Cocaine is the third most common addictive drug, next to alcohol and marijuana.
All of these methods may cause serious effects to the persons body, but smoking the freebase cocaine is the most serious. This is the fastest route to the brain and zooms past the lungs and heart faster to get there. This is usually from the heart muscle having to beat so fast that it can't keep up and forms a balloon, called an aneurysm, which eventually pops and the blood can't circulate around the body. But this is followed by withdrawal which may be feeling depressed or anxious then wanting to do more. So, school suffers, work suffers, family life suffers and physical health suffers.