LSZ

Lysergic acid 2,4-dimethylazetidide (also known as λ, Lambda, and LSZ) is a synthetic psychedelic of the lysergamide chemical class. It produces LSD-like psychedelic effects when administered.

In the 2000s, David E. Nichols with his team at Purdue University discovered this rigid analog of LSD.

LSZ has little to no history of human usage prior to 2012 when it appeared on some research chemical markets in the UK. Later, it gained international popularity through a small cluster of mail-order novel psychedelic shops that appeared in 2012. Also, it is synthesized in laboratories and distributed on blotter paper or in liquid solution. Diazedine and Lambda are other commercial names of this product.

LSZ does not meet the criteria for an addictive substance by the scientific community like other psychedelics.

Nevertheless, unpredictable adverse reactions such as uncontrollable anxiety, paranoia, delusions and psychotic breaks can always still occur.