Alexei Volkov
There are no pills made of plastic, but some pills have a plastic-like coating. These coatings are made from biodegradable materials extracted from plants and animals. The coating on a pill can affect how the drug is absorbed by the body. Some pills have a special coating that prevents them from breaking down in the stomach, ensuring that they only dissolve after entering the small intestine. The rate at which pills dissolve in the stomach can be affected by factors such as stomach contents, gastric fluid dynamics, posture, and body positioning.
| Characteristics | Values |
|---|---|
| Plastic pills | Do not exist |
| Pills with plastic coating | Do not exist |
| Pills with biodegradable coating | Exist |
| Pills with gelatin coating | Exist |
| Pills with cellulose coating | Exist |
| Pills with sugar coating | Exist |
| Pills with edible spray-on or gel lubricant | Exist |
| Pills with no coating | Exist |
| Pills with extended-release coating | Exist |
| Pills with sustained-release coating | Exist |
| Factors affecting dissolution | Stomach contents, gastric fluid dynamics, posture, body positioning, shape of the pill, etc. |
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What You'll Learn
- Pill coatings are made from biodegradable materials, not plastic
- Pills dissolve at different rates and are affected by posture
- Tablets are coated to prevent disintegration in the stomach
- Capsules are made of gelatin, which dissolves in the stomach
- Undigested pills in stool can be normal, but may indicate malabsorption
Pill coatings are made from biodegradable materials, not plastic
There is a common misconception that pills have plastic coatings. However, pill coatings are made from biodegradable materials, not plastic. The coating of a pill is designed to hold the pill together and improve its taste, texture, or appearance. They can also be used to prevent the pill from breaking down in the stomach, ensuring that the pill only dissolves after entering the small intestine. This can be especially helpful for people who have trouble swallowing.
The misconception that pills are coated in plastic may stem from the presence of plasticizing chemicals in some medications and supplements. These plastic additives are designed to release the ingredients into our systems more slowly, but researchers have found that they could be making us sick. In a study published in the journal Environmental Health Perspectives, it was found that 10 to 20 percent of sampled pills on the market contained two types of plasticizing chemicals tied to lifelong health problems. These plastic chemicals, known as phthalates, are often found in products like vinyl flooring, cleaning supplies, and personal care items.
It is important to note that while pill coatings are not made of plastic, they may still contain other additives or inactive ingredients that can affect the body. For example, tablets are often coated with sugar or similar substances to improve taste and prevent the drug from immediately entering the bloodstream. However, this can also increase the likelihood of a sensitivity or allergy.
Pill coatings are typically made from biodegradable materials extracted from plants and animals. For example, many capsules are made of gelatin, which dissolves in the stomach and has no negative effects on the body. This is different from plastic, which does not easily break down and can be harmful to the body.
Overall, while pill coatings may look and behave like plastic, they are made from biodegradable materials that are safe for human consumption.
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Pills dissolve at different rates and are affected by posture
The dissolution of pills in the stomach is a complex process influenced by various factors, including pill composition, stomach contents, and gastric fluid dynamics. Additionally, it has been recently discovered that an often-overlooked factor, body posture, can significantly impact how quickly a pill dissolves.
Researchers at Johns Hopkins University developed a model called "StomachSim," which couples gastric biomechanics with pill movement and drug dissolution. This innovative simulation platform offers valuable insights into the complex physiological processes involved in oral medication administration. By testing four different postures, the team discovered that body position indeed influences how fast the medicine is absorbed.
The simulation revealed that lying on the right side was the most effective posture for dissolving pills. In this position, the pill reaches the deepest part of the stomach, dissolving up to twice as fast as when taken in an upright posture. On the other hand, lying on the left side or leaning to the left was the least effective position, resulting in a significantly slower absorption rate.
While the study highlights the significance of posture in pill dissolution, experts advise against changing medication routines without consulting a healthcare provider. Pills are typically designed with a normal posture in mind, such as standing or sitting upright. Altering the posture without medical advice may lead to unintended consequences in how the medication is absorbed and distributed in the body.
It is worth noting that the impact of posture on pill dissolution is comparable to the effect of certain stomach disorders, such as gastroparesis, which slows down the emptying of the stomach. Therefore, for individuals with such conditions, the choice of posture or position while taking medication may become even more crucial.
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Tablets are coated to prevent disintegration in the stomach
The human stomach has an intensely acidic pH of around 3. Some drugs are unstable at this pH and need to be protected from degradation. Drugs that have an irritant effect on the stomach, such as aspirin or potassium chloride, can be coated with a substance that will stop them from dissolving in the stomach and instead will only dissolve in the small intestine, which has an alkaline pH of 7-9. This type of coating is called an enteric coating.
Enteric coatings are polymer barriers applied to oral medication to prevent its dissolution or disintegration in the gastric environment. They are stable at the acidic pH found in the stomach but break down rapidly at a higher pH. Materials used for enteric coatings include fatty acids, waxes, shellac, plastics, and plant fibers. Conventional materials used are solutions of film resins. However, as the solvents for such solutions are organic solvents, there is a concern about the toxicity potential of the traces of the residual solvents in the tablet coating.
Enteric-coated tablets are commonly used to protect drugs that are sensitive to stomach acid or that can irritate the stomach lining. They can also be used to protect the stomach from the detrimental effects of certain drugs. For example, some proton pump inhibitors are acid-activated, so an enteric coating can prevent activation in the mouth and esophagus.
Enteric coatings can also be used to regulate the rate and site of drug release in the gastrointestinal tract. This can be useful for drugs that are preferentially absorbed in distal portions of the gastrointestinal tract. However, delayed intestinal disintegration of enterically coated formulations may have undesirable clinical consequences, such as reduced bioavailability or delayed or ineffective therapeutic response.
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Capsules are made of gelatin, which dissolves in the stomach
Capsules are a common method of oral medication, enclosing medication in an outer shell. This outer shell is broken down in the digestive tract, and the medication is then absorbed into the bloodstream. There are two main types of capsules: hard-shelled and soft-gel. Hard-shelled capsules are made in two halves, with one half fitting inside the other to form a closed casing. They are filled with dry medication in powder or pellet form.
Hard-shelled capsules are typically made from aqueous solutions of gelling agents, such as animal protein (mainly gelatin) or plant polysaccharides or their derivatives. Gelatin is a common ingredient in capsules, derived from animal bones, cartilage, and skin. It is a flavourless, colourless, jelly-like substance with a high protein content. Gelatin is manufactured by processing animal bones, cartilage, and skin to extract collagen, a fibrous protein that connects muscles, bones, and skin.
The gelatin capsule is then filled with medication in powder or pellet form. The capsule dissolves in the stomach, releasing the medication to be absorbed into the bloodstream. This process is similar to that of tablets, which can also be coated to prevent them from breaking down in the stomach, ensuring they only dissolve in the small intestine.
Soft-gel capsules are also available and are primarily used for oils and active ingredients that are dissolved or suspended in oil. These capsules are filled and sealed at the same time on a rotary die machine. They can be an effective delivery system for oral drugs, especially poorly soluble drugs, as they can contain liquid ingredients that improve solubility or permeability across body membranes.
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Undigested pills in stool can be normal, but may indicate malabsorption
The discovery of undigested pills in one's stool can be alarming, but it is important to remember that this occurrence can be normal for certain types of medication and does not necessarily indicate a problem with your digestive tract. However, in some cases, it could point to impaired intestinal absorption or abnormal gastrointestinal (GI) motility, warranting further investigation.
Undigested pills in stool may result from various factors, including the design of the medication itself. Some pills are designed with a special coating to prevent disintegration in the stomach, ensuring they only dissolve in the small intestine. These include "extended-release" or "sustained-release" medications, which slowly release the drug into the body over 12 to 24 hours. In such cases, finding the outer shell of the pill in the stool, sometimes referred to as a "ghost pill," is not uncommon, as the active ingredients have already been absorbed.
Additionally, the presence of undigested pills can be influenced by individual factors. For example, certain medical conditions, such as diarrhea or intestinal disorders, can cause drugs to pass through the intestines too quickly for complete absorption. In other cases, the intestines may contract faster than normal, leading to the excretion of drugs before they can be fully absorbed. While rare, taking medication incorrectly can also impact absorption, although this is unlikely to result in the excretion of intact pills.
If you notice undigested pills in your stool, it is advisable to consult your healthcare provider. They can assess whether this is a typical occurrence for your specific medication and determine if any adjustments or alternative treatments are necessary. Monitoring your response to treatment and checking for traces of medication in the pill shell can also provide valuable information about drug absorption. While finding undigested pills in your stool can sometimes be normal, it is always best to seek professional advice to ensure your medication is working effectively.
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Frequently asked questions
A capsule consists of powder or jelly enclosed in a dissolvable plastic container.
Capsules include medication that is enclosed in an outer shell. This shell is broken down in the digestive tract and the medication is absorbed into the bloodstream.
According to the Orlando Clinical Research Center, it takes approximately 30 minutes for a capsule to dissolve in the body.
If a pill does not dissolve in the stomach, it could be due to various reasons such as impaired intestinal absorption, abnormal gastrointestinal (GI) motility, or diarrhea. It is recommended to consult a healthcare provider if undigested medications are found in the stool.
Yes, according to a study published in the journal Physics of Fluids, lying down on the right side is the most effective position for pill dissolution, with a rate of roughly 2.3 times faster than when upright or lying flat on the back.
