Translated from the Latin per os is through the mouth.This is how the majority of accepted drugs.In today's recipes do not use this phrase in Latin, the need for this anymore.

Why so

Traditionally doctor prescribes taking medicines by mouth, this method is the most common, because many drugs are readily soluble under the action of gastric juice, providing optimal absorption of the walls of the body, as well as the walls of the intestine.Oral and shows the reverse situation - when the drugs are poorly absorbed stomach.Good therapeutic effect of such treatment is achieved by maximizing the concentration of drug in the stomach, allowing successfully treat diseases of the body.

But oral medications is not without disadvantages.The most signifi
cant of these is the long time it takes before the start of the ingested pills.Moreover the bioavailability of the drug, i.e. the rate of absorption and complete absorption at each person is different and depends on the age, state of the gastrointestinal tract, ingestion features, and sometimes on the floor.Some drugs have very low bioavailability in themselves.Therefore, if the guide means to indicate that the bioavailability is 30%, it is necessary to look for any other drug or buy the same, but in another form, for example, suppositories.

Features oral

In some cases, oral administration is simply impossible, especially when vomiting, fainting and infants.It is worth noting that sometimes taking medicines inside impractical because the creation of harmful metabolites, capable of inflicting great damage to the liver.The most rational to take medication into the morning, 20-30 minutes before breakfast.At this time, the body has no time to activate the secretion of digestive juices, so the greater the likelihood that the drug will not lose its activity due to their devastating impact.

reduce irritating drugs on the stomach wall can be, if you drink plenty of water.And taken strictly on prescription or instructions, as some medications, such as tablets and capsules retard retard can not be crushed.In this case, they may lose their properties.Some medications, eliminating one disease caused by other, so you need to take them under the guise of another means.It may appoint a doctor.