Research on psilocybin has been quite a challenge because of drug laws that regulate it harshly. For that reason, there hasn’t been conducted a lot of research and studies that do exist are often small in size. Furthermore, typical psilocybin clinical trials are designed such that a therapist should be present throughout the experience followed by therapy sessions as well, making it very resource dependent. Still, these limits have changed recently, within the last decade or decade and a half which has encouraged researchers to start looking for the basic effects and the therapeutic potentials of psilocybin.