Creativity suppression can be described as a suppression of both one's motivation and capabilities in regards to performing tasks which either produce creative output or involve complex problem solving. This component is particularly difficult to deal with for artists of any sort as it can effectively induce creative block.
This is mainly an effect of antipsychotics and certain depressants such as quetiapine and alcohol. Creativity suppression is often amplified and maintained by accompanying effects such as thought deceleration and emotion suppression.
Compounds within our psychoactive substance index which may cause this effect include: