Causes
The use of cocaine with cigarettes can result in chain smoking. Many people chain smoke when drinking alcohol because alcohol potentiates nicotinic acetylcholine receptors, leading to re-sensitization and hence inducing a craving.
The extent to which chain smoking is driven by nicotine dependence has been studied. It does not seem that the amount of nicotine delivered is a significant factor as the puff volume correlates poorly with the frequency of cigarette consumption.
Read more about this topic: Chain Smoking