Do you mean psychologically or PHYSICALLY addictive
Tranquilizers are addictive both psychologically and physically. Some -- such as Valium -- even have potentially fatal withdrawal symptoms.
Most hallucinogens are not addictive physically, and are not very psychologically addictive. However, one of the more addictive hallucinogens is the dissociative ketamine.
Both alcohol and opiates (opium, heroin, morphine, oxycodone, hydrocodone, hydromorphone, fentanyl, Suboxone, etc.) are physically addictive. As far as I know, they are the only drugs that are physically addictive. Amphetamines, methamphetamines and cocaine are extremely psychologically addictive, as well as chemically addictive, but not physically addictive. Ecstasy also has a fairly high potential for psychological and chemical addiction, but it is not as addictive as speed, meth, or coke. Hallucinogens (LSD, marijuana, salvia, peyote, mescaline) are neither chemically addictive nor physically addictive. They can be psychologically addictive, though.
Mushrooms are no more additive than any other foods.The hallucinogens found in some mushrooms may become psychologically additive to those will little or no will power or self discipline.
Anything can become psychologically addictive.
It is extremely psychologically addictive, as well as chemically addictive. But it is NOT physically addictive. Also your teeth will be much worse for the wear.
Although cocaine is extremely psychologically addictive, as well as chemically addictive, it is not physically addictive. There are no physical withdrawal symptoms, like there are with alcohol or opiates.
Most CNS depressants have the potential to be physically and psychologically addictive.
They are considered to be physically addictive (as opposed to chemically addictive or psychologically addictive).Note that drugs that are physically addictive (alcohol and opiates) are also extremely chemically and psychologically addictive as well. But physical addiction trumps those two. Physical addiction means you get violently ill, and can even die, if you suddenly stop taking the drug. That is not true of chemical and psychological addiction.
Marijuana is not addictive in the way that other drugs are. Instead it is psychologically addicting. Which means that your brain thinks you need it when you don't. The only time it is physically addictive is when it is laced with other drugs
Apex :) Nicotine is the addictive substance that is found on tobacco.