Omar Khalid
The plastic coating on pills, often referred to as an enteric coating, is a polymer applied to oral medication. It acts as a barrier to prevent the capsule from being digested in the stomach, allowing it to pass through the stomach intact and release the medication in the intestine. This coating is particularly useful for medications that can cause stomach irritation or ulcers, such as NSAIDs, and natural products like fish oil and peppermint oil. The coating also masks bitter tastes, increases shelf life, and provides a hard cover for crumbly compounds. While most coatings are made from gelatin, a form of animal-derived collagen, some pills may contain plasticizing chemicals like phthalates, which have been linked to potential health risks.
| Characteristics | Values |
|---|---|
| Purpose | To prevent the capsule from being digested in the stomach, mask bitter taste, increase product shelf life, and prevent damage to the stomach lining |
| Composition | Biodegradable materials, gelatin, polymers, plasticizers, pigments, opacifiers, glidents, binders, anti-tacking agents, anti-foaming mechanisms, surfactants, fillers, and extenders |
| Function | Delayed release, immediate release, sustained release, targeted release |
| Risks | Some coatings contain phthalates, which are tied to lifelong health problems |
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What You'll Learn
Plastic coating on pills is not plastic, but gelatin
The "plastic coating" on pills is not actually made of plastic. It is a common misconception that pills have plastic coatings, but this is false. The coating on pills is typically made of gelatin, a translucent, colourless, and flavourless food ingredient derived from collagen in animal body parts. Gelatin is a brittle, gummy substance that dissolves in stomach acid with no negative effects on the body.
The confusion likely arises from the fact that gelatin capsules resemble plastic in appearance and behaviour. They can be broken or pulled apart, and they are often used to encapsulate medications. However, gelatin is a natural, biodegradable material extracted from plants and animals, not plastic.
The pharmaceutical industry has utilised gelatin coatings for many years to protect medications from the stomach's acidic environment. Without this coating, many drugs would rapidly disintegrate in stomach acid, reducing their effectiveness. By using a gelatin coating, the active ingredients in medications can be delivered at the appropriate time during digestion, such as in the intestine rather than the stomach.
In recent years, concerns have been raised about the presence of plastic additives in pill coatings. Studies have found that certain plasticizing chemicals, known as phthalates, are used in some pill coatings to release ingredients more slowly. These phthalates have been linked to lifelong health problems and can be found in various products beyond pills, including vinyl flooring, cleaning products, and personal care items. As a result, consumers are encouraged to be cautious and read labels carefully to avoid exposure to these potentially harmful chemicals.
Overall, while pill coatings may look and behave like plastic, they are typically made from gelatin or other biodegradable materials. The coatings play a crucial role in ensuring the effectiveness of medications and protecting the body from potential irritation caused by certain drugs.
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Plastic coatings prevent pills from dissolving in the mouth
Plastic coatings on pills, also known as enteric coatings, are designed to prevent the medication from dissolving until it has passed through the stomach. This is particularly useful for medications that can cause stomach irritation or harm the stomach lining, such as NSAIDs. By coating these pills, the risk of developing stomach ulcers, bleeding, or injuries to the gastrointestinal tract is reduced.
The coatings also serve other purposes, such as masking bitter tastes, providing a hard cover for crumbly compounds, increasing product shelf life, and allowing for immediate, delayed, or sustained release of the medication. These coatings are typically made from biodegradable materials, such as gelatin derived from animal sources or plant-based alternatives like HPMC and pullulan.
While the term "plastic coating" is sometimes used to describe these coatings, it is a misnomer. The coatings are not made of traditional plastics derived from petroleum products. Instead, they are made from edible, biodegradable materials that are safe for human consumption and will not negatively affect the body.
However, it is important to note that some pills may contain plasticizing chemicals or additives, such as phthalates, which are tied to lifelong health problems. These chemicals are designed to release the ingredients more slowly, but they can be harmful. It is recommended to be wary of labels with terms like "enteric-coated," "time release," or "film-coated," as these may indicate the presence of phthalates.
Overall, while the plastic coatings on pills are not truly made of plastic, they serve an important function in protecting the medication and ensuring its effectiveness, as well as improving the patient experience by masking unpleasant tastes or textures.
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Plastic coatings can cause harm to the stomach
The plastic coating on pills, known as an enteric coating, is a polymer applied to oral medication. Its purpose is to prevent the medication from dissolving or degrading in the stomach so that it reaches the intestinal tract intact. This coating is especially useful for natural products such as fish oil and peppermint oil, which can cause unwanted effects on the upper GI tract if released in the stomach.
However, the use of plastic coatings on pills has come under scrutiny due to the presence of phthalates, which have been linked to increased exposure to harmful chemicals. While the risk to adults is uncertain, it is recommended that exposure to infants and pregnant women be minimised.
Furthermore, while enteric coatings protect the stomach from the harmful effects of certain medications, they can also cause harm themselves if the coating material is not suitable for the individual. For example, some people may have allergies or sensitivities to specific coating materials, which could lead to adverse reactions in the stomach or other parts of the digestive tract.
In addition, while enteric coatings are designed to protect medications from the harsh stomach environment, there is a risk that the coating may not dissolve properly, especially if the pH conditions are not optimal. This could result in the medication passing through the body without being fully absorbed, reducing its effectiveness.
While enteric coatings have their benefits, such as protecting medications and preventing unwanted side effects, it is important to consider the potential risks associated with the coating materials and ensure that they are safe for consumption and suitable for individual needs.
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Plastic coatings are used to mask bitter tastes
Plastic coatings on pills, also known as enteric coatings, are used to mask bitter tastes, prevent capsules from dissolving in the mouth, and protect the stomach from certain medications. The coatings are made from a variety of materials, including gelatin, polymers, and other plasticizing chemicals. While the coatings may look and behave like plastic, they are made from biodegradable materials, such as plants and animals.
The primary purpose of enteric coatings is to prevent the capsule from being digested in the stomach, allowing the medication to reach the intestinal tract intact. This is particularly important for medications that can cause irritation or damage to the stomach lining, such as NSAIDs, which are commonly taken for pain relief or arthritis. By coating the pills, the risk of developing stomach ulcers, bleeding, or injuries to the upper gastrointestinal tract is reduced.
In addition to protecting the stomach, enteric coatings can also enhance the efficacy of certain natural products, such as fish oil and peppermint oil. Without the coating, these products may release in the stomach, decreasing their effectiveness and potentially causing unwanted effects on the upper GI tract.
It is important to note that some plastic additives used in pill coatings, known as phthalates, have been linked to potential health risks. These chemicals are designed to release the ingredients into the body more slowly, but they may have negative long-term effects. Labels that include terms like "enteric-coated," "time release," or "film-coated" may indicate the presence of phthalates. Patients concerned about the coating of their medication can consult their pharmacist or refer to the product label for more information.
While the term "plastic coating" is commonly used to describe the outer layer of pills, it is important to understand that these coatings are not made from traditional plastics. The pharmaceutical industry utilizes biodegradable materials to create a protective barrier that ensures the safe and effective delivery of medications to the intended site of action within the body.
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Plastic coatings can be used to increase shelf life
Plastic coatings on pills, also known as enteric coatings, are used to protect the medication from gastric acids in the stomach, allowing it to dissolve only once it reaches the intestine. This is particularly important for medications that can irritate the stomach lining, such as NSAIDs, which are commonly taken for pain relief and arthritis. By coating these pills, the risk of developing stomach ulcers, bleeding, or injuries in the upper gastrointestinal tract is reduced.
While the term "plastic coating" is commonly used, it is somewhat misleading. The coatings are not made of traditional plastics, such as petroleum products, but rather, they are made from biodegradable materials, including gelatin derived from animal sources or plant-based alternatives like HPMC (Hydroxypropyl methylcellulose or Hypromellose) and Pullulan. These coatings are designed to be edible and non-toxic, ensuring they can be safely consumed without causing harm.
The primary purpose of these coatings is not solely to increase shelf life but to protect the medication and control the release of active ingredients during digestion. However, as a secondary benefit, the coatings can also contribute to extended shelf life. By protecting the medication from moisture, oxygen, and light, the coatings can slow down the degradation process, keeping the pills effective for a more extended period.
The coatings also serve other purposes, such as providing colour for brand recognition, masking bitter tastes, and creating a hard cover to prevent crumbling or dissolution in the mouth. The specific formulation of the coating can vary to achieve immediate, delayed, sustained, or targeted release, depending on the medication's requirements.
While plasticizing chemicals like phthalates have been used in pill coatings to achieve slower release and maximum absorption, there are concerns about their potential health risks. Some studies have found that these chemicals may be linked to lifelong health problems, leading to a need for safer alternatives. Overall, while the term "plastic coating" is commonly associated with pills, the coatings are typically made from biodegradable materials with a primary focus on protecting the medication and controlling its release, which indirectly contributes to increased shelf life.
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