Spinal Stimulants and Motor-Excitants - stimulate cells of spinal cord; act on motor nerves; increase reflex excitability.
Spinal and Motor Depressants, - lower the activity of spinal cord and motor apparatus.
Cerebral Stimulants, - increase the activity of the brain, most of them producing delirium if taken in large doses. Some (as alcohol) are narcotics at last.
Cerebral Depressants, - lower or suspend the activity of the brain.
(1) Hypnotics or Soporifics, - produce sleep.
Hydrated Chloral. Bromides. Opium.
(2) Narcotics, - intensified hypnotic power. Cannabis Indica. Bromal Hydrate. Chloretone.
Also opium and other drugs.
Anoesthetics, - produce insensibility to pain.
(1) General Anaesthetics.
Ether. Chloroform. Nitrous Oxide.
(2) Local Anoesthetics.
Cocaine. Ethyl Chloride. Eucaine B.
Also ethyl hydrate, orthoform, carbolic acid, cold, sterile water, holocaine, ether.
Anodynes or Analgesics, - terms applied to drugs that relieve mild pain.
(1) General Anodynes.
Acetanilide. Opium. Bromides.
(2) Local Anodynes.
Also belladonna, stramonium, carbolic acid, cocaine, chloroform and other liniments, chloral, camphor, and opium. 3
Antispasmodics, - prevent or relieve spasm of muscle by action on nerve centres.
Amyl Nitrite. Ether. Bromides.