It depends what's in it.
If it's tobacco, no, generally it's not a prohibited drug. However it is illegal for children to have them and take them.
Drug tests do not check for cigarette use.
NO
Heroin
A drug which is illegal. Examples would include cannabis, cocaine and heroin.
soma muscle relaxer
If you mean drug - it's a nicotine.
A cigarette paper filled with a mixture of tobacco and the drug of choice, which is rolled up and smoked
yes
Nicotine
what is safe to use?
Schedule IV
Prohibits the refilling of Schedule II controlled substances.