Aspirin:

The Wonder Drug

 

 

History:

          In the 5th century B.C., Hippocrates discovered that he could use the bark and leaves of the willow tree to relieve pain and reduce fever.  Unfortunately, the salicylic acid found in these properties of the willow tree upset the stomach of those who used it. It was not until the 1800’s that Felix Hoffman found the medicine we know as Aspirin today.  His father was suffering from arthritis, but whenever he took the salicylic acid, he would become sick.  After testing the salicylic acid for a period of time, he found that if he could cover up one of the acidic parts with an acetyl group.  This would transform the salicylic acid to acetylsalicylic acid, which is far less rough on the lining of the stomach.  By 1899, Friedrich Baker & Co., whom Hoffman worked for, was distributing this new wonder drug all over the world. 

 

                                                        

 

How does Aspirin work?

 

          Basically, it helps solve the body’s pain problems by keeping it from making prostaglandins.  In order to do this, the aspirin has to attach itself onto the enzyme cyclooxygenase 2, also known as COX-2.  The body produces this COX-2 in order to find chemicals in the tissues and make them into prostaglandins.  By attaching to the COX-2, the aspirin keeps it from doing what it is supposed to do.  It is important to note that the pain reliever in no way heals the problem causing the pain—it simply relieves the pain.  Once taken, the Aspirin travels to the stomach, where it then dissolves.  From here, it goes through the digestive tract to the small intestines, where the Aspirin is absorbed.  Now, the medicine enters the bloodstream where it is spread throughout the entire body.  Once spread throughout the body, the Aspirin tracks down the prostaglandins, which are generally near or around the spot of pain.  Unfortunately, in order to keep the lining in the stomach thick, the body needs prostaglandins.  The enzyme COX-1 makes the prostaglandin in the stomach.  Since aspirin attaches to all prostaglandins, the COX-1 is also affected, leaving the stomach lining thin.  Most likely, this is the reason that the stomach becomes upset after taking Aspirin or some other form of pain reliever.  After a certain amount of time, the body finds a way to get rid of all medicines.  The stomach and a few other organs change Aspirin into salicylic acid.  Then the liver get a hold of it and changes it a smidgen more by adding some other chemicals so the kidneys can filter it out of the blood and excrete it through the urine.  Generally, the process takes approximately 4-6 hours, at which point another dosage will need to be taken. 

 

Other uses for Aspirin:

 

          In recent years, Aspirin has been found useful in preventing heart attacks, strokes, and arthritis in addition to relieving pain, reducing inflammation, and reducing fevers.  As we discussed earlier, Aspirin attaches itself to prostaglandins in the body.  A few types of prostaglandins cause blood platelets (tiny particles in the blood) to stick together in order to form a clot.  These prostaglandins come in handy when a paper cut appears because they help stop the bleeding.  However, if Aspirin is in the body, the prostaglandins are unable to do their job, meaning that the bleeding will take longer than usual to stop.  Fortunately, this also means that aspirin will keep clots from forming in the area of the heart, thus preventing heart attacks.  In much the same way, Aspirin helps put a stop to strokes through thinning the blood.  As a result, many doctors prescribe Aspirin to prevent heart attacks and strokes in their patients.  For those who have already had a heart attack or stroke, Aspirin is taken to prevent another episode, as well as helping keep the patient alive. 

 

Reasons not to take Aspirin:

 

          There are a few people who should not take Aspirin.  Children under the age of sixteen who have chickenpox or flu symptoms should not take Aspirin under any circumstances.  Aspirin can cause a potentially deadly disease in children called Reye Syndrome.  Also, if someone is allergic to aspirin, aspirin-like products, or any part of the medicine, they should not take this medication.  People who have asthma, rhinitis, nasal polyps, or bleeding problems should stay away from aspirin.  Finally, women who are 24 weeks pregnant or more should not take aspirin—it may cause birth defects in the child.  There are also a couple precautions that should be paid attention to when taking aspirin.  First, avoid drinking alcoholic beverages, such as wine, beer, and liquor—the alcohol can cause stomach irritation.  Second, those who are 65 years old or older should take special precautions because they may have unusual side effects.  Third, if a patient has stomach ulcers or bleeding, he or she should contact a healthcare provider before taking the aspirin.  Lastly, do not take aspirin when taking any other medications.

 

 

Side Affects:

         

          There are only a few side affects that are often associated with aspirin.  The first side effect is nausea or vomiting.  Often, small frequent meals, frequent mouth care, sucking hard candy, or chewing gum helps calm the nausea and vomiting.  The next side effect often comes in the form of stomach pain or heartburn.  The final side effect is stomach bleeding or stomach ulcers.  In most cases, people should watch for dark stools that are black in color.  If anyone experiences any of these side effects, they should immediately contact their local doctor or healthcare provider.

 

 

Links:

 

Aspirin Foundation Home Page

How Stuff Works

How Aspirin and NSAIDs Work

Aspirin Facts

Molecule of the Month-Aspirin

Time Table

The Chemical Components of Aspirin