Supplement × Prescription·a caution·Moderate evidence

Potassium + Solifenacin

Caution Moderate evidence

Antimuscarinic slowing of gastrointestinal transit may increase mucosal injury risk from solid oral potassium products.

From the database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, and the recommendation.

Substances
Pair type
Caution
Evidence
Moderate
Source citations
1
Scope
Supplement × Prescription
Last verified
June 4, 2026
CautionModerate evidence

What is happening. Antimuscarinic slowing of gastrointestinal transit may increase mucosal injury risk from solid oral potassium products.

Mechanism. Reduced gastrointestinal motility increases contact time between potassium salts and mucosa.

Recommendation. Use potassium only under clinician guidance; consider non-solid formulations if potassium is necessary and constipation or dysphagia is present.

Stack Score

How it moves the number.

Effect on the composite score

If both Potassium and Solifenacin are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1
  • 1U.S. National Library of Medicine. Solifenacin Succinate Tablets US Prescribing Information. 2026.Needs sourceNo link

Check your full routine

One pair was the worked example.

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.