if you could post all the ingredients of Deiselbolan V2.0 i may can help you.
I found out you were talking about DIESelbolan so the ingredients are Dymethazine and M-LMG.
I think it is mentioned to consult your physician if you use any medication , because the symptoms (anxiety,depression etc) could get worse. I dont think it is mentioned because of negative interaction effects between Dieselbolan and other medications.
Your daily medication should keep working but it is always possible to get your symptoms worse if you use OR stop some kind of prohormones/steroids.
Some people react with high anxiety to some anabolics. What should be kept in mind is that after using steroids your system is out of balance which also can effect your pain experience.
I dont think that your meds do not work anymore if using Dieselbolan, but it could be possible that while using Dieselbolan or stopping use, your pain could get worse for a while. This should not be due to less effectivity of your meds but due to possible higher pain experience (though system is out of balance -> effects your thoughts -> effects pain etc).
Another fact is, that some medications or OTC products slow done the working of some enzyms. It is important to know the pharmacogenetics of Dymethazine, M-LMG, Cymbalta, Lyrica and Xanax. If you use some PCT product, you should know their pharmacogenetics as well.
One example: If you use Sertraline (SSRI; antidepressant), which is breaked down by P450-enzymes, you should not use piperine, naringin etc, as these compounds will slow down p450-enzymes. The problem is that Sertraline cant get breaked down as usual so the plasma level in your body is "much" higher as it would be without piperine etc. You could get intoxicated.
So if you do know what the pharmacogenetics of all those substances are, you can figure out yourself what could happen in the worst case. If you do not have this knowledge i would really ask your physican .