well your reply has certainly got my brain going. I googled MDPV and I realise I have seen and tried it before as "magic" and someone did warn me that some coke was being cut with magic... So I now suspect that my supply is being cut with mdpv, they list some side effects on wikipedia - breathing difficulties,i now have a bad chest/cough. Tinitus -which I had last month for a week and the comedown symptoms are exactly what my friend gets as he does more than I do. Do u know if mdpv tastes at all sweet and/or fizzy? is it generally more harsh than coke when snorted? much appreciated x