Muscle spasms can be described as an experience where one undergoes a sudden involuntary contraction of a muscle or a group of muscles.
The term most commonly refers to a muscle cramp which may be accompanied by a sudden burst of pain, but is usually harmless and ceases after a few minutes. There are a variety of other causes of involuntary muscle contractions which may be more serious, depending on the cause.
Compounds within our psychoactive substance index which may cause this effect include:
- Responsible use
- Subjective effects index
- Deliriants - Subjective effects
- Psychedelics - Subjective effects
- Dissociatives - Subjective effects