Oddly enough, I didn't find drugs addictive during my MidLife party crisis, and boy did I do plenty of them! I quit them all as soon as the crisis was over with no withdrawals, other than from the people I was hanging around with for that two year period.    I won't bother to list what all I did, but let me just say I drew the line at sticking needles in my arms.  Nobody should consider that a Party activity!