Bisacodyl and Magnesium Citrate: what the research found
PubMed indexes 8 records that name Bisacodyl and Magnesium Citrate together, either in the title or in an interaction, co-administration, or pharmacokinetic context. The key findings come first, in the authors’ own words, followed by every study with its design and PubMed link.
A summary of published research, not medical advice. A pharmacist can check any combination against your full list of medicines and supplements.
Reviews and human studies first. Each quote is the authors’ own conclusion about their study, not a NutriStack assessment, and a single study is not a consensus.
“Our data indicate that Bowklean is a more effective and better-tolerated bowel cleansing preparation before colonoscopy than Klean-Prep/Dulcolax. Bowklean may therefore increase positive attitudes toward colonoscopies and participation rates.”
“Castor oil/ Bisacodyl regimen is cheap but not consistently associated with adequate bowel preparation for colonoscopy. Expertise of endoscopists and copious lavage are crucial when CaO/B regimen is used for bowel cleansing.”
“Sodium picosulfate/magnesium citrate proved to be noninferior to ascorbic acid-enriched polyethylene glycol solution plus bisacodyl in efficacy and safety. Timing of the colonoscopy and addition of bisacodyl to sodium picosulfate/magnesium citrate warrants further consideration. See Video Abstract at http://links.lww.com/DCR/A461.”
The research
8 studies naming Bisacodyl and Magnesium Citrate.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
“Our data indicate that Bowklean is a more effective and better-tolerated bowel cleansing preparation before colonoscopy than Klean-Prep/Dulcolax. Bowklean may therefore increase positive attitudes toward colonoscopies and participation rates.”
Names both Bisacodyl and Magnesium Citrate in its title.
“Sodium picosulfate/magnesium citrate proved to be noninferior to ascorbic acid-enriched polyethylene glycol solution plus bisacodyl in efficacy and safety. Timing of the colonoscopy and addition of bisacodyl to sodium picosulfate/magnesium citrate warrants further consideration. See Video Abstract at http://links.lww.com/DCR/A461.”
Names both Bisacodyl and Magnesium Citrate in its title.
“There was no statistical difference between the quality of the three bowel preparations. Patients considered an oral bisacodyl and magnesium citrate regimen more easily tolerated, though it was associated with more diarrhea.”
Names both Bisacodyl and Magnesium Citrate in its title.
“Two liters of PEG-ELS plus laxative improved preparation quality and patient satisfaction and reduced preparation time. Magnesium citrate pretreatment had fewer symptoms and was preferred to bisacodyl. PEG-ELS in 2 L quantities could reduce costs, and consideration should be given to making it available commercially.”
Names both Bisacodyl and Magnesium Citrate in its title.
West African journal of medicine · 2020 · PMID 33185262
Human subjects258 participants
“Castor oil/ Bisacodyl regimen is cheap but not consistently associated with adequate bowel preparation for colonoscopy. Expertise of endoscopists and copious lavage are crucial when CaO/B regimen is used for bowel cleansing.”
Names both Bisacodyl and Magnesium Citrate in its title.
Canadian journal of gastroenterology = Journal canadien de gastroenterologie · 2011 · PMID 22175056
Human subjects
“Ces données démontrent que l’ajout de bisacodyl avant l’ingestion de PSLX a un effet significatif sur la fréquence des mouvements intestinaux et est corrélé avec la qualité du nettoyage intestinal. Le moment des mouvements intestinaux qui s’ensuivent a des conséquences pratiques sur le sommeil et la durée du déplacement vers le bloc d’endoscopie.”
Names both Bisacodyl and Magnesium Citrate in its title.
Limitations
What this evidence cannot tell you.
Search-based evidence indexes have real limits, and it is worth being explicit about them:
Selection. These records were found by searching PubMed titles and abstracts for both substance names alongside interaction and pharmacokinetic terms. Relevant work that phrases things differently, or is not indexed in PubMed, will be missing.
No effect size. The quoted conclusions are the authors’ words about their own study. We have not extracted effect direction or magnitude, and a single study’s conclusion is not a consensus.
Population mismatch. Findings in healthy volunteers, animals, or a specific patient group may not transfer to you, your dose, or your formulation.
Absence is not safety. Few published studies means the combination is under-studied, which is not the same as established as safe.
How to read this page
A literature summary, not guidance.
A study listed here is not proof that Bisacodyl and Magnesium Citrate interact. Two substances can be named together in a paper that never tested them in combination, and a source listed as background may cover only one of them.
Findings are quoted from each abstract as the authors wrote them. NutriStack has not re-analysed, pooled, or reconciled them, and they may disagree with each other.
Decisions about prescription medication and supplements belong with your prescriber or pharmacist, who can see your full regimen. Our timing guide and forms guide explain the general mechanisms.
Nearby evidence
Other pairs with published research.
Pages covering Bisacodyl or Magnesium Citrate alongside a different substance.
NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Bisacodyl, Magnesium Citrate, and several hundred other substances.
Log your routine, get reminders at the times you choose, and scan a label to add a product. The checker is a research and organisation tool, not a clinical decision aid.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.
