None of the above. There are numerous types of steroids but its sounds like your asking about anabolic steroids. Some steroids mimic hormones, others are used as medical drugs for treatments. Cholesterol is a steroid as well. They arnt street drugs or anything.
Stimulants
yes
Stimulants and depressants have opposite effects on the brain. Stimulants activate the central nervous system, while depressants (as their name implies) depress it.
Depressants, stimulants, and hallucinogens
Stimulants, depressants, narcotics, hallucinogens.
The harmful effects of stimulants, depressants, hallucinogens, anabolic steroids and inhalants on the body are different for each thing used. Stimulants can lead to the heart beating too fast while depressants could slow the heartbeat down too much.
Substances that are not stimulants include depressants (such as alcohol and benzodiazepines) and hallucinogens (such as LSD and psilocybin). These substances work on the central nervous system in different ways compared to stimulants.
I'v heard of four categories, if that's what you're after; Depressants, Stimulants, Hallucinogens, and I think the fourth was Painkillers?
Depending on the Dosage, Nicotine is can be either a Depressant and Stimulant. With a low dosage it is a stimulant, where as with higher dosages it becomes a depressant.
The forms of drugs include: stimulants depressants hallucinogens If you mean the ways drugs are administered, they include: Oral Subcutaneous Intravenous Intramuscular Dermal Spinal
stimulants increase activity and depressants decrease activity.
There are more than four classes of psychotropic medication: 1) Antidepressants (SSRIs, SNRIs, TCAs, MAOIs, and others) 2) Mood Stabilizers (Lithium, Anticonvulsant class mood stabilizers, SGAs) 3) Antipsychotics (Classical Antipsychotics, Atypical Antipsychotics) 4) Stimulants (Amphetamine products, Bupropion, Strattera and others) 5) Antianxiety medications (Benzodiazepiines, Buspar, Vistaril and others)