Supplement × Prescription·timing-sensitive·Emerging evidence
Psyllium can delay or reduce absorption of some oral drugs if taken at the same time as Fosfomycin.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
What is happening. Psyllium can delay or reduce absorption of some oral drugs if taken at the same time as Fosfomycin.
Mechanism. Gel-forming soluble fiber can trap medications in the gut and slow or reduce absorption.
Recommendation. Separate psyllium from Fosfomycin by at least 2 hours unless the prescriber gives different timing instructions.
Effect on the composite score
If both Fosfomycin and Psyllium Husk are in the same stack, this pair applies −5 to your Stack Score (per scored timing-sensitive row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
Every claim on this page is cited. PMIDs link straight to PubMed.
Check your full routine
Drop your supplements and prescriptions into NutriStack and it runs every pair at once: every interaction, synergy, timing rule, and contraindication, each linked to its primary source.
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.
NutriStack