Alpha-pyrrolidinovalerophenone, commonly known as α-PVP, Alpha-PVP (A-PVP), gravel, flakka, or niff, is a synthetic stimulant from the cathinone family.

Alpha-pyrrolidinovalerophenone, commonly known as α-PVP, Alpha-PVP (A-PVP), gravel, flakka, or niff, is a synthetic stimulant from the cathinone family.

Alpha-pyrrolidinovalerophenone, commonly known as α-PVP, Alpha-PVP (A-PVP), gravel, flakka, or niff, is a synthetic stimulant from the cathinone family.

Alpha-pyrrolidinovalerophenone, commonly known as α-PVP, Alpha-PVP (A-PVP), gravel, flakka, or niff, is a synthetic stimulant from the cathinone family.

Alpha-pyrrolidinovalerophenone, commonly known as α-PVP, Alpha-PVP (A-PVP), gravel, flakka, or niff, is a synthetic stimulant from the cathinone family.