How to Know if a NAFDAC Number is Fake: 6 Ways to Tell

Before you can spot a fake, you need to know what a genuine NAFDAC registration number looks like. A valid number is made up of a short letter-and-number prefix, a hyphen, and a sequence of digits, for example 04-5808 or A4-100137. The prefix tells you the product category, and the digits are a unique registration number assigned by NAFDAC when the product is approved.

The most common prefixes for medicines are A4- for imported (foreign-manufactured) drugs and 04- for locally manufactured drugs. B4- is used for biologics and vaccines, and C4- is used for cosmetics and personal-care products. Older registrations often carry a four-digit number after the hyphen (such as 04-5808), while newer registrations use a longer six-digit format (such as A4-100137) because NAFDAC's numbering system has expanded over time.

A number that does not start with a recognised prefix, that is missing the hyphen, or that uses an obviously made-up prefix is immediately suspicious. Keep in mind, though, that a correct-looking format alone does not prove a number is genuine, because cloned numbers copy a real, correctly formatted number. Format is the first filter, not the final word, which is why the lookup in step 5 matters so much.

Start with the format, because it is the fastest check and you can do it before you ever go online. Look at the prefix in front of the hyphen. For a medicine, you should normally see A4- (imported) or 04- (locally made). If a drug carries a prefix that is not used for that category, or a prefix that does not exist in NAFDAC's system at all, treat the number as fake until proven otherwise.

Other format problems to watch for include a missing hyphen, letters where there should be digits, far too many or too few digits, or spacing and punctuation that look inconsistent with the rest of the printing. Counterfeiters often get these details wrong because they are copying the look of a real number without understanding the structure behind it.

A correctly formatted number does not clear the product on its own, but a badly formatted one is an instant warning. If the format is wrong, you can usually stop right there and avoid the product.

This is the single most important check for catching cloned numbers, and it is where most fakes are exposed. Every registration number in NAFDAC's records is tied to a specific product name, manufacturer, strength, and dosage form. When you look the number up, those details must match exactly what is printed on the pack in your hand.

If you search a number and it returns a different product, a different manufacturer, a different strength, or nothing at all, the number does not belong to that product. A criminal has taken a genuine number from one approved product and stamped it onto something else. The number reads as 'valid' in isolation, but it fails the moment you compare it against the official record, which is exactly why the comparison matters more than the number looking real.

Always cross-check at least the product name, the manufacturer, and the strength. A fake antimalarial, for example, might carry a real NAFDAC number that actually belongs to a brand of paracetamol. The number is genuine; the match is not.

Every pharmaceutical product legally sold in Nigeria must carry a NAFDAC registration number on its packaging. If a drug has no NAFDAC number printed anywhere on the carton, blister pack, or bottle label, it has not been through NAFDAC's approval process and is illegal to sell. This is not a grey area, and there is no legitimate reason for a regulated medicine to be missing its number.

Look carefully before concluding the number is missing, because it can be printed in small text near the manufacturing and expiry dates, on the side flap of the carton, or on the foil of a blister pack. Genuine numbers are usually preceded by 'NAFDAC Reg. No.' or the abbreviation 'NRN'. But if you have checked the carton, the inner packaging, and the leaflet and there is genuinely no number, do not buy or use the product.

For high-risk drug categories, especially antimalarials and some antibiotics, NAFDAC requires a Mobile Authentication Service (MAS) scratch panel on the packaging. This is a small silver panel you scratch to reveal a hidden PIN. You then send that PIN by SMS to the number printed on the pack, and you receive an instant reply confirming whether the product is genuine.

The MAS system is a powerful, free check because it works even against well-made clones: each genuine pack carries a unique one-time code. If a product that should carry a MAS panel has none, if the panel looks like it was already scratched before you bought it, or if the SMS reply says the code is invalid or has already been used, treat the product as fake and return it.

Not every drug category uses MAS, so a missing panel on, say, a simple painkiller is not automatically a problem. But for antimalarials in particular, the MAS check is one of the most reliable tools available to ordinary buyers.

A fake NAFDAC number is usually printed on fake packaging, and counterfeit packaging tends to give itself away. Look for blurry or smudged printing, spelling and grammar errors, misaligned text, colours that look slightly off compared with the genuine product, batch numbers that do not match between the carton and the blister pack, or expiry dates that are missing, smudged, or implausible.

Genuine manufacturers invest heavily in consistent, high-quality printing and tamper-evident packaging. When the packaging looks cheap, inconsistent, or hastily produced, the NAFDAC number printed on it is just as likely to be fake. Trust your instincts: if a familiar product suddenly looks different from the version you have bought before, compare it side by side or ask the pharmacist before using it.

Putting the signs together, here is the routine that catches the most fakes in the least time. Step one: read the number and check the format and prefix. If it does not look like a valid NAFDAC number, stop. Step two: look the number up, either with an online checker or directly in the official NAFDAC Greenbook, the public database of registered products at greenbook.nafdac.gov.ng.

Step three, the decisive one: compare the result against the pack. Confirm that the product name, the manufacturer, and the strength all match. A genuine, correctly matched record is the strongest sign the product is real. Step four: for antimalarials and other MAS-covered drugs, scratch the panel and send the PIN by SMS to confirm the pack is genuine. Step five: inspect the packaging quality and the expiry date, and only buy from a licensed pharmacy or a verified distributor.

You can run the lookup in step two and three quickly using the free NAFDAC checker on this site, which lets you search by registration number or brand name and shows you the matching product details to compare against the pack.

If you have good reason to believe a NAFDAC number or product is fake, do not use the product and do not return it to general circulation. Keep the packaging and any receipt, because they help investigators trace the source. Report the product to NAFDAC through the agency's official complaint channels, including its website and consumer-complaint contact lines, and tell the pharmacy or retailer where you bought it so they can pull the batch from their shelves.

Reporting matters beyond your own safety. Counterfeit and substandard drugs, particularly fake antimalarials and antibiotics, contribute to treatment failure, drug resistance, and preventable deaths. Each report helps NAFDAC identify and shut down the supply chains behind fake products, protecting other buyers who might not know how to spot the warning signs.