Could your own medicine cabinet be a hidden health hazard? As the seasons change, a leading expert warns that a spring clean for your first aid supplies is not just about tidiness—it's a critical safety check.
The Hidden Dangers of Out-of-Date Medicines
Deborah Grayson, a pharmacist with three decades of experience, has issued a stark reminder about the potential "horrors" lurking in our bathroom cabinets. While a well-stocked supply of over-the-counter treatments is important, the crucial factor is ensuring every item is still safe and effective to use.
The NHS recommends a clear-out every three months, but many of us ignore expiry dates. "After this time frame, the manufacturer cannot guarantee the product is effective," warns Grayson. "It may be unsafe to use, or have become contaminated by bacteria." This risk is particularly high for eye drops and oral medicines.
Expert Storage and Disposal Guide for Common Items
With the rise of medications requiring fridge space, like GLP-1 weight loss jabs and various HRT products, proper storage is more complex than ever. Here is a breakdown of how to handle common cabinet items.
Skin Creams & Ointments: Once opened, creams in tubes or tubs should be used within three to six months. Out-of-date steroid creams pose a special risk if used on open wounds, as they can introduce bacteria and suppress the immune response.
Pain Medication: Paracetamol and ibuprofen in blister packs are generally safe until their expiry date. However, aspirin is highly susceptible to oxidation, especially in bottles. If it smells strongly of vinegar, throw it away immediately, as it can damage the stomach lining.
GLP-1 Injections (e.g., Mounjaro, Wegovy): Unused pens must be refrigerated (2-8°C). A pen in use can be kept at room temperature (below 30°C) for up to 30 days, after which any remaining dose must be discarded to avoid infection risk.
HRT Products: These should be stored below 25°C but not refrigerated. They are safe until the last day of the expiry month. Using out-of-date HRT may reduce hormone levels, potentially lowering protection against conditions like endometrial hyperplasia.
Cough Mixture: Once opened, bacteria can contaminate the bottle. Unless the manufacturer states otherwise, discard any leftover liquid after six months. Sugar-based syrups like Benylin should be thrown away after just four months.
Don't Forget These Often-Overlooked Items
Your declutter shouldn't stop with pills and potions. Other common healthcare products also have strict shelf lives.
Hayfever & Antibiotic Eye Drops: Most must be discarded 28 days after opening. Ignoring this rule significantly increases the risk of a painful eye infection. Always mark the opening date on the bottle.
Plasters and Dressings: These all expire. Old plasters lose their adhesive and can introduce bacteria to a wound. If out-of-date dressings are your only option, monitor the wound closely for infection and replace them promptly.
Antihistamines & Vitamins: Out-of-date antihistamines are unlikely to cause harm but will lose effectiveness, which is dangerous for severe allergies. Vitamin C, especially effervescent forms, oxidises and darkens over time, becoming ineffective.
Deborah Grayson's final advice is simple: "Always be on the safe side and check your pills and creams are in date before using them." A regular, thorough review of your medicine cabinet is a small task that can prevent significant health complications.
