How to Check a GLP-1 Pen Registration on Anvisa's Website, Step by Step

Thinking about buying a GLP-1 pen from a pharmacy you don't know well? An Anvisa registration check for your GLP-1 pen can help you confirm that the product in your hand matches a public record. Here's how to run it yourself, usually in a few minutes.

Why the registration check matters

Anvisa, the Agência Nacional de Vigilância Sanitária, is Brazil's federal health regulator. Among its many jobs, it decides whether a medicine can be sold in the country. That approval is called registration.

Each registered medicine has a registration number. You'll usually find it on the outer box and repeated in the package leaflet, the bula. So you can compare what you're holding with a public record instead of taking a store's word for it.

A registered product still might not suit every patient. Registration means the product met Anvisa's requirements for sale. It doesn't tell you whether a dose fits your health or your other medicines. Your prescription and your doctor or pharmacist still matter, and the check only covers one piece of the picture.

The check is quick, and you don't need an account or a login. If you want to keep up with GLP-1 news, start at the OzemNews homepage, then confirm the details on the official portal.

What to have in hand before you search

Grab the box and the pen before you open a browser. Take clear photos of the box, the label, and the leaflet. That gives you a fixed record to compare against, even if the box ends up in a drawer later.

Write down the details from your packaging. Layouts differ between brands and change over time, so read what your own box says instead of assuming a template. Focus on three groups:

• Brand name and active ingredient, such as Mounjaro with tirzepatide, or Ozempic with semaglutide
• Pharmaceutical form and concentration, exactly as the label prints them
• Manufacturer name, any importer or distributor listed, and the batch number (lote)

The expiry date (validade) is a separate field. The batch number identifies the production run, while the expiry date shows how long that batch is meant to be used. Keep them apart in your notes so you don't mix them up.

The leaflet usually repeats the registration number and names the registration holder. That gives you a second place to match the number, which helps if the outer box is damaged or missing.

Using the Anvisa consultation tool

Start on the official Anvisa site at www.gov.br/anvisa/pt-br, then find the medicine consultation tool, which is hosted at consultas.anvisa.gov.br. Menu names and page layouts change, so look for the current labels on the day you search instead of following an old screenshot or a guide from last year.

The search fields on screen typically let you look up a product by name, active ingredient, company, or registration number. Try more than one. A search for Ozempic alone may return several entries, so narrow the list using the concentration, pharmaceutical form, or holder name from your box. If a registration number returns nothing, try it with and without punctuation, since the field may handle the two differently. Curious about how a product's registration news developed? OzemNews is a place to find background before you run your own search.

Pay attention to how results are displayed. Some entries show more detail than others, so open the entry to see the full record. When you find the right one, save a screenshot and note the date and time of your search. That record helps if you need to show a pharmacist or doctor what you checked and when.

Reading the result card

The result card includes a status field for the registration. Read the exact wording on your screen, because the portal's terms matter more than anything you remember from a blog post. If the status doesn't clearly show an active registration, pause and ask your pharmacy before going further.

The registration holder is the company that holds the registration with Anvisa. The manufacturer makes the product. An importer or distributor may also appear on the box. Those can be three separate companies, so check each name against its own field.

Concentration and pharmaceutical form have to match the label. If the box says one thing and the entry says another, stop and ask for help. Don't write the difference off as a typo until someone has checked it.

A pen is only one kind of presentation. Vials, multi-pack boxes, and pens may appear as separate entries. Confirm that the entry describes a pen, not a different form of the same active ingredient.

Matching the pen in your hand to the database entry

Compare the registration number digit by digit against the box, the label, and the leaflet. Read it in groups, out loud if that helps. A quick glance can miss a single wrong digit.

Next, compare the brand name, active ingredient, and concentration. Check that the dose unit printed on the pen matches the registered entry. If the pen shows a unit the database doesn't list for that product, flag it.

Then check that the manufacturer name and address on the box match the holder in the database. Addresses can be formatted differently, so look for the same company at the same location, not identical wording.

Any mismatch in these fields means you stop and ask a professional. Bring your photos to the pharmacy or your prescribing doctor and go through the details together. You don't have to sort it out alone.

What to do when something does not match or is not listed

Don't inject the pen until you've sorted out the discrepancy with the pharmacy that dispensed it or with your prescribing doctor. A delay is annoying. An unverified pen is worse.

Keep the packaging, the receipt, and any photos. If the store won't help, those records give a regulator or another professional something concrete to follow up on.

If you suspect a real problem, look for Anvisa's channels for reporting medicine complaints and adverse events. The site should show how to send a report, though the menu path may have changed since this article was written.

Anvisa also publishes alerts about irregular and falsified medicines. When a product looks unfamiliar, check those alerts before you use it. See whether the alert section lets you search by product name, since that feature may vary.

Common mistakes and how to avoid them

Searching only the brand name is the most common slip. You can land on a presentation that doesn't match your box, so always narrow by concentration and pharmaceutical form.

Similar names cause trouble too. Ozempic and Wegovy both contain semaglutide, yet they're separate products, so the brand on your box still matters. Compare the brand name, not just the active ingredient.

A registered product doesn't prove that every pen on a shelf came through the regulated chain. Storage, transport, and handling all matter, and a registration search can't see them. Ask the pharmacy how it sources its stock if you have doubts.

Screenshots shared in chat groups are risky. They can be old, edited, or show a different product. Check the live portal yourself. Before you trust a viral claim about a product or its registration, look it up in our OzemNews coverage too, since a second source helps.

FAQ

Does a registered pen mean it's safe for me?

Registration means Anvisa approved the product for sale in Brazil. It doesn't mean the product suits you or is safe in every situation. Your doctor can help you decide what fits your health.

Do I need an account to use the Anvisa portal?

No. You can run the consultation without creating an account or logging in. Open the official portal and search.

What if my pen isn't listed in the portal?

Don't inject it. Keep the packaging and receipt, then contact the pharmacy and your prescribing doctor. You can also report the concern to Anvisa through its official channels.

Can I rely on a screenshot someone sent me?

It's better to check the live portal yourself. Screenshots can be outdated or show a different presentation than the one in your hand.

Sources

• Agência Nacional de Vigilância Sanitária (Anvisa)
• Anvisa - Consulta de medicamentos