Almost every home in Romania has a drawer or a kit full of medicines — and some of them are, almost certainly, expired. What does the expiry date really mean, when does it become dangerous to use a medicine that is past its date and, above all, what is the correct thing to do with the ones you can no longer use: do not throw them in the trash and do not pour them down the toilet. Here is a practical, step-by-step guide for patients.
What the expiry date actually means
On every medicine box you will find a date preceded by „EXP” or by the wording „Use by”. This is the date up to which the manufacturer guarantees that the medicine keeps its declared identity, strength (active dose), quality and purity — on one condition: that it has been stored exactly under the conditions stated on the packaging. The shelf life is established through stability studies, in line with the EMA and ICH guidelines, and is approved by the regulatory authority, in Romania the ANMDMR (the National Agency for Medicines and Medical Devices of Romania).
Two important points:
- If only the month and year are printed on the packaging (for example EXP 03/2027), the medicine is valid until the last day of that month (31 March 2027, in this example).
- „Expired” does not automatically mean „poison”, but it does mean „no guarantee”. After this date, the concentration of the active substance may drop, and sometimes degradation products may form. No one can tell you with certainty how well it still works — and that is exactly the problem.
Expiry vs. PAO — two different things
Many patients confuse the shelf life on the sealed box with the period of use after opening. These are two distinct dates:
- The shelf life (EXP) applies to the sealed, unopened product, stored correctly.
- PAO (Period After Opening) is the interval during which the product can still be used safely after the first opening. It is marked by a symbol shaped like an open jar, with a number followed by „M” (for example „6M” = 6 months) — or it is stated explicitly in the patient leaflet.
PAO matters especially for multi-dose products, which become contaminated or degrade after opening: eye drops (often 28 days after opening), syrups, suspensions, ointments, insulin pens, nasal sprays. A bottle of eye drops may be „within date” on the box, yet already fit for disposal if you opened it two months ago. Always check the patient leaflet — you can learn how to read the leaflet correctly in this guide.
A special case is children’s antibiotics in the form of a powder for oral suspension (for example amoxicillin): they are prepared with water at the pharmacy or at home. After reconstitution, the shelf life drops dramatically — typically 7–14 days, kept refrigerated, according to the leaflet — regardless of the long date on the box. The same happens with many antibiotics in liquid form.
Why it is not a good idea to use expired medicines
The risk is not the same for all medicines. For an ordinary tablet taken occasionally, being a few days past its date may mean only a slightly reduced effect. But for medicines on which life or the control of a disease depends, a drop in concentration can be dangerous:
- Emergency medicines: nitroglycerin (angina attack), the adrenaline in the auto-injector for anaphylactic shock, the salbutamol in asthma inhalers — they lose potency and may fail to work just when you need them most.
- Chronic treatments: insulin, thyroid hormones, medicines for the heart or blood pressure — a „weakened” dose means poor control of the disease.
- Contraceptives: the effectiveness of oral contraceptives drops if they are expired, with a risk of unwanted pregnancy.
- Antibiotics: besides the risk of treatment failure, an insufficient dose encourages bacterial resistance.
- Liquid and sterile products: syrups, suspensions and eye drops can become microbially contaminated or change their composition.
There is also the rarer risk that degradation produces unwanted substances. A classic example, documented in the toxicology and pharmacology literature, is that of degraded tetracycline, which has historically been associated with kidney damage (Fanconi syndrome). The practical conclusion is simple: an expired medicine may, at best, be ineffective and sometimes risky — the gamble is not worth it.
How to check the expiry date correctly
- Look for it in several places: on the box, on the blister and on the bottle. Sometimes the box has been lost, but the date is also printed on the foil.
- Identify the format: „EXP”, „Use by”, „Exp. date”. Next to it you will usually find the batch or series number („Lot” / „Series”) — useful if a market recall is announced by the ANMDMR.
- Take storage conditions into account. A medicine stored incorrectly (in heat, humidity or sunlight) may be „for disposal” even before its date. See the guide on storing medicines correctly.
- Check the appearance: if a tablet has changed color, crumbled or become stained, if a syrup has separated or smells strange, if a cream has separated into layers — do not use it, regardless of the date.
- Write the opening date on the bottle (drops, syrups) so that you can apply the PAO rule.
| Type of product | What to check | Note |
|---|---|---|
| Tablets / capsules (blister) | EXP on the box and on the foil | The most stable, but do not use them expired |
| Eye drops | EXP + opening date | Often 28 days after opening |
| Syrups / suspensions | EXP + PAO from the leaflet | Short shelf life after opening |
| Reconstituted antibiotic powder | Reconstitution date | Typically 7–14 days, refrigerated |
| Insulin pen | EXP + days after first use | See the leaflet (often 28 days) |
Why you should NOT throw them in the trash or toilet
The reflex to throw expired medicines into household waste or to flush them down the toilet is wrong and harmful:
- In the toilet or sink: treatment plants do not fully retain pharmaceutical residues. Antibiotics, hormones, anti-inflammatories and other substances reach rivers and groundwater. The WHO and the EMA have documented the presence of medicine residues in the environment, with effects on aquatic wildlife and a contribution to antibiotic resistance.
- In household waste: the substances can leach from landfills, and medicines thrown away carelessly can end up within reach of children or animals.
By law, expired medicines must be collected separately from household waste — in Romania, the waste regime is governed by Emergency Ordinance no. 92/2021 on the waste regime (which repealed and replaced the former Law no. 211/2011), in line with the policies of the Ministry of Health and of the European Union. One clarification: in the European waste classification, only cytotoxic and cytostatic medicines (those used in chemotherapy) are classified as hazardous waste; ordinary household medicines are not labeled as hazardous, but they must still be collected separately, not mixed with regular waste.
Where to take expired medicines in Romania
The good news: you do not have to keep them in the drawer forever. You have several options:
- At the pharmacy: in Romania there is not yet a mandatory national medicine take-back program, but some pharmacies may have containers or collection points for expired medicines. Acceptance is voluntary and varies from one pharmacy to another — call or ask in advance whether your pharmacy accepts medicines brought in by patients, so that you do not make the trip for nothing.
- Municipal points for household hazardous waste: many town halls and sanitation operators organize the collection of household hazardous waste (including medicines), either periodically or at dedicated centers.
Before handing them in:
- Take the medicines out of their cardboard boxes and leaflets (the paper is recycled separately).
- Leave the tablets in their blister or put them in a bag; for liquids, keep the bottle closed.
- Erase or cover any personal details on the packaging (for example the label of a prescription).
- Do not mix the medicines with food or with other waste.
How to avoid accumulating expired medicines
The best way to manage expired medicines is to have as few of them as possible. A few simple habits help:
- Check your home kit at least twice a year and remove anything that has expired. The guide on the travel kit helps you keep it up to date, including for trips.
- Buy only what you need; for chronic treatments, avoid huge stockpiles „just in case”.
- Use the „first in, first out” principle: place the boxes with the shorter date at the front.
- Store medicines correctly (a cool, dry place, away from light) so that they do not degrade before their date — details in the guide on storing medicines.
- When you buy, check the shelf life and the authenticity of the packaging — see how to recognize an authentic medicine.
When to ask the pharmacist or doctor
- If you have accidentally taken an expired medicine and have unusual symptoms — call the pharmacist or, in an emergency, 112.
- If you are not sure how long a product is valid after opening or after reconstitution.
- If an essential medicine has expired (insulin, inhaler, nitroglycerin, adrenaline auto-injector) — do not rely on it and ask for a prescription renewal in good time.
The pharmacist is the most accessible specialist in the health system: they can check dates for you, tell you how much longer you can use an opened product and, in many cases, take in expired medicines for collection. For any decision about your treatment, always ask your doctor or pharmacist.