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
   
9.1
meperidine systemic (Pro, More...)
62 reviews
   
9.0
methadone systemic (Pro, More...)
395 reviews
   
8.7
opium systemic (Pro, More...)
13 reviews
   
8.7
oxycodone systemic (Pro, More...)
559 reviews
   
8.7
hydromorphone systemic (Pro, More...)
306 reviews
   
8.6
butorphanol systemic (Pro, More...)
37 reviews
   
8.5
fentanyl systemic (Pro, More...)
282 reviews
   
8.4
buprenorphine systemic (Pro, More...)
245 reviews
   
8.2
codeine systemic (Pro, More...)
35 reviews
   
8.2
oxymorphone systemic (Pro, More...)
177 reviews
   
8.2
nalbuphine systemic (Pro, More...)
22 reviews
   
8.0
morphine systemic (Pro, More...)
250 reviews
   
7.9
propoxyphene systemic (Pro, More...)
20 reviews
   
7.1
tramadol systemic (Pro, More...)
921 reviews
   
7.1
hydrocodone systemic (Pro, More...)
61 reviews
   
6.9
tapentadol systemic (Pro, More...)
234 reviews
   
6.9
pentazocine systemic (Pro, More...)
8 reviews
   
6.4
alfentanil systemic (More...)
0 reviews
   
5.5
levomethadyl acetate systemic (More...)
0 reviews
   
0.0
morphine liposomal systemic (More...)
0 reviews
   
0.0
remifentanil systemic (Pro, More...)
0 reviews
   
0.0
sufentanil systemic (Pro, More...)
0 reviews
   
0.0
Hide