Laxatives are a type of medicine used to treat constipation and can be bought over the counter or with a prescription. They work by softening stools or stimulating the bowels to get moving. There are several types of laxatives, including bulk-forming, osmotic, stool softeners, lubricants, and stimulants. The time it takes for a laxative to work varies depending on the type and how you take it. For example, enemas and suppositories work the fastest, usually within minutes or hours, while bulk-forming laxatives can take a few days. It's important to follow the instructions on the medication and not to take more than the recommended dose, as this can be harmful and cause side effects such as dehydration, bloating, gas, and stomach cramps.
Characteristics | Values |
---|---|
How laxatives work | Softening stools, stimulating bowel movement, increasing the bulk of stools with additional fibre |
Types | Bulk-forming, osmotic, stool softener, lubricant, stimulant, saline, polymer, emollient, hyperosmotic, prokinetic |
How long they take to work | 15 minutes to 3 days |
Side effects | Bloating, gas, stomach cramps, dehydration, diarrhoea, intestinal blockage, electrolyte imbalance |
Precautions | Drink plenty of fluids, don't take more than the recommended dose, don't use for more than a week without consulting a doctor |
What You'll Learn
- Laxatives should only be used occasionally and for short periods of time
- Laxatives are available over-the-counter, without a prescription, from pharmacies and supermarkets
- Common types of laxatives include bulk-forming, osmotic, stool softeners, lubricants, and stimulants
- Laxatives can cause side effects such as dehydration, abdominal cramps, and bloating
- Before using laxatives, read the patient information leaflet to ensure it's safe for you
Laxatives should only be used occasionally and for short periods of time
Laxatives are a medication that can help treat constipation by stimulating bowel movements. They are available over the counter, without a prescription, but they should only be used occasionally and for short periods of time.
Laxatives should not be used as a long-term solution for constipation. Instead, they are recommended for occasional use and only for a week at a time. It is important to stop taking them as soon as your constipation improves. This is because overuse of laxatives can lead to several health issues.
Firstly, your body can become dependent on them, and you may find that you need to keep taking them to have a bowel movement. This is because frequent use can cause a loss of muscle and nerve response in the intestines, impairing their ability to function normally.
Secondly, overuse of laxatives can cause diarrhoea, which can lead to dehydration and an electrolyte imbalance. This is because many laxatives work by drawing water into the bowels, so it is important to drink plenty of water while taking them to avoid dehydration.
Thirdly, excessive use of laxatives can cause intestinal obstruction, where the bowel becomes blocked by large, dry stools. This can be a serious medical issue that may even require surgery.
Finally, prolonged use of laxatives can cause an imbalance of salts and minerals in the body, which can contribute to heart and kidney problems.
Therefore, it is important to only use laxatives occasionally and for a short period of time. If your constipation does not improve after a week of taking laxatives, you should speak to your doctor. They may recommend lifestyle changes or alternative treatments to help relieve your constipation.
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Laxatives are available over-the-counter, without a prescription, from pharmacies and supermarkets
There are several types of laxatives available over-the-counter, including:
- Bulk-forming laxatives: These increase the bulk or weight of stools by retaining fluid, encouraging the bowels to push out the stools. Examples include ispaghula husk and methylcellulose. They usually start to work within 2 to 3 days.
- Osmotic laxatives: These soften stools and make them easier to pass by increasing the amount of water in the bowels. Examples include lactulose and polyethylene glycol. They typically start working within 2 to 3 days.
- Stimulant laxatives: These speed up bowel movement by stimulating the nerves controlling the muscles lining the digestive tract. Examples include bisacodyl, senna, and sodium picosulfate. They usually have an effect within 6 to 12 hours.
- Stool softener laxatives: These increase the fluid content of hard, dry stools, making them easier to pass. Examples include arachis oil and docusate sodium.
It's important to note that laxatives are not suitable for everyone. They are generally not recommended for children unless advised by a doctor. Additionally, some types of laxatives may be unsafe for individuals with certain conditions, such as Crohn's disease or ulcerative colitis. Before using laxatives, carefully read the patient information leaflet to ensure they are safe for you.
Laxatives come in various forms, including tablets, capsules, sachets of powder, suppositories, and liquids or gels. They can be taken orally or rectally, depending on the type and your preference. It's important to follow the instructions on the package and not exceed the recommended dose to avoid harmful side effects.
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Common types of laxatives include bulk-forming, osmotic, stool softeners, lubricants, and stimulants
Laxatives are a type of medicine used to treat constipation and are available over-the-counter without a prescription. They work by softening stools or stimulating the bowels to get moving.
Bulk-forming laxatives
Bulk-forming laxatives increase the "bulk" or weight of the stool by adding soluble fibre to it. This fibre draws water from the body into the stool, making it bigger and softer. The increase in size stimulates the colon to contract and push the stool out. These laxatives are considered the gentlest and least likely to cause side effects. They usually start to work within 2 to 3 days.
Osmotic laxatives
Osmotic laxatives pull water from other body parts and send it to the colon, softening the stool and making it easier to pass. They usually take 2 to 3 days to work, while some types, like saline laxatives, act quicker, within 30 minutes to 6 hours.
Stool softeners
Stool softeners, also called emollient laxatives, increase the water and fat content of the stool, making it softer and easier to pass. They typically take 12 to 72 hours to work.
Lubricant laxatives
Lubricant laxatives coat the colon, making it slick. This coating prevents the colon from absorbing water from the stool, keeping it soft. It also facilitates a slippery passage for easier bowel movement. Lubricant laxatives typically take 6 to 8 hours to take effect.
Stimulant laxatives
Stimulant laxatives activate the nerves that control the muscles in the colon, forcing it into motion and moving the stool along. They usually take 6 to 12 hours to work.
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Laxatives can cause side effects such as dehydration, abdominal cramps, and bloating
Laxatives are a common medication used to treat constipation and are available over the counter without a prescription. They work by stimulating the bowels to encourage bowel movements. However, as with any medication, they can have side effects.
Laxatives can cause dehydration, which can lead to lightheadedness, headaches, and darker urine. This is because many laxatives work by drawing water into the bowels, so it is important to drink plenty of water while taking them. If you don't, you may become dehydrated or develop an electrolyte imbalance, which can contribute to heart and kidney problems.
Another side effect of laxatives is abdominal cramps and bloating. These are often caused by the stimulation of the digestive tract walls, which can also lead to diarrhoea. In addition, some laxatives can interact with other medications, such as antibiotics and heart medications, so it is important to read labels carefully and consult a doctor or pharmacist if you are taking other drugs.
Most side effects will disappear once a person stops taking the medication, and they can be avoided by starting with a low dose and increasing gradually. However, excessive or prolonged use of laxatives can lead to intestinal obstruction, where the bowel becomes blocked by large, dry stools.
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Before using laxatives, read the patient information leaflet to ensure it's safe for you
Before taking laxatives, it is important to read the patient information leaflet to ensure it is safe for you. Laxatives are a type of medicine used to treat constipation and are available over the counter without a prescription. However, they may not be suitable for everyone, and certain types of laxatives may be unsafe for individuals with specific conditions. For example, laxatives are not usually recommended for children unless advised by a doctor, and they may be unsafe for people with conditions such as Crohn's disease or ulcerative colitis.
Additionally, there are several other factors to consider before taking laxatives:
- Pregnancy and breastfeeding: If you are pregnant or breastfeeding, consult your doctor or pharmacist first, as certain laxatives are safer than others during these times.
- Medical conditions: If you have a bowel condition such as irritable bowel syndrome (IBS), a history of liver or kidney disease, an obstruction in your digestive system, or difficulty swallowing, check with your doctor or pharmacist before using laxatives.
- Medications: Laxatives may interact with other medications such as antibiotics and heart medications. Be sure to read labels carefully and consult your doctor if you are taking any other medications.
- Diet and lifestyle: Before taking laxatives, try increasing your fibre intake, drinking more water, and exercising regularly. These lifestyle changes can often help relieve constipation without the need for laxatives.
By carefully reading the patient information leaflet and considering the above factors, you can ensure that the use of laxatives is safe for you and appropriate for your specific needs and circumstances.
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Frequently asked questions
This depends on the type of laxative and how you take it. Some laxatives can take effect within 15-30 minutes, while others can take up to 48-72 hours.
There are four main types of laxatives: bulk-forming, osmotic, stimulant, and stool softener laxatives. Bulk-forming laxatives increase the bulk or weight of the stool, osmotic laxatives soften the stool by increasing the water content, stimulant laxatives speed up bowel movements, and stool softeners decrease the surface tension of the stool so it absorbs more water.
Like any medication, laxatives can have side effects. Common side effects include abdominal cramps, dehydration, and bloating. Serious side effects are rare but may include diarrhoea, intestinal obstruction, and electrolyte imbalance.
No, laxatives are not suitable for everyone. They are not usually recommended for children unless advised by a doctor. People with certain health conditions, such as Crohn's disease or ulcerative colitis, should also avoid taking laxatives unless specifically instructed to do so by their doctor.