False, not all substances that cause altered states are prohibited by governments.
The reason why this is false is that although some of these substances are abused, they are still useful in a country because they serve other purposes.
These are those substances that have the power to affect the central nervous system when they are taken.
Substances that cause altered states may be harmful to the people that indulge in them. They are also harmful to other innocent people who may come in contact with those in this state.
Some of these substances includes:
Read more on substance abuse here:
https://brainly.com/question/8332991