ATC Group: A16AA04 Mercaptamine

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of A16AA04 in the ATC hierarchy

Level Code Title
1 A Alimentary tract and metabolism
2 A16 Other alimentary tract and metabolism products
3 A16A Other alimentary tract and metabolism products
4 A16AA Amino acids and derivatives
5 A16AA04 Mercaptamine

Defined daily dose

The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. The DDD is a unit of measurement and does not necessarily reflect the recommended or Prescribed Daily Dose. Therapeutic doses for individual patients and patient groups will often differ from the DDD as they will be based on individual characteristics (such as age, weight, ethnic differences, type and severity of disease) and pharmacokinetic considerations.

Code Route Amount Notes
ORAL Oral 2 g

Active ingredients in A16AA04

Active Ingredient

Mercaptamine reduces corneal cystine crystal accumulation acting as a cystine-depleting agent by converting cystine to cysteine and cysteine-cysteamine mixed disulfides.

Related product monographs

Document Type Information Source  
 CYSTAGON Capsule MPI, US: SPL/Old FDA, National Drug Code (US)
 CYSTAGON Hard capsule MPI, EU: SmPC European Medicines Agency (EU)
 PROCYSBI Capsule / Granules MPI, US: SPL/PLR FDA, National Drug Code (US)

United States medicines

Medicines classified under this ATC code globally

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Italy (IT)

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Lithuania (LT)

Netherlands (NL)

Poland (PL)

Romania (RO)

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United Kingdom (UK)

Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide.