alcohol and tobacco are considered drugs Cocaine Don't Smoke or do Drugs,

The intravenous form has sometimes been abused by people who feel it gives them a sensation of being high when given with pain medications

Taylor BA, Zaleski AL, Dornelas EA, Thompson PD

When nickel is inhaled or consumed, it attacks healthy tissue causing fibrosis, which can lead to chronic lung, cardiovascular and kidney diseases.[MM3] These are just a few examples of the many dangerous chemicals that makeup tobacco-free products

Cigarette smoking has been found to increase likelihood of cancer affecting all systems and organs in human body: Smoking tobacco causes cancer of: Nose Mouth Trachea Larynx Esophagus Throat Lungs Liver Stomach Kidneys Bladder Cervix Pancreas Colon Rectum Bone marrow Blood Nicotine is a dangerously addictive drug but when absorbed through a cigarette or any other smoking equivalent the effects can be devastating because its not the only substance that is absorbed