Histamine
Hallucinogens are naturally-occurring or synthetically-produced drugs that can cause hallucinations
Is lithium a controlled substance?
Antidote
A variety of psychoactive drugs have notable effects on awareness. These range from a simple dulling of awareness produced by sedatives, to increases in the intensity of sensory qualities produced by stimulants:caffeine, cannabis, or most notably by the class of drugs known as psychedelics. These can produce major distortions of perception, including hallucinations. There is substantial evidence that alterations in the brain system that uses the chemical neurotransmitter serotonin play an essential role.
No, it is a noun. It refers to the essential nature or the composition of something. It can also refer to whether something has specifics and practicality (His argument has no substance, so it's hard to take him seriously); and it is sometimes a synonym for drugs, as in "substance abuse" (where it is used as a noun adjunct). The adjective forms are "substantial" and substantive.
Drugs are produced by a pharmaceutical company which uses laboratories to develop the medication.
Hallucinogens are naturally-occurring or synthetically-produced drugs that can cause hallucinations
The addictive substance
Drugs
If you wanted to learn how to make drugs, you would study pharmacology.
A substance not containing an illegal drug or controlled substance.
Alcohol is a substance as with any other drugs legal or illegal.
drugs
Is lithium a controlled substance?
Replacement drugs are usually generic alternatives to proprietary medicines. The are the same substance.
LSD
Antidote