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J ANTIINFECTIVES FOR SYSTEMIC USE

Antiinfectives are also classified in the following groups:
A01AB Antiinfectives and antiseptics for local oral treatment
A02BD Combinations for eradication of Helicobacter pylori
A07A Intestinal antiinfectives
D01 Antifungals for dermatological use
D06 Antibiotics and chemotherapeutics for dermatological use
D07C Corticosteroids, combinations with antibiotics
D09AA Ointment dressings with antiinfectives
D10AF Antiinfectives for treatment of acne
G01 Gynecological antiinfectives and antiseptics
P Antiparasitic products, insecticides and repellents
R02AB Antibiotics
S01/
S02/
S03 Eye and ear preparations with antiinfectives
Even systemically administered antibacterials and antimycotics may be classified in other groups if their target is exclusively local, e.g. the skin - D01 - Antifungals for dermatological use.
Inhaled antiinfectives are classified in J.

The DDDs for the antiinfectives are as a main rule based on the use in infections of moderate severity. However, some antiinfectives are only used in severe infections and their DDDs are assigned accordingly. The DDDs assigned are based on daily treatment. The duration of the treatment periods is not taken into consideration. For antiinfectives given in a high initially starting dose followed by a lower daily "maintenance" dose, the DDDs are based on the "maintenance" dose if the total duration of the treat-ment course is more than one week. If, however, the treatment course is 7 days or less, the DDDs are assigned according to the average daily dose i.e. the total course dose divided by the number of treatment days (e.g azithromycin).


J01 ANTIBACTERIALS FOR SYSTEMIC USE

This group comprises antibacterials for systemic use, except antimycobacterials, which are classified in J04. The antibacterials are classified according to their mode of action and chemistry.
Combinations of two or more systemic antibacterials from different third levels are classified in J01R, except combinations of sulfonamides and trimethoprim, which are classified at a separate 4th level, J01EE.
Combinations of antibacterials and tuberculostatics are classified in J04AM.
Combinations of antibacterials with other drugs, including local anesthetics or vitamins, are classified at separate 5th levels in the respective antibacterial group by using the 50-series.
Inhaled antiinfectives are classified here based on the fact that preparations for inhalation can not be separated from preparations for injection.


J01C BETA-LACTAM ANTIBACTERIALS, PENICILLINS

This group comprises penicillin beta-lactam antibacterials, inhibiting the bacterial cell wall synthesis. Combinations of penicillins from different 4th levels, including beta-lactamase inhibitors, are classified in J01CR.


J01CA Penicillins with extended spectrum

This group comprises penicillins with enhanced activity against gram negative rods, e.g. ampicillin and similar antibiotics.

The esters, for instance pivampicillin and pivmecillinam, have a higher bioavailability and thus a lower DDD than the corresponding non-ester compounds.
The DDDs for some of the compounds, for instance carbenicillin, piperacillin, ticarcillin and sulbenicillin, are based on the dosages used for narrow indications, i.e. life threatening infections.

J01CE Beta-lactamase sensitive penicillins

Benzylpenicillin and phenoxymethylpenicillin have different DDDs due to differences in indications, route of administration and bioavailability. The DDDs for the combination of benzylpenicillin and procaine penicillin is based on the treatment of syphilis, see list of DDDs for combination products, www.whocc.no.

J01CF Beta-lactamase resistant penicillins
J01CG Beta-lactamase inhibitors

The DDD for sulbactam is based on its use together with ampicillin, usually in a dose ratio of 1:2 respectively.

J01CR Combinations of penicillins, incl. beta-lactamase inhibitors

This group comprises combinations of penicillins and/or beta-lactamase inhibitors. Combinations containing one penicillin and enzyme inhibitor are classified at different 5th levels according to the penicillin.
Combinations of two or more penicillins with or without enzyme inhibitor are classified at a separate 5th level, J01CR50. Sultamicillin, a prodrug for sulbactam and ampicillin, is given a separate 5th level code: J01CR04.

The DDD for sultamicillin, a prodrug for sulbactam and ampicillin, is lower than the corresponding DDD for the ordinary combination due to higher bioavailability.

Last updated: 2024-01-26