Supplement × Prescription·Evidence index
PubMed indexes 8 records that name Sulfasalazine and Vitamin B9 together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.
Every statement below is attributed to a named, dated, linked source.
This page lists published research relevant to Sulfasalazine and Vitamin B9. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
“Both sulfasalazine therapy and folate supplementation have a protective effect in colorectal cancer development in a population of patients with longstanding ulcerative colitis. Randomized controlled trials are needed to explore these hypotheses.”
Names both Sulfasalazine and Vitamin B9 in its title.
Names both Sulfasalazine and Vitamin B9 in its title.
Names both Sulfasalazine and Vitamin B9 in its title.
Names both Sulfasalazine and Vitamin B9 in its title.
“Isothermal stress testing, forced degradation and dissolution studies, followed by the analysis with a developed chromatographic method for the monitoring of folic acid, sulfasalazine and two of its related impurities, sulfapyridine and salicylic acid, gave us an insight into its chemical compatibility.”
Names both Sulfasalazine and Vitamin B9 in its title.
Names both Sulfasalazine and Vitamin B9 in its title.
Names both Sulfasalazine and Vitamin B9 in its title.
“These results are interpreted to indicate that sulfasalazine interferes with a folate recognition site which is common to these enzymes and to the intestinal transport system. Sulfasalazine, therefore, has certain properties of an antifolate drug.”
Names both Sulfasalazine and Vitamin B9 in its title.
Search-based evidence indexes have real limits, and it is worth being explicit about them:
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 Sulfasalazine, Vitamin B9, and several hundred other substances.
The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.
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.
