The term shelf life means the period of time during which drugs retain their therapeutic efficacy. For example, the shelf life of acyclovir, is the time during which it is possible to effectively and safely use an antiviral agent, and be sure of its therapeutic impact.
The starting date of this time interval is the time of manufacture of the medicament.
In conducting initial studies established a minimum period during which the drug loses its effectiveness. Upon further study of the drug and the development of information you may need to change the expiration date, in the direction of increasing and to reduce the time.
The shelf life of various forms of medicine
The drug Acyclovir Acre produced as ointments and tablets for oral use. The shelf life of these formulations varies considerably. For example, tablets can be stored for forty-eight months. A shelf life of acyclovir ointment is thirty-six months.
However, it should be noted that the above case of unopened packaging ointments. Usually, after the package is opened and piercing the protective membrane similar means a shelf life of about thirty days. This is due to the fact that the oxidation reaction occurring active agent, and it loses its therapeutic properties. If the packaging is no information about the shelf life of the drug after opening, it is considered that it retains its positive effect is the same period as before the autopsy.
According to the instructions, the shelf life after opening acyclovir ointment - thirty days. This means that from the moment of puncture the protective membrane, you have one month to use the drug for its intended purpose. After this period, a tube of ointment should be disposed of. So before you rush to open the medicine, you need to think carefully about the time when you start to use it.
Storage conditions
Under the conditions of storage of the drug is to be understood and space temperature, wherein the medicament can be stored during the entire expiry period. Certain medicines can only be stored at minus indicator thermometer, in a frozen state. Part preparations retains its therapeutic properties in a refrigerator at a temperature of up to eight degrees. A majority of drugs (including acyclovir), to be stored in a dry place at room temperature, between fifteen and twenty five degrees.
However, for all drugs, there are rules under which the storage should be done in a place inaccessible to children. Another important criterion for the storage site is that there do not get sunlight.
Shelf life and storage Acyclovir:
- expiration date for the ointment is three years;
- expiration date for tablets is four years;
- the drug must be maintained at a temperature not exceeding twenty-five degrees;
- after opening tube with ointment Acyclovir should be stored in the refrigerator for no more than thirty days.
Using Acyclovir means after the expiry date is strictly forbidden. It is also not recommended for use with a drug packaging factory damaged because the active substance may be oxidized and lose their therapeutic properties. For use of the drug Acyclovir must have the appropriate indications, the presence of which the attending physician will assign therapy with a dosage suitable to your disease.
sources:
Vidal: https://www.vidal.ru/drugs/aciclovir__4107
GRLS: https://grls.rosminzdrav.ru/Grls_View_v2.aspx? routingGuid = 1c2f1271-35fa-497d-b17d-07060cf7e6d7 & t =
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