You're at the pharmacy, the clerk sets the medication on the counter, you pay, and you walk out. Nobody thinks twice about it. But what if that box is a fake? Anvisa (Brazil's government agency responsible for overseeing food and drug safety) recently issued an alert ordering the recall of batches of an antibiotic on suspicion of fraud. And this isn't an isolated incident — over the past few years, numerous products have been pulled from shelves due to counterfeiting, contamination, or regulatory violations.
The good news is you don't have to rely solely on the pharmacy's good faith. With your phone in hand, you can verify whether a medication is properly registered before swallowing the first capsule. And the process is simpler than you might think.
Why counterfeit medication is such a serious problem
A counterfeit drug may contain no active ingredient whatsoever — meaning it simply doesn't work. In the best-case scenario, you've just wasted your money. In the worst case, it could contain the wrong substances, trigger a severe allergic reaction, or mask an infection that needed real treatment.
In the case of the antibiotic Anvisa recently ordered recalled, the issue involved batches with suspicious registration numbers. That means the product may have made it to store shelves without going through the mandatory quality control checks. And don't assume it only happens at shady corner pharmacies — irregular products have been found at major pharmacy chains too.
Online purchases are an even bigger concern. E-commerce sites and social media are breeding grounds for medications of unknown origin. If the price looks too good to be true, trust your gut and walk away.
How to check a medication right now using your phone
Anvisa maintains a public lookup system called Product Search, available through their official website. Here's how it works:
- Open your phone's browser and go to
consultas.anvisa.gov.br. - Tap on Products, then Medications.
- Enter the name of the medication or the registration number printed on the packaging (usually a 13-digit code beginning with 1 or 3).
- Check whether the product shows up as valid and whether the manufacturer matches what's printed on the box.
If the registration doesn't appear, or shows up as canceled or expired, that's a red flag. In that case, don't use the product and file a report through Anvisa's website or by calling 0800 642 9782 (it's a free call).
Does the QR code on the packaging actually do anything?
Since 2020, Anvisa has required that medications include a technology called a Datamatrix code on their packaging — similar to a QR code, but smaller and more square-shaped. You'll usually find it on the side or bottom of the box.
This code contains a unique serial number tied to that specific product. The idea is to track each individual box from the factory all the way to you. You can scan it with any QR code reader app on your phone — the iPhone's built-in camera app reads it natively, and on Android, Google Lens does the job.
The code should redirect you to product information. If it doesn't redirect anywhere or throws an error, the packaging may be counterfeit, or the code may have been reused — which is also a violation.
Heads up: if the packaging doesn't have a Datamatrix code, the product may be from an older batch (produced before the requirement took effect) or it may be irregular. When in doubt, ask the pharmacist and request a receipt.
Where to buy medication more safely
Here are some practical tips that actually make a difference:
- Choose pharmacies with a licensed pharmacist on duty. It's required by law, but many locations ignore it. The pharmacist is legally responsible for what's sold there.
- Always ask for a receipt. It sounds basic, but a lot of people skip it. The receipt is your proof of where the product came from.
- Be suspicious of prices that are way below average. Antibiotics, insulin, blood pressure medications, and high-cost drugs are the most commonly counterfeited. If the price seems impossibly low, something is off.
- When shopping online, only buy from pharmacies authorized by Anvisa. You can check the list on
anvisa.gov.brunder the online pharmacies section. Any site without that authorization cannot legally sell medications in Brazil. - Avoid buying medication through WhatsApp, Instagram, or Shopee. No tracking, no guarantee, no accountability.
What if you've already taken a suspicious medication?
Take a breath. If you took something and you feel fine, there's likely no immediate danger. That said, it's worth taking a few steps.
First, hold onto the packaging — it's your evidence. Then visit Anvisa's website and check whether that specific batch appears on the recall list. You'll find it at anvisa.gov.br under the Alerts and News section. If your batch is listed, seek medical advice and file a report.
If you experienced any unusual symptoms — nausea, dizziness, or an allergic reaction — go to an urgent care center and bring the packaging with you. Let the doctor know you suspect the product may be irregular. They can log it in the public health surveillance system.
Can any pharmacy sell controlled substances?
No. Pharmacies need specific authorization from Anvisa and the state health agency to dispense controlled medications. You can verify any pharmacy's status through Anvisa's public lookup tool on their website.
I bought medication online and it looks different from what I normally get. What should I do?
Don't take it. Keep the packaging and your proof of purchase. Report it to your state's consumer protection agency (Procon) and to Anvisa. If the website has a CNPJ (business registration number), you can also file a complaint on Reclame Aqui. Document everything before throwing anything away.
Does Anvisa notify the public when it recalls a product?
Yes, but those alerts don't always reach you directly. That's why it's worth following Anvisa's official Instagram account (@anvisaoficial) and turning on notifications. They post recall alerts regularly.
What to do right now
You don't need to become a pharmacy expert. But it's worth building one simple habit: whenever you buy a new medication, or pull something out of the medicine cabinet that's been sitting there a while, take two minutes to check the registration on Anvisa's website. Scan the Datamatrix code on the box with your phone's camera. See whether the batch shows up in any recall alerts.
Counterfeit medication doesn't look counterfeit. The packaging can be identical to the real thing. The only way to protect yourself is to use the tools that already exist — and that are available for free, right on your phone.
