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QN
NERVOUS SYSTEM
Preparations affecting the nervous system, both centrally and peripherally, are
classified in this group. Group headings are kept consistent with the ATC system.
Owing to interspecies differences between animals and humans, the grouping of
agents and the corresponding names of the groups may not always appear
appropriate. For example, agents in QN05A - Antipsychotics, may more commonly
be used as sedatives, tranquillizers or even antiemetics in veterinary medicine.
Nevertheless, to minimize confusion between ATC and ATCvet, the group
headings used in the ATC system will be preserved. Exceptions and further
information will be found under each subgroup heading.
QN01
QN01A
ANESTHETICS
ANESTHETICS, GENERAL
Agents which produce general anesthesia, surgical analgesia or neuroleptanalgesia
should be classified in this group. Benzodiazepine derivatives are classified in
QN05BA or QN05CD. See also QM03A - Muscle relaxants.
QN01AA
QN01AB
QN01AF
Ethers
Halogenated hydrocarbons
Barbiturates, plain
Barbiturates used as anesthetics should be classified in this group.
Barbiturates used as hypnotics/sedatives and as premedication, see
QN05CA - Barbiturates, plain. Phenobarbital is classified in
QN03AA - Barbiturates and derivatives.
QN01AG
Barbiturates in combination with other drugs
Only preparations used as anesthetics are classified in this group. See also
QN05CB - Barbiturates, combinations.
QN01AH
Opioid anesthetics
Opioid anesthetics in combination with other anesthetics are classified in this
group.
QN01AX
Other general anesthetics
Various plain and combined drugs used to produce anesthesia/analgesia, which
cannot be classified in the preceding groups are classified in this group.
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