ATC/DDD code J01E for SULFONAMIDES AND TRIMETHOPRIM
This group comprises systemic sulfonamide and trimethoprim preparations. Combinations of sulfonamide and trimethoprim are classified in J01EE. Preparations containing two or more sulfonamides are classified within the different 4th levels, using the 5th level code 20.
In such combinations, the half-life of the most long-acting sulfonamide determines the classification. Sulfonamides in combinations with other antibacterials (excl. trimethoprim) are classified in J01R. Dapsone is classified in J04 - Antimycobacterials. See also A07A - Intestinal antiinfectives.
Preparations, which in addition contain a urine acidifier, such as vitamin C, calcium- or ammonium chloride, are classified at the plain 5th levels.
The DDDs for the sulfonamides are related to the duration of effect, i.e. usually the long-acting sulfonamides will have lower
