Question

Some intravenous abusers combine cocaine with heroin'a practice known as ___________________.

Answer 1

The practice where it describes the action above is speedballing. This is done in an intravenous way combined with the drugs named above. The reason why this is done by the abusers is because this gives a more faster effect compared to different methods. This is much faster and would likely give them the effect that they want which is much stronger compared to other methods.