Anvisa Drug Registration Validator

Understanding the ANVISA medicine registration number

Every medicine sold in Brazil carries a registration number issued by ANVISA (Agência Nacional de Vigilância Sanitária), the national health-surveillance agency. It is printed on the packaging and the leaflet (bula) as the "Registro M.S.", for example M.S. 1.XXXX.XXXX.XXX-X. This page validates the format and the mask of that number.

The full number has 13 digits. The packaging is legally required to show at least the shortened 9-digit form 1.XXXX.XXXX, which is enough to identify the product in ANVISA's public databases.

How the number is structured

• The first digit indicates the product category — 1 = medicamento (medicine).
• The following blocks encode the company/process and the specific product and presentation.
• The number ends in a verifying digit. The official check-digit algorithm is not publicly published, so this tool checks the format and mask, not the mathematical validity of the final digit.

Validity and exemptions

A medicine registration is generally granted for 5 years and is renewable. Some low-risk products are "isento de registro" (exempt) and are instead notified or dispensed, so they may not carry a standard registration number.

Anyone can look up a registration on ANVISA's "Consultas" portal and check the official leaflet in the Bulário Eletrônico.

Common pitfalls

• Confusing the shortened 9-digit form with the full 13-digit number — both are valid representations of the same product.
• Assuming a valid format means the product is currently registered — only the official portal confirms the status and expiry.
• Expecting a check digit on an exempt product (isento de registro), which may not follow the standard mask.

FAQ

Does the first digit always have to be 1? For medicines, yes — 1 marks the medicamento category. Other leading digits are used for other regulated product areas.

Why does this tool only validate the format? ANVISA does not publish the check-digit algorithm for medicine registrations, so a structural/mask check is the honest, accurate validation we can offer.

Where do I confirm a medicine is registered? On ANVISA's "Consultas" portal and the Bulário Eletrônico, using the 9- or 13-digit number printed on the package.