The expiry date on a medicine is the date until which the manufacturer guarantees full potency and safety under correct storage. After that date, the active ingredient slowly degrades — some medicines become less effective, and a few become genuinely dangerous.
The biggest risks are the ones people ignore. Old tetracycline antibiotics, expired insulin, liquid medicines that have crystallised or changed colour, and medicines stored in heat or humidity degrade fastest. In Pakistan's climate, medicines stored badly can fail before their printed date.
A useful distinction: expiry dates apply to unopened, correctly stored products. Once a bottle is opened, most medicines have a shorter practical life — many eye drops, syrups and inhalers have specific in-use limits. Read the leaflet and ask the pharmacist.
The simple rules: buy from pharmacies that rotate stock (expiry dates matter for retailers too), store medicines correctly, check dates before use, and never take expired medicines — return them to the pharmacy for proper disposal instead of flushing them or throwing them with household waste.
Are expired medicines dangerous?
Expired medicines lose potency and some become genuinely dangerous — old tetracyclines, expired insulin and degraded liquids are the highest risks, and no expired medicine should be used.
What should you do with expired medicines?
Return them to the pharmacy for proper disposal — never flush them or throw them with household waste, and check dates before every use.
How do you check medicines for expiry and store them properly?
Create a simple twice-yearly medicine cabinet routine. Every six months — for example on the first day of January and July — empty the cabinet and check each pack: the expiry date, the condition of the packaging and, for liquids, any colour change, crystallisation or unusual smell. Return any expired or damaged medicine to the pharmacy for proper disposal — never flush it or throw it with household waste. As you replace items, put the soonest-expiring packs at the front so you use them first, and note dates on the packaging with a marker if the print is small. Store medicines in a cool, dry cabinet away from sunlight, heat and humidity — not the bathroom, not the kitchen near the stove, and never the car. Remember that opened medicines have shorter practical lives than the printed date suggests, especially eye drops, syrups and inhalers — check the leaflet or ask the pharmacist. This twenty-minute routine twice a year is one of the cheapest safety habits a household can adopt.
