Buy 1P-LSD Blotters 250mcg online. 1P-LSD also known as 1-propionyl-LSD and 1-propionyl-lysergic acid diethylamide, is the 1-propionyl analog of LSD. It is a hallucinogenic, psychedelic drug that belongs to the family of lysergamide. For any quantity above 100 Blotters, please contact us to negotiate the price.