As an illegal drug, cocaine can be used in its powder form, or it can be made into crack cocaine. Usually, crack is made by adding baking soda and water to cocaine and then heating the mixture. Crack is usually less expensive than the normal form of cocaine. Crack is usually smoked. It gives users a high that is very strong, but does not last as long as the high from regular cocaine. Both forms of cocaine are addictive, although crack cocaine is thought to be more addictive as it is usually smoked. 