would probably improve greatly with proper management of the medications. Please let us know how things go.