
Laxatives are a medication that can be used to treat constipation or to clear the intestines before a medical procedure. They are usually taken in pill form, but can also come as chewable tablets, dissolving strips, liquids, powders, suppositories, or enemas. It is important to follow the instructions on the medication and not to take more than the recommended dose, as this can lead to an overdose. Laxatives should be taken as directed to prevent side effects such as bloating, gas, and stomach cramps. They are typically available without a prescription, but it is important to check with a healthcare provider before taking them, especially if you are pregnant or taking other medications.
Characteristics | Values |
---|---|
Purpose | Treat constipation or clean out intestines before a bowel examination/surgery |
Types | Bulk-forming, osmotics, stool softeners, lubricants, stimulants |
Forms | Pills, powders, liquids or syrups, suppositories, enemas |
Dosage | Based on age, medical condition, and response to treatment |
Side effects | Bloating, gas, stomach cramps, nausea, diarrhoea, reddish-brown urine, decreased urination, muscle cramps, irregular heartbeat, dizziness, mental/mood changes |
Allergic reaction symptoms | Rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing |
Overdose symptoms | Nausea/vomiting/diarrhoea that doesn't stop, severe stomach/abdominal pain or cramping, passing out, trouble breathing |
Precautions | Not recommended for long-term use during pregnancy, may pass into breast milk |
Drug interactions | May change how medications work or increase the risk of serious side effects |
What You'll Learn
- Laxatives are available in different forms, including pills, powders, liquids, and suppositories
- They are used to treat constipation and empty bowels before medical procedures
- Common types include bulk-forming, osmotics, stool softeners, lubricants, and stimulants
- They can be bought over the counter or with a prescription for chronic constipation
- Side effects may include bloating, gas, stomach cramps, and diarrhoea
Laxatives are available in different forms, including pills, powders, liquids, and suppositories
Laxatives are available in various forms, each with its unique method of administration and mechanism of action. Here is a detailed description of the different forms of laxatives:
Pills: Laxatives in pill form are typically taken by mouth and can come as capsules, tablets, or chewable tablets. These pills are designed to be swallowed whole, while chewable tablets are chewed thoroughly before swallowing. Some pills may also come in the form of dissolving strips that dissolve on the tongue, which can be taken with or without water. It is important to follow the directions on the package or consult a healthcare professional for proper dosage and administration.
Powders: Powdered laxatives offer a convenient option that can be mixed with water or other liquids before consumption. This form allows for easy adjustment of the dosage by varying the amount of powder mixed with the liquid. It is crucial to use a proper measuring device, such as a measuring cup or spoon, to ensure an accurate dosage.
Liquids or Syrups: Liquid laxatives are typically measured out and consumed directly. They may come with a measuring cup or a marked bottle to ensure accurate dosing. Liquid laxatives are particularly useful for individuals who have difficulty swallowing pills or prefer a more convenient option.
Suppositories: Suppositories are solid, pellet-shaped laxatives that are inserted directly into the rectum through the anus. They are designed to dissolve and release the medication locally, stimulating the nerves in the large bowel to induce a bowel movement. This form of administration bypasses the digestive system, providing a faster route for the medication to take effect.
Each form of laxative has distinct characteristics, and the choice of form depends on various factors, including personal preference, constipation symptoms, severity, potential side effects, and medical conditions. It is always advisable to consult a healthcare provider before starting any laxative treatment to ensure safety and effectiveness.
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They are used to treat constipation and empty bowels before medical procedures
Laxatives are used to treat constipation and empty the bowels before medical procedures. They are available in many forms, including pills, powders, liquids, suppositories, and enemas. They work by softening hard stools or stimulating the bowels to move, making it easier to pass stool.
Laxatives come in different types, including bulk-forming laxatives, osmotics, stool softeners, lubricants, and stimulants. Bulk-forming laxatives, such as psyllium (Metamucil®), polycarbophil (FiberCon®), and methylcellulose (Citrucel®), are considered the gentlest option and are often recommended as the first choice. They work by drawing water into the stool, making it bigger and softer, which stimulates the colon to contract and push out the stool. These laxatives can take anywhere from half a day to several days to provide relief.
Osmotic laxatives, like polyethylene glycol (MiraLAX®), pull water from other parts of the body and send it to the colon, softening the stool. Stool softeners, such as docusate (Colace®), increase the water and fat absorbed by the stool, making it softer. Lubricant laxatives, including mineral oil, coat the colon, making it slick and preventing water absorption from the stool, which helps with the passage.
Stimulant laxatives, such as bisacodyl (Dulcolax®) and senna (Fletcher's® Laxative), activate the nerves controlling the colon muscles, forcing them into motion to move the stool. These are usually recommended when other over-the-counter types haven't helped.
It is important to take laxatives exactly as directed to prevent side effects such as bloating, gas, and stomach cramps. They should not be taken for more than 7 days unless directed by a doctor. Additionally, laxatives should not be the first option for treating constipation. Lifestyle changes, such as increasing fibre intake, drinking enough fluids, taking probiotics, and exercising, are usually recommended first.
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Common types include bulk-forming, osmotics, stool softeners, lubricants, and stimulants
Laxatives are medicines that treat constipation by softening stools or stimulating the bowels to ease bowel movements. They come in different forms, including pills, powders, liquids, suppositories, and enemas. While most laxatives are available over the counter, it is important to consult a healthcare provider to determine the appropriate type and dosage, as they can have side effects and may not be suitable for everyone.
Bulk-forming Laxatives (Fiber Supplements)
Bulk-forming laxatives add soluble fiber to the stool, drawing water from the body into the stool to make it bigger and softer. This stimulates the colon to contract and push out the stool. They are generally considered the gentlest type of laxative and are often recommended as the first option. Examples include psyllium (Metamucil®), polycarbophil (FiberCon®), and methylcellulose (Citrucel®).
Osmotics
Osmotic laxatives pull water from the body and send it to the colon, softening the stool and making it easier to pass. Saline laxatives, a type of osmotic laxative, contain salt that holds water in the colon. Examples of osmotic laxatives are polyethylene glycol (Gavilax®, MiraLAX®) and magnesium hydroxide solution (Dulcolax®, Ex-Lax®, Phillips’® Milk of Magnesia).
Stool Softeners
Stool softeners, also known as emollient laxatives, increase the water and fat absorption of the stool, making it softer. An example of a stool softener is docusate (Colace®).
Lubricants
Lubricant laxatives coat the colon, creating a slick surface that prevents water absorption from the stool, keeping it soft and making it easier to pass. Mineral oil is an example of a lubricant laxative.
Stimulants
Stimulant laxatives activate the nerves controlling the muscles in the colon, forcing it into motion to move the stool along. They are typically recommended when other over-the-counter types have not been effective. Examples of stimulant laxatives include bisacodyl (Dulcolax®) and senna (Fletcher’s® Laxative).
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They can be bought over the counter or with a prescription for chronic constipation
Laxatives are available over the counter and with a prescription. Over-the-counter laxatives are meant for very short-term use only, and overusing them could worsen constipation and lead to serious medical problems. They can even be addictive. Constipation that won't clear up may be a symptom of a serious illness, so it is important to consult a healthcare provider.
Using prescription laxatives under a healthcare provider's supervision is much safer for long-term use, so if you have regular constipation, this may be a better option. Several types are available that work differently, so if one type doesn't work for you, another might.
Prescription laxatives are most often prescribed for treating chronic constipation that's idiopathic (not due to any known cause) and constipation related to a condition, including constipation-predominant irritable bowel syndrome (IBS-C) and opioid-induced constipation. Unlike over-the-counter laxatives, prescription drugs are meant to keep you regular when constipation is an ongoing problem, not for rapid relief of occasional constipation.
Several classes of prescription laxatives are available. Each one works differently and may be prescribed in different situations, depending on what's believed to be causing your constipation. They include osmotic laxatives, prokinetic agents, secretagogues, and opioid antagonists.
Osmotic laxatives, available in both OTC and prescription products, draw water into the bowel to help soften stool so it passes more easily. Osmotic laxatives that are only available by prescription include Cholac/Generlac (lactulose), which is approved for constipation, including that related to barium retention.
Prokinetic agents cause the gastrointestinal tract to contract and push materials through. The only drug in this class currently available in the United States is Motegrity (prucalopride), approved for chronic idiopathic constipation in adults.
Secretagogues pull water into the bowel to soften the stool, like osmotics, but through a different mechanism of action. Drugs in this class include Amitiza (lubiprostone), approved for chronic constipation in adults and constipation from IBS-C in adult women, and Linzess (linaclotide), approved for chronic constipation, including that from IBS-C, in adults.
Opioid painkillers frequently cause constipation. Medications have been developed to relieve this type of constipation by partially blocking the actions of opioid medications. They include Relistor (methylnaltrexone), Movantik (naloxegol), and Symproic (naldemedine).
It is important to note that laxatives should not be used as a long-term self-treatment for serious medical conditions, as they can mask a problem that needs immediate attention. For example, colon cancer can cause constipation by way of obstruction. Therefore, it is always recommended to consult a healthcare provider before taking laxatives.
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Side effects may include bloating, gas, stomach cramps, and diarrhoea
Laxatives are a common treatment for constipation, but they can also cause side effects such as bloating, gas, stomach cramps, and diarrhoea. These side effects can be uncomfortable and may interfere with daily life. Understanding the causes of these side effects and how to manage them can help people use laxatives effectively and minimise their impact on daily life.
Bloating is a common side effect of laxatives, characterised by a feeling of tightness, pressure, or fullness in the belly. It is often related to excess intestinal gas, which can be caused by the fermentation of carbohydrates by gut bacteria. This can occur when there is an overgrowth of certain bacteria or an imbalance in the gut microbiome. Additionally, visceral hypersensitivity can lead to a feeling of bloating even when gas levels are normal. Managing bloating can be achieved through herbal teas, antacids, magnesium supplements, probiotics, and regular exercise.
Gas is another common side effect of laxatives, and it is typically released through burping or passing gas (flatus). While it is a normal part of the digestive process, an increase in gas or gas pain may be caused by certain foods, digestive disorders, or swallowing air while eating or drinking. Managing gas can be achieved through dietary changes, such as reducing carbonated beverages and eating slowly, as well as by treating any underlying digestive disorders.
Stomach cramps are also a possible side effect of laxative use. These cramps can be caused by trapped gas or by the stimulation of the intestines, which can lead to pain and discomfort. Managing stomach cramps can be achieved through relaxation techniques, such as hypnosis, as well as by treating any underlying causes, such as digestive disorders.
Diarrhoea is a less common but more serious side effect of laxatives. It can be caused by the stimulation of the intestines, leading to increased water content in the stool. Managing diarrhoea involves staying hydrated, as laxatives can also cause dehydration, and seeking medical advice if the condition persists or worsens.
While laxatives can be effective in treating constipation, it is important to be aware of their potential side effects and how to manage them. Understanding the causes and management strategies for bloating, gas, stomach cramps, and diarrhoea can help people effectively use laxatives while minimising discomfort and maintaining a good quality of life.
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Frequently asked questions
It is not advisable to take half a pill of laxative. Taking laxatives exactly as instructed is important to ensure they work correctly and to reduce the risk of side effects. If you are unsure, consult your doctor or pharmacist.
Side effects of taking laxatives may include stomach/abdominal pain or cramping, nausea, diarrhoea, weakness, and reddish-brown urine. Serious side effects may occur with overuse, so it is important to follow the instructions on the medication.
It depends on the type of laxative and how you take it. Laxatives that work fastest, such as enemas and suppositories, can take effect within minutes or hours, while gentler types, like bulk-forming laxatives, may take a few days.
Before taking laxatives, it is recommended to try lifestyle changes such as increasing fibre intake, drinking more water, taking probiotics, and exercising. If these changes do not help, then laxatives may be considered.