The Dangers of Expired Medications

Expired medications are commonplace and inertia notwithstanding, most of us tend to rely on an intuitive sense of their value in continuing to store and use them. Such drugs can be harmful to health in several ways; they can be unpredictable in effectiveness, simply ineffective, or even toxic.

The formal means of classifying a medication as having expired is through it's labeled expiry date. This date is usually set based on a combination of the most popular properties of the dosage form as well as the stability and expiration studies of the product that have been conducted by the manufacturer. Importantly, this expiry date is contingent on specific storage conditions of the product. Although a medication may pass it's labeled expiry date, it could certainly not be any less effective or dangerous to consume with regards to the product itself, the storage conditions and the circumstances before expiry.

When most medications pass their expiry date under appropriate storage conditions, they are generally taken to possess become so variable in effectiveness as to have become unsuitable for use. This often comes about as a result of the degradation of the active ingredients of the medication with exposure to physical, chemical or microbiological variables like temperature, pressure, humidity, light, bacteria in addition to other the different parts of the product known as excipients.

Creams may "crack" once their expiry date is passed, leading to a separation of the components and hence give a non-uniform delivery of active ingredients. This will lead to the poor control of conditions like eczema or acne. Tablet medications can mechanically "powder" off, change in consistency with experience of water vapor as well as experience the contained drug itself becoming ineffective on prolonged contact with air as occurs with glyceryl trinitrate, a crisis medicine that can easily become ineffective in relieving acute apparent symptoms of chest pain. With common injections, should the acidity change to fall outside a reasonably narrow range, significant pain and tissue damage can derive from use. With most eye drops, an expiry date of one month after opening is accepted to minimize the potential for dangerous bacterial contamination.

With any medication, once a certain threshold of remaining active component is passed, the medication can no longer be relied upon to deliver accurate doses. This loss in reliability is often exacerbated by the truth that the active ingredients can degrade into various combinations of active, inactive or toxic breakdown products. The most popular aspirin is for instance, proven to react with moisture to breakdown into salicylic acid, that is active, and acetic acid, that is inactive and can result in toxicity in excess.

While the expiry date provides a useful gauge of when to stop employing a medication, additionally there are many other factors that can informally accelerate the expiry of a medication and ensure it is dangerous to utilize, chief among which will be how a medication is stored. It's oftentimes not just the medication that's suffering from storage conditions but also the storage container. Under inappropriate storage conditions, certain containers can leech material into liquid medication preparations, or medication particles can stick to the container as opposed to remain separated. On average, a 10 degree rise in temperature doubles the rate of chemical reactions that occur to a medication product and can accelerate the rate of bacterial contamination several fold. Just like an ice cream can simply melt or perhaps a loaf of bread becomes mouldy much quicker or even refrigerated, many medication products can simply expire even faster when not stored appropriately.

With oral liquid and topical medications, potentially dangerous changes connected with expiry can occasionally be detected by color or consistency changes, component separations, altered smell or taste (oral preparations). Should a suspicion of expiry arise, a medication expert must be consulted irrespective of if the labeled expiry date has been passed.

"Expiry" also needs to be understood to happen once a method of getting medications is no more used appropriately for it's intended purpose. Consultation with a medication expert is always advised to avoid the inappropriate utilization of existing medication supplies. Inappropriate use can often occur with self-medication and is harmful. An unfinished supply of a previously used antibiotic might be tried to deal with a fresh infection that is actually untreatable by or resistant compared to that antibiotic. This practice may not only delay recovery but can also encourage the proliferation of "super bugs" which have resistance to numerous antibiotics. Another incorrect purpose involves sharing medications and this can be especially harmful if another is allergic to the shared medication or a young child or pet is medicated with an adult's medication. Children often require dose adjustments to allow for their size while many human drugs in many cases are unsuitable for pets. Even a simple food like chocolate that we might enjoy can easily be toxic to a dog dog.

Another mechanism whereby medication expiry is dangerous occurs when an unfinished supply can be used despite new information that points to increased precautions connected with the medication or that has resulted in it's recall. An illustration is obtaining treatment from a previous way to obtain a painkiller like Vioxx (rofecoxib) or Celebrex (celecoxib) in spite of an existing heart condition that's now recognized to relate genuinely to an increased threat of fatality under those circumstances of consumption.

Expired medications that are kept in place of discarded not only take up space but can in fact discourage the appropriate usage of new supplies in treating illness. A medication cabinet, or even tended to regularly, could eventually contain more expired medications than viable ones and this can result in the accidental usage of an expired medication as opposed to a practical one. It is certainly advisable to clear the medication cabinet of expired medicaitons at the very least annually or even more often.
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Another danger however, lies in how expired medications are disposed of. Expired medications and pharmaceutical byproducts could be damaging to the environment especially when they end up in our rivers and drinking water supply. Hormonal compounds like estrogen from contraceptive pills and patches in addition to antibiotics have been associated with being flushed by individuals and institutions into sewage, draining largely unchanged and collecting in rivers and streams, then returning in tiny amounts into drinking water. Traces of antibiotics could worsen bacterial resistance while estrogens and other steroids are known to improve the reproductive characteristics of fish. Even trace levels of chemotherapy medications have emerged in tap water and this could be severely detrimental to the unborn babies of pregnant women who drink such water. The long-term effect on human health of medications inside our rivers and normal water is confirmed unknown but no one would want to hold back to get out. We can all play our part by inquiring on and using pharmacy or state-run programs for the disposal of expired medications as opposed to sending them down the sink or the toilet bowl.

A pharmacist may be the expert of choice to approach in handling medication expiry and ought to be consulted if in doubt. As a general rule, it is definitely best to safeguard your own health and that of these around you by expeditiously and appropriately discarding all expired medications.

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