Spurious medicines rarely walk in through the front door of a pharmacy. They arrive through shortcuts: a purchase without a bill, an unfamiliar salesman with an unbeatable price, a carton nobody opened and checked. That is actually good news, because it means the defence is almost entirely in your hands. The law treats deliberately fake products as spurious, and genuine products that fail quality testing as not of standard quality; both can harm a patient, and both can put your licence at risk if you cannot show where the stock came from. This guide covers the habits that keep them out.
Buy only from licensed distributors: your single best protection
The most effective thing a pharmacy can do is also the simplest: buy every strip, bottle and vial from a wholesale distributor who holds proper drug licences (Form 20B and 21B in Tamil Nadu) and issues a full GST invoice for every supply. A licensed wholesaler buys from authorised company stockists or from manufacturers directly, so there is an unbroken legal chain from the factory to your shelf. Insist that every invoice shows the product name, quantity, batch number and expiry date. A supplier who cannot, or will not, give you that invoice is telling you something important about the stock.
That paper trail is also your legal protection. During an inspection, the Drugs Inspector can ask for the purchase record of any product in your shop. A proper invoice from a licensed distributor shows you bought in good faith through the legal chain, and responsibility for the product's genuineness traces upward to the seller and the manufacturer. In a recall, the batch numbers on your invoices let you find and set aside affected stock in minutes. Without that invoice, the questions stop with you, and there is nothing standing between your licence and the problem.
Warning signs when stock is offered cheap
Spurious and diverted stock almost always arrives with the same tell-tale pattern. No invoice, or only a rough estimate slip. Cash only, with no bank trail. A discount far deeper than the normal trade margin. A seller whose shop, licence or GST number you cannot verify. Stock offered from a vehicle or a bag rather than a proper godown. Pressure to decide on the spot. Any one of these alone might have an innocent explanation; two or three together are a pattern. When a price looks impossible, ask yourself who in the legal supply chain is supposedly taking that loss, and why. Usually nobody is; either the product is not what it claims to be, or it left the legal chain somewhere along the way.
Check packs on arrival, not when a customer complains
Make a habit of opening cartons the day stock arrives. Look at print quality first: blurry text, faded or slightly wrong colours, cheap foil and spelling mistakes on the pack or leaflet are classic signs of copying. Check seals next: broken shrink wrap, resealed flaps, glue marks or a fresh MRP sticker pasted over the printed MRP all deserve a second look. Then match the numbers: the batch number, manufacturing date and expiry on the strip should match the outer carton, and both should match your invoice. A mismatch between strip and carton is a strong sign of repacking. If you stock a product regularly, compare a new pack against one you know is genuine; your own familiarity with how a pack should look and feel is a better detector than any gadget.
Use the QR code on top-selling brands
Since August 2023, Indian drug rules require manufacturers of the country's 300 top-selling brand formulations, listed in Schedule H2 of the rules, to print a barcode or QR code on the pack. Scanning it should show the product's unique identification code, its generic and brand names, the manufacturer's name and address, the batch number, the manufacturing and expiry dates and the manufacturing licence number. Those details should match what is printed on the pack and what is on your invoice. A listed brand with no code (check the manufacturing date — packs made before August 2023 were not required to carry one), a code that will not scan, or scanned details that do not match the pack is stock to hold back and verify with your distributor before it goes on the shelf. Other products may carry codes voluntarily, and the net is widening: from July 2027 the rules extend the requirement to all vaccines, anticancer and narcotic or psychotropic drugs, and to all antimicrobials from July 2028, so treat the code as one more check rather than the only one.
Physician samples are never for sale
Packs overprinted with the words "Physician's Sample - Not to be sold" are meant for free distribution to doctors, and the drug rules expressly prohibit selling them. If someone offers you sample packs at a throwaway price, that stock has already left the legal chain, and no paperwork can make it right. Selling them invites action during an inspection, and even keeping them mixed with saleable stock creates avoidable doubt about your shop. Refuse them politely and keep them off your shelves altogether.
If you suspect a fake: isolate, document, inform
Stop selling the product the moment doubt arises. Move the entire quantity to a separate, clearly marked place away from your saleable shelves so nobody dispenses it out of habit. Keep the suspect packs, the purchase invoice and the supplier's details together; they are your evidence and your protection. Then inform your area Drugs Inspector or the Directorate of Drugs Control, Tamil Nadu (under the Food Safety and Drug Administration Department), and tell the distributor you bought the stock from. If a customer brought the problem to you, note the batch details of their pack as well. Do not quietly return the stock and forget it; a written record showing you acted promptly is exactly what protects your licence, and your report may save other shops in the district from the same consignment.
Quality has to survive the journey too
A perfectly genuine medicine can still reach the customer as a substandard one if it is stored or transported badly. Proper wholesale distributors keep stock in cool, dry godowns, off the floor and away from sunlight, rotate it so the earliest expiry moves out first, and handle cold-chain items such as vaccines and insulin in refrigerated storage with the shortest possible transit time. Informal channels do none of this. A strip that has spent weeks in a hot vehicle in Tamil Nadu weather can lose potency long before its printed expiry date. When you choose a distributor, ask how they store and deliver stock; that care is part of what you are paying for, and part of what your customers are trusting you for.
Quick checklist
- Buy only from distributors holding valid wholesale drug licences.
- Insist on a GST invoice with batch number and expiry for every purchase.
- Refuse cash-only deals and discounts that look too good to be true.
- Open and check cartons on arrival: printing, seals, batch numbers.
- Scan the QR code on top-selling brands and match it to the pack and invoice.
- Never buy or sell packs marked as physician samples.
- Isolate suspect stock, keep the invoice and inform your Drugs Inspector.
This guide is general information for pharmacy and medical shop owners, not legal or medical advice. Rules, schedules and reporting procedures change from time to time, so verify current requirements with the Directorate of Drugs Control, Tamil Nadu or your area Drugs Inspector.
Clean sourcing is a daily habit, and it is easier with a wholesaler who takes it as seriously as you do. Sri Krishnaveni Pharma Distributors supplies pharmacies, clinics and hospitals across Dindigul district with properly invoiced, properly stored stock, so that every pack on your shelf has a clear paper trail behind it.
Frequently asked questions
How can a pharmacy identify fake medicines?
Check print quality, spelling, seals and whether batch numbers match between the strip, the carton and the invoice, and scan the QR code on top-selling brands. The strongest protection, though, is buying only from licensed wholesale distributors who give proper GST invoices with batch and expiry details.
Is it legal to sell physician samples in a medical shop in India?
No. Packs marked "Physician's Sample - Not to be sold" are meant for free distribution to doctors, and Indian drug rules expressly prohibit their sale, so a pharmacy should never buy or stock them.
What is the QR code on medicine packs in India for?
Since August 2023, manufacturers of the 300 top-selling brand formulations listed in Schedule H2 of the drug rules must print a barcode or QR code on the pack. Scanning it shows details such as the unique product code, manufacturer, batch number and expiry date, which should match the printed pack and your invoice. From July 2027 the rules extend the requirement to all vaccines, anticancer and narcotic or psychotropic drugs, and to all antimicrobials from July 2028.
What should a pharmacy do if it finds a suspected fake medicine?
Stop selling it immediately, move the stock to a separate marked area, and keep the packs, purchase invoice and supplier details together. Then inform your area Drugs Inspector or the state drugs control administration, and tell the distributor you bought it from.
Check the current rules at the source
This guide is general information, not legal or tax advice. Rules change, so confirm anything that affects your licence or your filings with the authority itself:
- Central Drugs Standard Control Organisation (CDSCO)
- Health & Family Welfare Department, Government of Tamil Nadu
Related guides
How to choose a wholesale pharma distributor for your pharmacy · Reading a medicine pack: batch number, expiry date and MRP explained · Drug schedules explained: Schedule H, H1 and X for pharmacies · How to store medicines properly in your pharmacy (and why cold chain matters)
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