Dulcolax is one of the “laxative-stimulant” types of drugs. It serves to relieve occasional constipation, it also serves in the preparatory stage for an exploratory examination, such as a colonoscopy; before and after surgery, and in circumstances that require a bowel movement.

How Dulcolax Works

This medicine exerts an action that stimulates the muscles of the intestine and the retention of water of the body in this organ. Therefore, dulcolax helps to soften the stool and accelerate its passage through the intestines. Just taking dulcolax before bed will ensure a bowel movement the next morning. Meanwhile, suppositories work faster, about 15 to 60 minutes after placement.

What is Dulcolax and what is it for

Bisacodyl, a component of dulcolax, is a laxative that serves to promote movement of the intestines, by stimulating the nerve functions found in the intestinal wall.

Once dulcolax has been ingested, the patient after a few minutes can feel the functioning of the intestines being activated, causing contractions with stomach cramps that produce the urge to evacuate and subsequent relief of constipation. In this process, the stool begins to have a severe movement throughout the intestines that accelerates the process because absorption is inhibited and there is an increase in the hydration of the intestines, which allows to increase the softness and volume of the intestines. feces.

Dulcolax is used for constipation

Dulcolax serves to empty the last part of the intestine and to give relief to people who suffer from constipation, which is generated, in most cases, by bad eating habits.

Dulcolax dosage for constipation

In adults and children 6 to 12 years of age, the usual dose for these patients is 1 to 2 tablets (5 mg or 10 mg) orally, or 1 adult suppository (10 mg) pressed rectally.

For children 6 to 12 years of age, the usual dose is 1 tablet (5 mg) orally or 1 pediatric suppository (5 mg) rectally.

Dulcolax is for use before a study or surgery

Before undergoing a colonoscopy or any other intensive examination, the patient can take dulcolax to cleanse that organ, and allow the study to be carried out.

Dulcolax dosage before a study or surgery

In this case, the usual dose for adults is 2 to 4 tablets (10 mg or 20 mg) orally, the night before the medical procedure, then the rectal introduction of 1 suppository the morning of the medical act.

Dose Dulcolax pearls or tablets for children

The dose for children 6 years and older, the usual dose is to take 1 capsule (5 mg) orally the night before the medical act and the rectal introduction of 1 pediatric suppository (5 mg) the next morning.

Presentation of Dulcolax

Dulcolax can be found in pharmacies in the following presentations:

Dulcolax gotas

7.5 mg / 1mL, 15 mL container

Dulcolax tablets

5 mg, Caja x 10

What Dulcolax tablet or tablet contains

Each yellow enteric-coated dulcolax tablet contains 5 mg of bisacodyl. Non-Medicinal Ingredients: Acacia, Beeswax, Carnauba Wax, Cornstarch, Dibutyl Phthalate, Eudragit, Glycerin, Lactose, Magnesium Stearate, Polyethylene Glycol, Sucrose, Talc, Tartrazine (yellow), and Titanium Dioxide.

Dulcolax pearls or soft capsules

2.5 mg. Pack of 30 soft capsules

Dulcolax suppositories

Each suppository contains 10 mg of bisacodyl (composition for adults). Non-medicinal ingredient: solid fat.

Dulcolax trade name

The laxative bisacodyl, the active ingredient in dulcolax, is available under different brand names:

  • Dulcolaxo
  • Dulco-Laxo
  • Other multicomponent compositions such as Bekunis complex

How to take Dulcolax

The tablets should be taken before sleeping so that defecation can take place the next morning.

Avoid taking dulcolax with milk or antacids, as these products can dissolve the layer of the tablet. It is advisable to take them whole without breaking or chewing them.

How to use Dulcolax suppository

To use a dulcolax suppository, it must be removed from its packaging and the pointed end inserted into the rectum, then firmly pushed in. Subsequently, the flat end should be pushed laterally so that it touches part of the wall of the rectum.

The patient should keep the suppository in the rectum for as long as possible. If the introduction of the suppository is difficult due to the presence of anal fissures or hemorrhoids, you should smear a lubricant such as petroleum jelly on the pointed end of the suppository before insertion.

Suppositories generally begin to take effect within the next 15 minutes to a maximum of 60 minutes, after presentation.

Warnings on the use of Dulcolax

During the taking of dulcolax some considerations should be taken, to avoid blocking its effectiveness or some undesirable effects.

There are several factors that can be considered in determining the dose of dulcolax a person needs: weight, health, and other medications. In any case, it is not advisable to change the dose recommended here, just in case the doctor recommends a different dose.

This medication should not be used for more than 7 days unless directed by your doctor. If after 1 week of use, defecation does not occur, it is essential to seek professional help.

Dulcolax contraindications

The use of dulcolax is not recommended when there is a precedent for a disease or a specific state of health, such as:

  • When the person is allergic to bisacodyl or any of the ingredients in dulcolax.
  • When the person presents a state of advanced dehydration
  • If the patient is presenting with intestinal obstruction, appendicitis, chronic inflammatory bowel disease such as Crohn’s disease or ulcerative colitis; its use is also not recommended if there is severe abdominal pain with nausea and vomiting.
  • If the person has a disorder causing a pathological reaction to lactose or sucrose (for example, galactosemia, fructose intolerance).

Dulcolax side effects

The side effects of dulcolax do not occur in all patients. Only a few people have reported having some of these reactions and in most cases they disappear without leaving any complications.

  • Diarrhea
  • Abdominal discomfort, pain, or cramps
  • Sickness
  • Vomiting

Other side effects that occur sporadically could cause serious problems if not taken care of in time.

  • Rectal discomfort or pain
  • Blood in the stool
  • Symptoms of intestinal irritation, such as severe abdominal cramps or diarrhea
  • Symptoms of an allergic reaction, such as a rash or itching
  • Symptoms of a severe allergic reaction, such as hives, swelling of the face, or swelling of the throat

Effect of Dulcolax with other medications

Interference of one drug with another does not always result in the discontinuation of one of them. However, it is advisable to ask your doctor what to do in case of drug interactions.

In case of not knowing exactly which medications may or may not have a reaction, when combined with dulcolax, it is recommended not to take any other drug, at least two hours before and two hours after taking dulcolax, to avoid inhibiting their effectiveness, or produce some interaction.

  • Histamine H2 receptor antagonists, such as: ranitidine or cimetidine
  • Antacids, such as aluminum hydroxide, calcium carbonate, magnesium hydroxide
  • Corticosteroids, such as: dexamethasone, hydrocortisone, prednisone
  • Digoxin
  • Diuretics, such as: furosemide or hydrochlorothiazide
  • Proton pump inhibitors or PPIs such as omeprazole or pantoprazole
  • Milk
Samantha Robson
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Dr. Samantha Robson ( CRN: 0510146-5) is a nutritionist and website content reviewer related to her area of ​​expertise. With a postgraduate degree in Nutrition from The University of Arizona, she is a specialist in Sports Nutrition from Oxford University and is also a member of the International Society of Sports Nutrition.

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