J05AB Nucleosides and nucleotides excluding reverse transcriptase inhibitors Nucleósidos y nucleótidos excluyendo 核苷类和核苷酸类药，逆转录酶抑制药除外 核苷類和核苷酸類藥，逆轉錄酶抑制藥除外 L4
Source: Wikipedia · CC BY-SA 4.0 Fuente: Wikipedia · CC BY-SA 4.0 来源：维基百科 · CC BY-SA 4.0 來源：維基百科（中文轉繁體） · CC BY-SA 4.0 (derived zh-Hant)
ATC level L4 · Search this class · Consumer categories
Active ingredients in this class
13 active ingredients 13 principios activos 13 个活性成分 13 個有效成分
The market codes after a status are the markets where that status is recorded (same codes as the product tables). An ingredient can be on sale in one market and withdrawn in another; that is a record fact, not a safety judgement.
A missing name is marked in its row only when it is the exception; when most names lack it, the list stays unmarked.
- Ganciclovir
J05AB06activeUS GB CA AU SG CN ES TWdiscontinuedCA ES MXwithdrawnEUunknownAU MX HK - Valganciclovir
J05AB14Salt form: Valganciclovir HydrochlorideactiveUS GB CA AU SG CN ES MX TWdiscontinuedCA ES MXwithdrawnESunknownAU MX HK - Famciclovir
J05AB09activeUS GB CA AU CN ES TWdiscontinuedCA MXwithdrawnESunknownAU HK - Remdesivir
J05AB16activeUS GB CA SG ES TW EUdiscontinuedCAwithdrawnESunknownAU HK - Cidofovir
J05AB12activeUS GB CA ESwithdrawnEUunknownAU HK - Acyclovir
J05AB01activeUS CA SG CN ES TWdiscontinuedCA ESwithdrawnES - Valaciclovir
J05AB11Salt form: Valaciclovir Hydrochloride · Valaciclovir Hydrochloride HydrateactiveGB AU SG TWdiscontinuedMXwithdrawnMXunknownAU MX HK - Valacyclovir
J05AB11activeUS CA CN ES TWdiscontinuedCA ESwithdrawnES - Molnupiravir
J05AB18activeGB AU CNunknownAU EU - Brincidofovir
J05AB17activeUS CA - Brivudine
J05AB15activeGB ESdiscontinuedES - Vidarabine
J05ABactiveCN - 溴夫定
J05ABactiveCN
By dosage form, across markets
An ATC class only groups medicines by similar pharmacology/chemistry — it does not mean they are interchangeable. A different ingredient, dosage form, release mechanism or strength is not interchangeable.
Only ingredients with a recorded ATC class are listed (6,009 of 12,637).
Class names are editorial translations or come from Wikipedia (CC BY-SA 4.0) / Wikidata (CC0); each ATC page lists the exact source, licence and link for every language. Only the ATC code and the WHO hierarchy are authoritative.
Notes & licences
Status badges summarise the product records held for each ingredient (active / discontinued / withdrawn / unknown), and the market codes after each badge show where that status is recorded. Only some registers publish a status column: CA, ES and MX do; AU and HK have no status column and are recorded as unknown; CN, US, GB, TW and SG records are on the register and marked active.
Class and category names are editorial or AI-assisted translations; only the ATC code and the WHO hierarchy are authoritative.
ATC codes and hierarchy reference the WHO Collaborating Centre for Drug Statistics Methodology ATC/DDD Index (copyright WHOCC; the index itself is not reproduced). Ingredient/strength facts come from the regulator records listed on About.