Instant Laxatives: Quick Relief Or Risky Business?

There are several types of laxatives that provide fast relief from constipation. The fastest way to get constipation relief is to use over-the-counter laxatives administered rectally, such as enemas and suppositories. These include mineral oil enemas and bisacodyl rectal suppositories, which can be purchased under the brand names Pedia-Lax and Magic Bullet. Rectally administered laxatives work quickly, usually within 15 minutes to one hour, but they often cause stomach cramping, diarrhoea, and rectal irritation. They may also be difficult or uncomfortable for some people to use. The fastest-working oral laxatives include saline laxatives, such as magnesium hydroxide and magnesium citrate, and stimulant laxatives, such as senna tablets, which can be purchased under the brand names Milk of Magnesia, Dulcolax, and Senokot. These laxatives typically work in less than 12 hours and are taken orally, which is more comfortable for most people.

Stimulant laxatives

It is recommended that stimulant laxatives should not be used for more than a week unless specifically advised by a doctor. They should also not be given to children under the age of six unless instructed to do so by a pediatrician. Before using a stimulant laxative, it is important to consult with a doctor, especially if you have any current health conditions or are pregnant or breastfeeding.

Some brand names of stimulant laxatives include Senexon, Fletcher's Castoria, Senokot, Black Draught, Feen-A-Mint, Correctol, Dulcolax, and Carter's Little Pills.

Saline laxatives

Some common saline laxatives include:

• Sodium acid phosphate
• Sodium phosphate rectal
• Magnesium citrate
• Magnesium hydroxide

Bulk-forming laxatives

Benefits

Side Effects

While generally safe for healthy individuals, bulk-forming laxatives may cause some side effects, including mild stomach pain, bloating, gas, and difficulty swallowing. People with kidney disease or diabetes are at a higher risk of electrolyte imbalances when taking laxatives, so it is important to consult a doctor before use.

When to Use Them

How to Take Them

It is important to follow the instructions on the medication to prevent side effects. Bulk-forming laxatives should be taken with at least 8 ounces of water or fruit juice to prevent bowel obstruction, and staying well-hydrated throughout the day is essential. They typically take 12 hours to three days to provide relief.

Osmotic laxatives

The overuse of osmotic laxatives can lead to dehydration and the loss of electrolytes like sodium, calcium, and potassium. This can cause side effects such as lightheadedness, headaches, and dark-coloured urine. Other potential side effects include nausea, bloating, cramping, flatulence, and diarrhoea.

Lubricant laxatives

When taken orally, lubricant laxatives can cause side effects such as anal seepage, pruritus ani (intense itching around the anus), perianal discomfort, and intestinal malabsorption. These side effects should be discussed with a doctor or pharmacist before taking the medication. Lubricant laxatives can also interfere with the absorption of certain vitamins, so they should be taken on an empty stomach, at least 2 hours apart from other medications.

Frequently asked questions