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Oral administration

life science Maturity 11-13 Next article →

Oral administration is a common way to take medicine. This means a person takes a substance through the mouth.

120310-F-XC314-001 (6979611329)
120310-F-XC314-001 (6979611329)

The person swallows the medicine. Then, the digestive system processes it. This way is often easier than an injection. An injection can be painful for many people. However, oral medicine can work slowly. It may not work well if it is not absorbed right. Some medicines might also cause nausea or vomiting.

Adminstering oral medication
Adminstering oral medication

There is a specific way this method works. First, the medicine enters the mouth. Next, the person swallows the substance. It travels through the digestive system. The body then tries to absorb the medicine. This allows it to reach the bloodstream. Sometimes, digestive enzymes break the medicine down too fast. If that happens, the medicine might not work as well. This is why the way it is absorbed matters so much.

Doctors use special words for this method. They use the Latin phrase "per os." This phrase means "through the mouth."

120310-F-XC314-001 (6979611329)
120310-F-XC314-001 (6979611329)

In medical notes, you might see the abbreviation "P.O." This stands for per os. Doctors write this on medical prescriptions. It tells people the treatment is taken orally. This is different from medicine used just inside the mouth. For example, some medicine is used only to prevent cavities.

Medicine comes in many different forms. Some are oral solid dosage forms, or OSD. These include tablets that you swallow or chew. You can also find capsules. Some capsules have a coating. This coating dissolves in the stomach or bowel. These are called chewable capsules. Other tablets are time-release. They release the medicine gradually.

Adminstering oral medication
Adminstering oral medication

You can also take powders or granules. Liquid forms include syrups or tea drops. Some people use water to help swallow pills. If a medicine tastes bad, a flavor can be added.

There are other ways to use the mouth too. These are part of enteral administration. You can dissolve medicine inside the cheek. This is called buccal administration. You can also dissolve it under the lip. This is called sublabial administration. Some medicine goes under the tongue. This is called sublingual administration. Many people think sublingual is a different route. This is because it can be absorbed very quickly.

120310-F-XC314-001 (6979611329)
120310-F-XC314-001 (6979611329)

Finally, a straw can help if medicine hurts teeth.

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File:Adminstering oral medication.jpg
Adminstering oral medication.jpg
File:120310-F-XC314-001 (6979611329).jpg
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