cocaine CAN be harmful if used frequently and heavily causing heart problems, paranoia, anxiety, nasal ulcers, and other issues and if used days on end is not uncommon to cause a schizophrenic episode called "cocaine psychosis" which generaly wears off once the drug does. if not then chances are the person has an underlying mental issue. however it is possible for cocaine to be used responsibly and if used in small amounts and very infrequently it is generaly not harmful.
cocaine is usualy snorted or injected. in some cases people dab a little bit on the end of the penis thinking it will enhance sexual pleasure. this practice however is dangerous and can result in amputation of the penis.
cocaine is also cut with many other adulterants such as baking soda, starch, sugars, caffeine, and amphetamines. the cuts in cocaine often times is more damaging to nasal membranes than the actual cocaine.
2.) jim was educated about drugs and new when to set limits. he ate well, excersized, and occaionaly used cocaine in reasonable amounts and new when he had enough. he did this a couple times a year without problems until eventualy he grew up a little and decided his party days were a thing of the past and became successful in his career.
While powder cocaine can be smoked to some effect (despite common belief otherwise), it is a very inefficient method of ingestion. Because of the high temperatures present when smoking, powder cocaine tends to burn rather than vaporizing. For this reason, freebase cocaine, also known as crack, is created from powder cocaine for smoking. Freebase cocaine vaporizes at smoking temperatures providing more effect with less material, as well as faster onset and a more intense high than powder cocaine..
Effects--- Alot like speed, but "cleaner" and not as long-lasting. Basically it gives a person lots of energy, makes them more alert and more sharp mentally, gives people a "euphoria" thats difficult to explain--- it's sort of a feeling of invincibility with a simultaneous feeling that all is right in the world. Some people say that it's like ecstasy but you love yourself instead of others. Cocaine also has a pleasurable numbing effect (on gums, lips, etc).
Unfortunately, the drug only lasts ~40 min at the most and the crash is very, very bad, with intense cravings, depression, and paranoia. Addiction soon after experimental use is not uncommon.
Basically--- stay away from the devil's dandruff.