This section unites drugs of inhibitory and stimulating type.
Inhibitory drugs can affect the nervous system in the following ways: a) they can decrease sensitivity of afferent nerve endings; b) they can protect sensory nerve endings from the action of irritant agents; c) they can inhibit excitatory transmission through afferent fibers.
Stimulant drugs selectively excite sensory nerve endings.
In this Section:
1. Drugs decreasing sensitivity of afferent nerve ending or preventing their excitation
2. Drugs stimulating sensory nerve endings