You can, but at your own peril and risk, because side effects may occur that are not described in the instructions, and after that you will not get compensation from the manufacturer: 3
The question should rather sound like this: will there be any sense from these pills. It is necessary to take into account the storage conditions: humidity, temperature, the presence of sunlight. Some average conditions are written on the packages, for a certain acceptable shelf life. If you observe all these conditions as much as possible, then the shelf life is likely to last. The efficiency will not decrease significantly. And if you store it anyhow, then you may not even reach the expiration date
Sodium and nitrogen may or may not, but you - yes, they do not write instructions in vain, there are also no fools sitting there, and remember, a miser pays twice, you save on pills, then you will buy even more, but for new interesting symptoms from expired drugs ..
Any tablet contains active substances (chemical or organic compounds, plant extracts, etc.) and the usual neutral substances, fillers, these are usually stearates and starch.
As a rule, all substances do not react with each other, the activity decreases slightly with the interaction of substances inside the tablet, provided that the packaging is not broken. It is possible that any compounds from the composition of the tablet itself are formed inside the tablet, diffusion of substances, the development of fungi and bacteria (the tablets usually contain sugar and starch), destruction of the tablet shape are possible. This fact is taken as a basis by pharmaceutical companies, and not a decrease in the activity of compounds.
Drug manufacturers are interested in reducing the shelf life of drugs, to increase production and increase the turnover of drugs. The shelf life of many drugs was reduced in Russia after the collapse of the USSR, by lobbying the interests of drug manufacturers.
Personally, I also found drugs with an unlimited shelf life, those were mainly based on simple chemical compounds.
It depends on which pills and how many expired. This issue has been dealt with more than once by serious scientists (USA) due to the fact that states have state. stock, not only of gold and canned food, but also of pharmaceutical preparations, and periodically it needs to be updated, throwing out the unusable ones, and buying new ones. A natural doubt arose - is it right to throw them out? Well, the answer was "not quite", and that many drugs can remain fully active even after the expiration date, and this state of affairs can save millions of dollars by canceling frequent purchases of new. The only problem is that this point of view was very harshly accepted by pharmaceutical companies, and is still not very popular.
As far as I know, pharmaceuticals do not have a shelf life of more than 5 years, and chem. reagents - more than 10 years. Although everyone understands that, for example, with alcohol, hardly anything will happen after 5 or 10 years. I remember that we found out such things that aspirin can retain its effectiveness even after 30-40 years. And, in general, it all depends on the stability of the substance, its pharmacological form and storage conditions.
If the expiration date has expired 1 day or 1 month ago, then hardly anything at all will happen to the substance, but you should not risk more. It's not worth it, and you can't make a claim to the manufacturer either, because the warranty period has already expired. It is better to keep track of the expiration date you take at the pharmacy, whether you have time to use it up within the specified period of time.
Listen, what else is the power of sodium or nitrogen? It seems that you need to explain what chemistry is in general from scratch. There are different substances made from different elements, and the combinations of these elements are endless. A huge amount of organic matter is made from the same carbon, nitrogen, hydrogen and oxygen, some of them are toxic, some are drugs, some are necessary for us amino acids, carbohydrates, well, in short, a bunch of different its physical and chemical properties of substances.
Well, about the pills themselves. For some reason, they are given an expiration date. These reasons can be different: the substance in the tablet decomposes and turns into other substances, because of this, the activity decreases. These substances can be toxic or simply cause some kind of side reactions, allergies, diarrhea, headache or some other unpleasant effects. The tablet can simply absorb water or crumble, accumulate something from the environment. Manufacturers can study and take into account all this. Of course, they all do it with a margin, and most likely, if you eat a pill that has just expired, nothing will happen to you, and basically its composition has not changed much. But don't be surprised if you eat expired pills and have some side effects from them.
Can be used. The next day nothing will happen - that's understandable.
And try to imagine this situation. Sit in the plane, and the captain announces to you: "You know, our plane's inspection period expired yesterday, but don't worry - we won't crash." Most likely, you will really fly and not crash.
Our canned food was not sterilized for only 5 minutes in order to be safe with a guarantee. But don't worry. Botulism is not a threat to you. And you really won't get poisoned.
Something like that.