Skip to Content

Narcotic analgesics

A drug may be classified by the chemical type of the active ingredient or by the way it is used to treat a particular condition. Each drug can be classified into one or more drug classes.

Narcotic analgesics are drugs that relieve pain, can cause numbness and induce a state of unconsciousness.

They work by binding to opioid receptors, which are present in the central and peripheral nervous system. There are three types of opioid receptors, which are all G-protein linked and either facilitate opening of potassium channels (causing hyperpolarization) or inhibit calcium channel opening (so inhibits release of excitatory neurotransmitters such as substance P). Overall, narcotic analgesics reduce neuronal excitability in the pain carrying pathway.

Morphine and its analogues, and some synthetic derivatives are classed as narcotics analgesics. Narcotic analgesics are used to relieve acute and chronic, severe pain. Some narcotics are more potent than others. They also have the tendency to cause tolerance and dependence.

Filter by:
Drug Name DownUp( View by: Brand | Generic ) Reviews Ratings DownUp
levorphanol systemic (Pro, More...)
7 reviews
   
9.5
meperidine systemic (Pro, More...)
62 reviews
   
9.0
butorphanol systemic (Pro, More...)
31 reviews
   
8.8
methadone systemic (Pro, More...)
336 reviews
   
8.8
hydromorphone systemic (Pro, More...)
283 reviews
   
8.7
oxycodone systemic (Pro, More...)
515 reviews
   
8.7
buprenorphine systemic (Pro, More...)
195 reviews
   
8.6
fentanyl systemic (Pro, More...)
262 reviews
   
8.5
opium systemic (Pro, More...)
10 reviews
   
8.5
oxymorphone systemic (Pro, More...)
163 reviews
   
8.3
codeine systemic (Pro, More...)
25 reviews
   
8.2
morphine systemic (Pro, More...)
221 reviews
   
8.1
hydrocodone systemic (Pro, More...)
32 reviews
   
7.9
nalbuphine systemic (Pro, More...)
20 reviews
   
7.8
propoxyphene systemic (Pro, More...)
20 reviews
   
7.1
tapentadol systemic (Pro, More...)
207 reviews
   
7.1
tramadol systemic (Pro, More...)
800 reviews
   
7.1
pentazocine systemic (Pro, More...)
8 reviews
   
6.4
alfentanil systemic (More...)
0 reviews
   
5.5
levomethadyl acetate systemic (More...)
0 reviews
   
0.0
remifentanil systemic (Pro, More...)
0 reviews
   
0.0
sufentanil systemic (Pro, More...)
0 reviews
   
0.0
Hide