What the FDA labels say about taking them together
Bisacodyl and magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients
Magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients's FDA label of January 31, 2026 names bisacodyl in its drug interactions section; the bisacodyl label PlainMeds reads does not name magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients. The magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients label: “Avoid use of stimulant laxatives while taking SUFLAVE.”
Check it at the source: the bisacodyl FDA label on DailyMed (effective April 8, 2025); the magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients FDA label on DailyMed (effective January 31, 2026, Azurity Pharmaceuticals, Inc.).
What does the bisacodyl label say about magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients?
Bisacodyl's label (effective April 8, 2025) does not name magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients in these sections. A label lists what its studies and reports found; it is not a complete list.
Source: FDA drug label (Dulcolax Stimulant Laxative), Chattem, Inc., effective April 8, 2025 (SPL set f1e4b28a-ed74-4eff-bd10-b2bfaf7483b0), via openFDA; the full label on DailyMed
What does the magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients label say about bisacodyl?
Magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients label, drug interactionsAvoid use of stimulant laxatives (e.g., bisacodyl, sodium picosulfate) while taking SUFLAVE [see Warnings and Precautions ( 5.5 )].
Source: FDA drug label (SUFLAVE), Azurity Pharmaceuticals, Inc., effective January 31, 2026 (SPL set d5710a04-2b0a-402c-a8b0-025766f1a437), via openFDA; the full label on DailyMed
These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.
Both medicines on the record
| Bisacodyl | Magnesium sulfate, polyethylene glycol 3350 and 3 other ingredients | |
|---|---|---|
| Labeled for | Constipation | n/a |
| Boxed warning | No | No |
| Pharmacy cost (NADAC) | $0.320 per suppository 10 mg suppository | $61.65 per unit Suflave powder |
| Shortage now | No current entry | No current entry |
Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)
What next?
- Check more medicines together
- up to five at once