Why do not all psychotropic drugs work on us and often only the second, third or fourth drugs will only work?

Difficulties in choosing effective treatment result from a wide spectrum of symptoms experienced by the patient - often these are symptoms from the borderline of many different diseases, which makes it difficult to choose the right treatment. In addition, psychotropic drugs often have many so-called grip points - this means that they interact with various structures in the nervous system and thus can cause side effects that the patient does not always tolerate. The complicated mechanism of action of drugs means that it is often difficult to predict how the patient will react to a given drug in terms of effectiveness and safety, which is why the selection of therapy can be long-lasting. Some patients also require the implementation of psychotherapy as a support for pharmacological treatment — I encourage you to watch a video related to this topic: