A lot happens in your body after you take a pill. Drugs that enter the body are transformed by myriad biochemical reactions that either break down the drugs into simpler substances or combine them (or parts of them) with natural body substances. This is the process of drug metabolism. Drug developers are attentive to the complexities of drug metabolism, because the way medications are processed in the body can make the difference between a drug that is safe and one that is ineffective or even harmful. Here's how it works.Some portion of a drug may be lost as it passes through the gastrointestinal tract. Digestive enzymes in the stomach and the intestines can break down drugs, as can the actions of bacteria that normally live in the gut. Drugs can also interact with foods and beverages in the gastrointestinal tract, in some cases reducing, but in other cases increasing, the amount that gets absorbed.
After being absorbed through the gut, drug molecules travel via the portal vein to the liver. The liver is where most of the work of drug metabolism takes place. As the liver metabolizes drugs, it may produce chemical byproducts that are toxic to the liver itself. This is why taking too much of certain medications or taking them too often can harm the liver. The most common example of such a drug is acetaminophen (Tylenol).
In the liver, the work of drug metabolism is performed by enzymes (proteins that facilitate biochemical reactions). The liver's cytochrome P-450 system comprises more than two dozen chemically related enzymes that metabolize drugs.
Whatever remains of a medication after metabolism in the liver enters the hepatic vein, which carries blood from the liver to the heart. The heart then pumps the drug molecules out into the general circulation, which carries the drug throughout the body to its eventual target organ (and many other locations as well). Any molecules of the medicine that remain after traveling through the circulatory system eventually re-enter the liver via the hepatic artery, where the metabolic system can process them further.
The body excretes or eliminates water-soluble medications and their breakdown products (also known as metabolites) primarily in the kidneys, and the metabolites then pass out of the body through urination. Some medications or byproducts of drug metabolism that were handled by the liver pass back into the digestive tract through bile and later exit the body in the feces. Medications may also leave the body in saliva, sweat, exhaled air, and even in a mother's breast milk.
Source: A Johns Hopkins University publication—“The Life Cycle of a Pill” --posted in Prescription Drugs on February 17, 2009--
The above article fails to highlight the fact that while a portion of a drug is absorbed and removed, a certain amount of the drug can stay in the system. It should be noted that some of the substances that remain in the system may be tucked away in the joints eventually causing such diseases as arthritis, while the other remaining substances can cause various other adverse effects. These adverse effects are far too many to name. I will touch on just a few of them.
Note that some of the remaining metabolized and/or the un-metabolized substances may find their way into the arteries as they are circulated around the cardiovascular system. This, unfortunately, can consequently fuel the plaque that is responsible for causing
hardening of arteries (arteriosclerosis/ atherosclerosis) that ends up in heart disease, and so on.
Many pharmaceutical drugs, being non-carbon-based
1, may be inherently toxic. They also may not—or cannot—be fully utilized by the human cells and can therefore eventually, if not immediately, lead to side effects and/or harm. For example, certain types of diabetic drugs can cause heart failure. Hence, the U.S. Food and Drug Administration (FDA) determined that “an updated label with a "boxed" warning (FDA's strongest form of a warning)
2 on the risks of heart failure was needed for the entire thiazolidinedione class of antidiabetic drugs. This class includes Avandia (rosiglitazone), Actos (pioglitazone) Avandaryl (rosiglitazone and glimepiride), Avandamet (rosiglitazone and metformin), and Duetact (pioglitazone and glimepride).” (Refer August 14, 2007 News Release by FDA).
Heart failure aside, the liver and kidneys, being detoxing organs, often bear the brunt of the onslaught of pharmaceutical drugs, resulting in such problems as liver cancer and kidney failures.
For many people, the effect of drugs consumed may be discovered too late; they die before any drug manifestations appear.
You may say the above notes are not fair to pharmaceutical drug companies
3. After all, they have helped a lot of people. But let me ask you a question:
“
Is it fair to you or your body to experience all the side effects, such as diseases and pains, that can stem from constantly being drug-takers? ”
Feel free to comment—
Ray Chee
1 The human body is carbon-based. Hence, in my opinion, non-carbon-based pharmaceutical drugs are incompatible with the body!
2 not part of original sentence
3 I'm not attacking any company as such. Yes, drugs in general have certainly helped a great many people, at least in the short term. However, it's a well-known fact that all drugs do produce side effects of one kind or another; many even generate a multitude of side-effects! Study after study on the effects of pharmaceutical drugs has shown that to be true.